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Academic literature on the topic 'Oka River'

Author: Grafiati

Published: 3 June 2025

Last updated: 22 June 2025

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Journal articles on the topic "Oka River"

1

Karmazina, Inessa O., Stanislav K. Korb, Andrey P. Mikhailenko, et al. "The last Pleistocene glaciations phylogeography episode of Phaneroptera falcata (Poda, 1761) (Orthoptera: Tettigoniidae) in the Volga River basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment." Acta Biologica Sibirica 6 (September 18, 2020): 279–91. http://dx.doi.org/10.3897/abs.6.e56139.

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This study is to research the phylogeography of Phaneroptera falcata (Poda, 1761) in the Volga river basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment at the last Pleistocene glaciation episode. The studied location is the Volga river basin, a territory within the central and partially southern parts of European Russia; it includes the rivers Volga, Oka, Khoper and Don basins. We used the traditional molecular phylogeography methods: mtDNA COI gene fragment from the key locations within the studied area was sequenced and then analyzed (cladogram topology, haplotype diversity, cladogram calibration etc.). The phylogenetic tree shows the dispersion of our samples over the following regions: Lower Volga, Middle Volga, Lower Oka, Middle Oka, Upper Oka, Don basin, Khoper basin. Nine haplotypes determined from our samples; they are grouped into 7 haplogroups. Six of them are in the basins of the main rivers of the Volga region: three haplogroups - on the Oka (Upper, Middle and Lower Oka respectively), haplogroups of the Khoper and Don basins, and the haplogroup of the Middle Volga combining two subgroups – Lower and Middle Volga basins. The distribution of found haplogroups correlates with big river basins in the Volga area (Volga, Oka, Khoper, Don).

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2

Karmazina, Inessa O., Stanislav K. Korb, Andrey P. Mikhailenko, et al. "The last Pleistocene glaciations phylogeography episode of Phaneroptera falcata (Poda, 1761) (Orthoptera: Tettigoniidae) in the Volga River basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment." Acta Biologica Sibirica 6 (September 18, 2020): 279–91. https://doi.org/10.3897/abs.6.e56139.

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This study is to research the phylogeography of Phaneroptera falcata (Poda, 1761) in the Volga river basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment at the last Pleistocene glaciation episode. The studied location is the Volga river basin, a territory within the central and partially southern parts of European Russia; it includes the rivers Volga, Oka, Khoper and Don basins. We used the traditional molecular phylogeography methods: mtDNA COI gene fragment from the key locations within the studied area was sequenced and then analyzed (cladogram topology, haplotype diversity, cladogram calibration etc.). The phylogenetic tree shows the dispersion of our samples over the following regions: Lower Volga, Middle Volga, Lower Oka, Middle Oka, Upper Oka, Don basin, Khoper basin. Nine haplotypes determined from our samples; they are grouped into 7 haplogroups. Six of them are in the basins of the main rivers of the Volga region: three haplogroups - on the Oka (Upper, Middle and Lower Oka respectively), haplogroups of the Khoper and Don basins, and the haplogroup of the Middle Volga combining two subgroups – Lower and Middle Volga basins. The distribution of found haplogroups correlates with big river basins in the Volga area (Volga, Oka, Khoper, Don).

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Bykov, A. D. "Bream in the rivers of the Oka Basin." Problems of Fisheries 25, no. 1 (2024): 67–82. http://dx.doi.org/10.36038/0234-2774-2024-25-1-67-82.

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Bream in the river systems of the Oka basin is widespread, including tributaries of the third order. This representative of cyprinid fish is numerous mainly in the most full-flowing rivers with a length of more than 500 km. The age composition of bream from net catches in the Oka over a long period of observations did not exceed 14 age groups, and fish older than 12+ were not recorded in the Klyazma and Moscow rivers. The growth of bream in the Oka, Klyazma, and Moscow rivers does not differ significantly on average, due to seasonal bream migrations and similar feeding conditions. The main factor influencing the decrease in the number of bream in the Oka and Klyazma is a long period of low spring floods, which prevents flooding of the high river floodplain and sharply reduces the efficiency of its spawning, especially in the upper reaches of the Oka and Klyazma rivers. An adaptive feature of the reproductive biology of bream in the upper reaches of these rivers is the extended spawning migration of mature fish upstream, where the ripal vegetation in riverbeds serves as a spawning substrate for it. Bream in the rivers of the Oka basin is currently a secondary object of amateur fishing and one of the main species in poaching catches.

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Oreshkin, Valentin, and Vladislav Khrisanov. "ON THE PREVALENCE OF BACKGROUND AND TECHNOGENICALLY DEPENDENT CONCENTRATIONS OF HEAVY METALS IN RIVER WATERS." LIFE OF THE EARTH 46, no. 4 (2024): 406–17. https://doi.org/10.29003/m4330.0514-7468.2020_46_4/406-417.

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Features of the prevalence of Cd and Pb dissolved forms in the water of sections of the Oka river and other rivers of the Russian Plain are considered. The influence of anthropogenic wastewater (industrial, municipal and agricultural) containing heavy metals is clearly manifested only in certain sections of the rivers of central Russia (Oka River, Volga River, and Moscow River) against the background of natural landscape and geochemical processes. An attempt is made to develop approaches to assessing the degree of anthropogenic influence on the water composition of various river sections, including those remote from pollution zones. An ecological and geochemical lead-cadmium indicator is proposed, which makes it possible to assess the anthropogenic impact and divide river sections into 3 categories (strong, medium and weak pollution, respectively). The river sections with low anthropogenic pollution have high values of this indicator corresponding to waters with the background (or close to background) concentration. A decrease in the indicator values means an increase in the role of anthropogenic effluents

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Ismaiylov, G. Kh, and N. V. Muraschenkova. "EVALUATION OF POSSIBLE CHANGES IN THE RIVER LINE OF THE OKA BASIN FOR THE COMING PERIOD OF THE FIRST HALF OF THE XXI CENTURY." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 5 (2020): 71–75. http://dx.doi.org/10.23885/2500-395x-2020-1-5-71-75.

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A retrospective analysis and assessment of long-term changes in the annual and seasonal runoff of the Oka River basin over a long 131-year observation period (1881 / 1882–2011/2012) was performed. The changes in the annual distribution of the Oka river runoff over the seasons of the year (spring flood, summer-autumn and winter low water) from its annual value for the selected time periods (before and after 1976/1977) are considered. It has been noted that over the past decades, river runoff has been formed in new climatic conditions associated with global changes and, as a result, regional climate. The assessment of possible changes in the annual and seasonal runoff of the Oka River basin (to the final alignment – the city of Kaluga, with a basin area of 54,900 km2 ) in the first half of the 21st century is carried out. In assessing changes in the river flow of the Oka basin for the future period, the method of trends (trends) is used, based on the identification of cycles in fluctuations in hydrological characteristics and unidirectional trends (trends) inherent in individual phases (ups and downs) of these cycles, as well as to the establishment of functional (correlation) relationships between environmental factors (climatic, anthropogenic) and the nature of the response (river flow). In this case, the trend model serves as an alternative to the homogeneity hypothesis of long-term fluctuations in river flow. The change in the future values of the river flow of the Oka basin was estimated using averaged data of 30-year periods of time characterized by relative stationarity of climatic and hydrological conditions. The dynamics of the average 30-year values of the annual runoff in the upper reaches of the Oka River (the closure target is the city of Kaluga for the period 1881/1882–2011/2012) is considered. Possible forecasted mean annual values of the annual flow of the Oka River for the first half of the 21st century are obtained

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6

ISMAIYLOV, G. KH, N. V. MURASCHENKOVA, and I. G. ISMAIYLOVA. "ESTIMATION OF LONG-TERM CHANGES IN QUALITATIVE CHARACTERISTICS OF THE OKA RIVER RUNOFF." Prirodoobustrojstvo, no. 5 (2021): 98–104. http://dx.doi.org/10.26897/1997-6011-2021-5-98-104.

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The results of the analysis and assessment of long-term changes in the qualitative characteristics of the Oka River runoff are presented. To analyze the temporal dynamics of the variability of the average annual and maximum concentrations of pollutants in the runoff of the Oka River, we used long-term observational data on typical pollutants for the period 1984-2019. The assessment of the state of the quality of surface waters of the Oka River was carried out according to the values of the concentrations of pollutants in the upper, middle and lower reaches of the river. The dynamics of the main pollutants of the following indicators is considered: ammonium nitrogen, oil products, copper and zinc compounds and easily oxidized organic substances. It was found that in the upper reaches of the river (according to observations of the Oka – Orel city) the main pollutants are ammonium nitrogen and copper compounds, the average annual concentrations of which respectively increased to 9 values. A similar situation was observed downstream of the river (the Oka River – Kaluga city). As a result of the analysis, it was revealed that more noticeable changes in the concentration of pollutants are observed in the section of the river from the city of Murom to the city of Dzerzhinsk. Near the city of Murom, the content of oil products in the water sharply increases. From the beginning of the study period (1984) and until 1995, the average annual concentration varied from 5 to 30 values, and the maximum concentration in the year in creased to 87 values. After 2000, the content of oil products in water dropped sharply and the average annual value did not exceed 3 values, and the maximum concentration was 4-6 values. The paper analyzes the frequency of cases of exceeding the maximum permissible concentrations of pollutants in the Oka River in the mouth of the river. There was a high repeatability of the content of copper compounds in water, which varied from 70 to 88%. The frequency of cases of excess of easily oxidized organic matter in the mouth of the Oka River varied from 64 to 74%. Relatively low, although stable, the repeatability of the content of oil products in water remained, which ranged from 23 to 42%.

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S.S., Smelova, and Zakharchenko Iu.Iu. "The geomorphology of «Protopopovskiy» landslide in the valley of the Oka river (in the city of Kolomna, Moscow region)." Ekologiya i stroitelstvo 4 (2018): 11–17. http://dx.doi.org/10.35688/2413-8452-2018-04-002.

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This article is devoted to the development of the slope processes in the Oka river valley in the city of Kolomna. There are considered the modern ecological and engineering-geological condition of floodplain terraces in the city quarter of Kolychevo. The aim of the work was to study the geomorphology of landslide processes. There is considered the identification of the causes of landslides in the Oka river valley. The is considered the identification of representatives of fossil fauna of organogenic limestones of the left Bank of the Oka river to. In this paper, for the first time the «Protopopovskiy» landslide is described in the scientific literature.

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Diakonov, K. N., P. I. Pylenok, and T. I. Kharitonova. "Water regime of the Oka river floodplain under climate change as a factor limiting nature management." Lomonosov Geography Journal 79, no. 5, 2024 (2024): 162–70. https://doi.org/10.55959/msu0579-9414.5.79.5.14.

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Based on the long-term studies of water regime of the Oka River floodplain and its left tributary, the Pra River, the data on maximum water levels during the floods at the Ryazan gauging station have been summarized. According to the series of observations a downward trend in the maximum water level from 1945 to 2010 was revealed. During the years of maximum spring floods, backing of the Pra River by the Oka River waters reaches a distance of more than 160 km upstream. In 1997 the Oka floodplain was for the first time not flooded with water. An increase in average annual air temperatures has been established since the mid-1970s. The decrease in flood levels could be also attributed to the increase in water withdrawal and water consumption in Moscow and other large cities, as well as high water losses in housing and communal services, amounting to more than 20%. The effects of changes in the water regime of landscapes adjacent to the middle and lower reaches of the Pra and Oka rivers, such as decreasing water level in wells in the rural settlements, or increasing fire danger (example – 2010), are described. It was found that in the years of high floods the productivity of potential pastures and hayfields in the Pra River basin (Vozhskaya drainage system) is 28,2% higher than in the years of low spring floods, and the number of the latter is on the rise. A list of interrelated socio-economic problems caused by climate warming and changes in water regime is given. As a result of climate warming, the European part of Russia, in particular the Ryazan region, is experiencing a change in hydrometeorological parameters that affects the hydrological regime of the Oka River, leads to the drying out of floodplain agricultural landscapes and constrains the use of natural resources. In the reclamation sphere, one can expect lower need for drainage and the decrease in such drainage parameters as the drainage rates and inter-drain distances, with simultaneously increasing need for irrigation and an increase in the parameters of irrigation systems, such as irrigation rates, water intake volumes, etc. Both climatic and anthropogenic factors have limited the conditions and the scope of nature management in such spheres as water use, river navigation, recreation and river tourism. Their restoration will require significant investments.

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Rozhkov, Vyacheslav. "Saami component in medieval history and toponymy of the Volga-Oka interfluve." OOO "Zhurnal "Voprosy Istorii" 2020, no. 11-2 (2020): 82–98. http://dx.doi.org/10.31166/voprosyistorii202011statyi47.

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The article considers the reasons for the difficulties of etymologization ancient ethnic and geographical names of the Volga-Oka interfluve. Shows the historical background and general foundations of a number of ethnonyms, ethnotonyms and toponyms (Saami, Merya, Murom, Chud, Lob river, Ruza river, Moskva River, Moscow, Mozhaisk, Kolomna, etc.). The author presents a set of identical names of the Volga-Oka interfluve and places of established settlement of the Saami. The facts and substantiations presented in the article lead to the conclusion about the existence on the territory of the Volga-Oka interfluve before the appearance of the Slavs of regional toponymy based on the Sami and, possibly, the near Finno-Ugric languages.

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Vorob’ev, A. Ju, A. S. Kadyrov, D. S. Lokteev, E. V. Burgov, and A. A. Balobina. "Calculation of Seasonal Erosion on the Oka River Riverbanks Using Geodetic Modeling." Известия Русского географического общества 155, no. 2 (2023): 25–43. http://dx.doi.org/10.31857/s0869607123020088.

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Abstract—Directed erosion of riverbanks stands out among the dangerous geomorphological processes on large lowland rivers. In the middle reaches of the Oka river, horizontal channel deformations make a significant contribution to regional lithodynamics and the reduction in the area of floodplain lands. We carried out field geological and geomorphological studies in the valley of this large tributary of the Volga, which revealed the complex facies architecture of the floodplain. The forecast for riverbank erosion near the city of Ryazan has recently declined due to the unstable water regime of the Oka river. For a detailed assessment of the consequences of destabilization of the coastal slopes, their surface was surveyed using a total station and aerial photography from a UAV. Regular observations of erosion by the seasons of the hydrological year allowed us to obtain actual data on the redistribution of soils along the height of the slope. We have found that erosion in summer low water is three times weaker than during high water. The predominance of collapses of the uppermost (0.0–2.0 m from the day surface) part of the erosion fronts was also revealed. The article also discusses possible reasons for the mobilization of the geological filling of the river bank, arising from local differences in the Pleistocene-Holocene evolution of the morpholithic system of the Oka river floodplain and the fixation of geological information in it.

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Dissertations / Theses on the topic "Oka River"

1

Shaw, Gordon W. "Oak regeneration in former crop fields in the Missouri river floodplan /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426103.

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Bialecki, Margaret B. "A Dendrochronological Assessment of Overcup Oak (Quercus lyrata) and Oak Response to Flooding in a Bottomland Hardwood Forest." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1967911791&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Kramer, Matthew J. Dwyer John P. Ponder Felix. "Fertilizer effects on soil pH, soil nutrients, and nutrient uptake in swamp white and pin oak seedlings on an alkaline Missouri River bottomland." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5727.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on September 25, 2009). Thesis advisors: Dr. John Dwyer, Dr. Felix Ponder, Jr. Includes bibliographical references.

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Plassmeyer, C. J. Van Sambeek J. W. Eivazi Frieda. "Seasonal variation in nutrient availability and uptake by oak saplings following four nitrogen treatments on Missouri River floodplain." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5712.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 2, 2009). Thesis advisors: Dr. J. W. Van Sambeek, Dr. Frieda Eivazi. Includes bibliographical references.

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Ulrich, Nathan D. 1977. "Restoring oak habitats in the Southern Willamette Valley, Oregon: A multi-objective tradeoffs analysis for landowners and managers." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/11087.

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xvii, 160 p. : ill. (some col.) A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>Restoring oak habitats is an emerging conservation priority in Oregon's Willamette Valley. Both private and public landowners face multiple challenges to conservation and restoration of oak habitats, including a lack of knowledge about the potential tradeoffs and constraints for achieving multiple priorities on a given site. This study simulated 25 alternative oak habitat restoration scenarios to develop estimates of outcomes related to six different restoration priorities: costs, income potential, habitat value, scenic quality, fire hazard reduction potential, and time requirements. Model results indicated that initial land conditions strongly influence a landowner's ability to optimize among these different priorities. To assist landowners with decision-making, model estimates were organized into a digital decision matrix that communicates advantages and tradeoffs associated with each alternative scenario. In doing so, it aims to help landowners choose restoration goals that better meet their broader needs and objectives.<br>Committee in Charge: Dr. Bart Johnson, Chair; Dr. Robert Ribe

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Lloyd, Karen G. Teske Andreas. "Microbially-driven methane and sulfur cycling in a Gulf of Mexico methane seep and the White Oak River estuary." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2570.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2009.<br>Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Marine Sciences." Discipline: Marine Sciences; Department/School: Marine Sciences.

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Franks, Jessica L. "Spatial and Temporal Influences of Water Quality on Zooplankton in Lake Texoma." Thesis, University of North Texas, 2000. https://digital.library.unt.edu/ark:/67531/metadc2532/.

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Seventy-one aquatic species including the copepodids and nauplii were identified from Lake Texoma from August 1996 to September 1997. Zooplankton community structure, abundance and spatial and temporal distributions were compared among five lake zones delineated a priori based on chloride concentration. The zones, in order of decreasing chloride concentration, are the Red River zone (RRZ), Red river Transition zone (RRTZ), Main Lake zone (MLZ), Washita River Transition zone (WRTZ) and Washita River zone (WRZ). Bray Curtis Similarity Index showed community structure was most similar in the two Red River arm zones, the two Washita River arm zones and the MLZ. Zooplankton abundance was greatest in the Red River arm (312 org/L), intermediate in the Washita River arm (217 org/L) and least in the Main Lake body (103 org/L). A significant increase in the abundance of a deformed rotifer, Keratella cochlearis, was observed mainly in the Red River arm during a second study from March 1999 to June 1999. Seasonal dynamics, rather than spatial dynamics, were more important in structuring the zooplankton community, especially in the two river arms. Spatial variance was solely attributed to station and zone effects independent of time for a few crustacean species and many of the water quality parameters supporting the presence of longitudinal gradients of differing water quality. Three independent models (Red River arm, Washita River arm, Main Lake body) rather than a single model for the entire reservoir, best describe patterns in the zooplankton community and its relationship to seasonal, physical and chemical factors. Statistical power, sample size and taxonomic resolution were examined. When monitoring seasonal and annuals trends in abundance, the greatest statistical power was achieved by analyzing count data at taxonomic levels above genus. Taxonomic sufficiency was assessed to determine if costs could be reduced for zooplankton identifications. For water quality monitoring purposes only, it is recommended that genus identifications are sufficient if supplemented with quarterly species identifications.

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García, Iturbe Selma L. "Simulation of physical and chemical processes in reservoirs: Two case studies." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc4968/.

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Managing water quality aspects requires the use of integrative tools that allow a holistic approach to this problem. Water quality models coupled to hydrodynamic models are these tools. This study presents the application of the water quality model WASP coupled to the hydrodynamic model DYNHYD for two distinct reservoirs: Lake Texoma and Tocoma Reservoir. Modeling the former included simulations of water velocities, water level, and four chemical and physical compounds: chlorides, dissolved oxygen (DO), biochemical oxygen demand (BOD), and total suspended solids (TSS); and validation of the results by comparing with observed values during March - May, 1997. The latter is still under project status and the simulation was performed in a prospective way. The analysis included simulations of water velocities under current and for expected conditions, DO and BOD. Both models, DYNHYD and WASP, fitted pretty well to observed conditions for Lake Texoma and for where Tocoma Reservoir has been planned. Considering management and decision support purposes, the role of boundary and loading conditions also was tested. For Lake Texoma, controlling boundary conditions for chlorides is a determinant factor for water quality of the system. However, DO and TSS in the reservoir are governed by additional process besides the condition of the boundary. Estimated loadings for this system did not provided significant effects, even though the allocation of a load for chlorides resulted in significant changes in the trend for expected chloride concentrations at the Washita River Arm of Lake Texoma. For Tocoma Reservoir, the expected concentration of DO all over the reservoir is going to driven by boundary conditions, as well as by the management of autochthonous BOD loadings provided by vegetation decomposition. These two factors will be determinant for the resulting water quality of the future reservoir.

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Mor��t, Stephanie L. "An assessment of a Stream Reach Inventory and Channel Stability Evaluation : predicting and detecting flood-induced change in channel stability." Thesis, 1997. http://hdl.handle.net/1957/33845.

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Pre-flood (1995), and post-flood (1996) channel stability surveys were conducted on 22 reaches along Oak Creek, Benton County, Oregon in an effort to note if the flood of February 1996 altered the channel and if the channel stability survey that was being used accurately predicted the channels resistance to change resulting from a flood. The channel stability survey that was used was the method described in the 'Channel Stability Evaluation and Stream Reach Inventory' designed by the USDA Forest Service, Northern Region, in Colorado (Pfankuch, 1978). This was a non-parametric study, based on an opportunity to reoccupy survey locations from a previous study. A model was proposed to describe the 1995 ratings as predictions for change should a flood event occur. This predicted change was compared to the actual change that occurred as a result of the 1996 flood in order to test the surveys ability to accurately predict change. Changes in the survey totals, the 15 channel stability indicator items that compose the survey, and the sediment distribution were evaluated within and between years at the reach, station and stream scale. An increase in the percentage of fine gravel occurred at all scales when post-flood and pre-flood sediment distribution was compared. Except for an increase in fine gravel, the stream remained similar to its pre-flood state. In 1995, the stream's channel stability was rated as 'fair', indicating that a moderate amount of change should take place if a flood occurred. The 1995 predictions for change did not match the actual change observed after the February 1996 flood at the three scales when defined by the survey totals. When independently evaluating the fifteen individual channel stability indicator items, a considerable amount of change was detected at the reach level. Although change occurred in the indicator items at each reach, the stream average for each of the independent indicator items was similar between the two years. This may indicate that, although change occurred at the reach level, the stream maintained its physical diversity after the flood. The survey method was unable to accurately predict changes to Oak Creek incurred by the February 1996 flood when viewed at the entire stream level, yet it may be more applicable at the reach level when viewing specific changes to channel stability indicator items. In general, the Stream Reach Inventory and Channel Stability Evaluation is designed for observational efficiency but does not have sufficient scientific basis or measurement precision to accurately predict the extent or type of channel change.<br>Graduation date: 1998

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10

Mwihomeke, Mickfanaka. "The assessment of the impact causuarina cunninghamiana miq. (river-she-oak) windbreak on macadamia trees orchards in Limpopo Province, South Africa." Diss., 2013. http://hdl.handle.net/11602/127.

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Books on the topic "Oka River"

1

Nikolaĭ, Rodin, ред. Okskie parakhodchiki: Dokumentalʹnai͡a povestʹ. Izdatelʹ Sitnikov, 2010.

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Quality, North Carolina Division of Water. White Oak River basinwide water quality management plan. The Section, 1997.

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Outen, Lon D. Hortons on Lynches River and Red Oak Woods Plantation. L.D. Outen, 1989.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Studley, Seth E. Changes in high-flow frequency and channel geometry of the Neosho River downstream from John Redmond Dam, southeastern Kansas. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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Book chapters on the topic "Oka River"

1

Gandelsman, Igor, and Artem Gandelsman. "Stability of the Right-Bank Slope of the Oka River." In Lecture Notes in Civil Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30570-2_5.

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Syrovatko, Alexander S., Natalia Svirkina, and Liudmila Plekhanova. "Evidence of bear remains in a cremation burial in the Moscow region (Burial 5, Kremenye burial ground on the upper river Oka, 12^th century)." In Bear and Human. Brepols Publishers, 2023. http://dx.doi.org/10.1484/m.tane-eb.5.134354.

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Matheson, Jonathan. "The Free-Rider Objection." In Why It's OK Not to Think for Yourself. Routledge, 2023. http://dx.doi.org/10.4324/9781003369004-6.

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Gremm, T., A. Heidt, F. Frimmel, V. Yashin, A. Mytryukhin, and V. Rainin. "Water-Quality Monitoring in Russian Rivers: Results of a Case Study on the Pollution Situation of the Rivers Moskva and Oka." In Water Resources Quality. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56013-2_6.

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Lachenal, Thibault. "From Lagoon to River: Bank Management at the Submerged Late Bronze Age Settlement of La Motte (Agde, France)." In Natural Science in Archaeology. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-52780-7_2.

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AbstractThe La Motte 1 site (Agde), submerged in the bed of the Hérault River, corresponds to a settlement from the end of the Bronze Age initially established on the edge of a lagoon that is now clogged. The site is characterised by more than 500 wooden piles divided into two main groups located on shoals. The use of varied species attests to the exploitation of distinct environments such as Mediterranean mixed oak forestsandriparian forests. Moreover, the spatial analysis illustrates the presence of several coherent alignments that use a specific species. The excavation trenches dug support the interpretation thereof as systems for bank maintenance and protection via different techniques: wattle made from the strawberry treeon oak piles, and possible live stakes made of willow. The study of the goods and radiocarbon dating show the successive installation of these systems between the 10th and the beginning of the 8th centuries BC. The goal of the various technical solutions was to protect the areas around the settlementfrom erosion. Their use must therefore be examined in the light of the changes in their immediate surroundings, which saw a rise in the sea level coupled with a progressive filling of the delta of the Hérault. This case study thus illustrates the capacity to adapt and the vulnerability of the populations of the Bronze Age in the face of changes in a particularly sensitive environment.

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Zerkal, Oleg V., and Olga S. Barykina. "Suffosion Landslides as a Specific Type of Slope Deformations in the European Part of Russia." In Progress in Landslide Research and Technology, Volume 1 Issue 2, 2022. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18471-0_8.

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AbstractLandslide classification systems are based on the analysis of mechanisms of slope deformation and consideration of landslide-forming earth materials. The main types of landslide movement are fall, topple, slide, spread and flow. Within the European part of Russia, a specific type of slope deformation is often observed, where suffosion (the process of washout and mechanical removal of fine particles from saturated soils under the influence of infiltrating groundwater flow) plays an essential role. Suffosion landslides are defined as a type of complex landslide formed in regions characterized by alternating horizons of unsaturated and saturated sands, loams and clays. Such hydrogeological conditions occur in the European part of Russia, most of which is occupied by the East European Plain. In the East European Plain, suffosion landslides are confined to the valleys of large rivers and their tributaries (Volga, Oka, Don, etc.), where their volumes can reach several million m3. In the Volgograd and Moscow regions, suffosion can result in soil decompaction at the base of slopes, or the formation of underground cavities in massifs, niches and grottoes on slopes, ultimately leading to the formation of suffosion landslides. Suffosion landslides are complex displacements of waterlogged soil masses formed as a result of suffosion and the subsequent associated collapse of the sides of suffosion cavities and niches. Indicators of suffosion landslides are: (1) the presence of a prograding fan of finely dispersed material at the base of slope and adjacent terrain, whose boundaries often exceed the landslide limits; and (2) a large number of ledges of different sizes on the surface of the landslide body created by uneven settling of blocks into the roof of suffosion cavities, and on the sides of suffosion niches. Suffosion landslides are often elongated, horseshoe-shaped, or ∞-shaped with a narrowing in the central part formed in saturated soils breaching from an underground suffosion cavity. Suffosion landslides do not have a marked sliding surface. Rather, soil displacement occurs over layers with strongly dispersed groundwater. The displacement rate of such landslides depends on the scale and speed of development of mechanical suffosion at the base of the slope.

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Mateos, E., and J. Edeso. "Estimation of residue biomass in the Oka river basin (Spain)." In WASTES 2015 – Solutions, Treatments and Opportunities. CRC Press, 2015. http://dx.doi.org/10.1201/b18853-24.

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Pylenok, P. I., та G. I. Yershova. "ПРИРОДООХРАННЫЙ РЕЖИМ УВЛАЖНЕНИЯ ОСУШАЕМОЙ АЛЛЮВИАЛЬНОЙ ПОЧВЫ С УТИЛИЗАЦИЕЙ ДРЕНАЖНЫХ ВОД". У НАУЧНО-МЕТОДИЧЕСКОЕ ОБЕСПЕЧЕНИЕ РАЗВИТИЯ МЕЛИОРАТИВНО-ВОДОХОЗЯЙСТВЕННОГО КОМПЛЕКСА. ФГБНУ «ВНИИГиМ им. А.Н. Костякова», 2020. http://dx.doi.org/10.37738/vniigim.2020.18.75.024.

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Представлены результаты исследования по утилизации дренажных вод для увлажнения осушаемой аллювиальной почвы в пойме р. Оки в гидрометеорологических условиях 2019года. Было проведено два полива нормой 45 мм, что позволило повысить урожай картофеля сорта Метеор на 4,72 т/га, или на 20,7. Предложены рекомендации производству.The results of a study on the utilization of drainage water to moisten the drained alluvial soil in the floodplain of the Oka river in hydrometeorological conditions in 2019 are presented. Two 45 mm irrigation was carried out, which increased the yield of meteor potatoes by 4.72 t/ha, or 20.7 . Recommendations for production are offered.

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Krenke, Nikolay, Ekaterina Ershova, Andrey Voitsik, Alexey Kasparov, Mikhail Lavrikov, and Vera Raeva. "Archaeological reconnaissance at the mouth of Sulat’ River (the study of landscape dynamic and history of land-use within Zabolotskoe lake in late Holocene)." In SITE ZAMOSTJE 2 AND LANDSCAPE EVOLUTION IN THE VOLGA-OKA REGION DURING THE HOLOCENE. Institute for the History of Material Culture Russian Academy of Science, 2018. http://dx.doi.org/10.31600/978-5-9909872-8-9-2018-166-184.

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Kudryavtsev, Boris. "Settlements and adjacent areas in the region of the Zabolotskoye lake and right bank of the Dubna River in XVI-XVIII centuries: historical reference." In SITE ZAMOSTJE 2 AND LANDSCAPE EVOLUTION IN THE VOLGA-OKA REGION DURING THE HOLOCENE. Institute for the History of Material Culture Russian Academy of Science, 2018. http://dx.doi.org/10.31600/978-5-9909872-8-9-2018-185-206.

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Conference papers on the topic "Oka River"

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Wiersma, B. J., J. I. Mickalonis, K. H. Subramanian, and A. G. Hansen. "Corrosion Testing of Carbon Steel in Oxalic Acid That Contains Dissolved Iron." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02355.

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Abstract Radioactive liquid waste has been stored in underground carbon steel tanks for nearly 60 years at the Savannah River Site (SRS). The site is currently in the process of removing the waste from these tanks in order to place it into vitrified, stable state for longer term storage. The last stage in the removal sequence is a chemical cleaning step that breaks up and dissolves metal oxide solids that cannot be easily pumped out of the tank. Oxalic acid (OA) will be used to chemically clean the tanks after waste retrieval is completed. The waste tanks at SRS were constructed from carbon steel materials and thus are vulnerable to corrosion in acidic media. In addition to structural impacts, the impact of corrosion on the hydrogen generated during the process must be assessed. Electrochemical and coupon immersion tests were used to investigate the corrosion mechanism at anticipated process conditions. The tests were conducted at OA concentrations between 2.5 and 8 wt.% and at temperatures between 60 and 75 °C. In general, the corrosion rates increased with temperature and oxalic acid concentration. The testing also showed that the corrosion rates were dependent upon the reduction of the iron species that had dissolved in solution. Initial corrosion rates in 8 wt.% OA at 75 °C were approximately 140 mpy (3.6 mm/yr) due to the reduction of the ferric species to ferrous species. After 4 weeks, as the ferric species depleted, the corrosion rate at this condition decreased to approximately 30 mpy (0.75 mm/yr). On the other hand, as the electrochemical tests demonstrated, the hydrogen evolution reaction became more dominant at these later times.

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Kazakova, M. V. "RECREATIONAL FORESTS OF RYAZAN IN THE FLOODMAIN OF THE OKA RIVER." In Рекреационные нагрузка на городскую экосистему: оценки, риски, пределы. Издательство Московского университета, 2024. https://doi.org/10.55959/msu012129-2-2024-8-120-127.

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Рассмотрены два самых крупных городских леса Рязани, расположенные в пойме Оки — Луковский лес и Лесопарк. Обоснована роль древесной растительности в поддержании эколого-геохимической устойчивости природных ландшафтов. Иммобилизация химических элементов в приросте древостоя обеспечивает их долговременное изъятие из миграции. Даются средние оценки годового прироста Quercus robur L. в сообществе Луковского леса (2,60 мм/год) в сравнении с зональными лесными экосистемами Рязанской области (1,43– 2,19 мм/год). Потенциальная устойчивость лесных пойменных ландшафтов к химическому загрязнению в среднем в 1,4 раза выше, чем устойчивость зональных лесных сообществ. Важная геохимическая функция поймы, в первую очередь, реализуется через канализирование воздушной миграции техногенных элементов. Дается оценка санитарного состояния Луковского леса. Видовое богатство сосудистых растений Лесопарка (295 видов) значительно превышает таковой показатель Луковского леса (191 видов). Показана важность мониторинговых исследований в городских рекреационных лесах.

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Milovanov, Sergei, and Anastasia Shvetzova. "The single burial of the Fatyanovo culture near the mouth of the Oka River (2019 research results)." In Actual Archaeology 5. Institute for the History of Material Culture Russian Academy of Sciences, 2020. http://dx.doi.org/10.31600/978-5-907298-04-0-2020-227-230.

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Воробьев, А., В. Кривцов, and А. Водорезов. "STRUCTURE OF QUATERNARY SEDIMENTS IN THE VALLEY OF OKA RIVER IN THE SOUTHEASTERN PART OF THE MESHCHERA LOWLAND." In Геосфера. Современные проблемы естественных наук. Baskir State University, 2022. http://dx.doi.org/10.33184/gspen-2022-03-31.1.

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Шишков, В. А., А. С. Сыроватко, and А. А. Гольева. "THE CHEMICAL ANALYSIS OF ARTEFACTS AND CASTING WASTE FROM THE EARLY IRON AGE SETTLEMENTS ON THE MIDDLE OKA RIVER." In Материалы 23–25-го заседаний научно-методического семинара «Тверская земля и сопредельные территории в древности». Crossref, 2024. https://doi.org/10.70203/4165.2024.56.59.013.

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Химический анализ артефактов, полученных при обследовании двух городищ раннего железного века – «Чайка» и Свиридоново III (правый берег р. Оки в Московской области) – проведён с применением растрового электронного микроскопа и энергодисперсионного анализатора элементного состава. Анализ продемонстрировал, что в сплавах оловянистой или оловянисто-свинцовой бронзы присутствуют примеси фосфора и серы, причём только в одном случае зафиксировано сочетание серы и фосфора в одном предмете, что трактовано как маркёры разных источников руды. Авторы, однако, не исключают, что сера и фосфор могли быть введены в сплав в составе флюсов и указывают на разнообразие технологических приёмов бронзового производства. В некоторых случаях отмечен принципиально разный химический состав слоя на поверхности предмета и внутри, что авторы объясняют наличием декоративного покрытия оловом или свинцом. Chemical analysis results of items were received with a scanning electron microscope and energy dispersive spectroscopy of elemental analysis. The artefacts were obtained during the investigation of two Early Iron Age hillforts: ‘Chaika’ and Sviridonovo III (the right bank of the Oka River, Moscow Region). The analysis shows phosphorus and sulfur impurities, which almost never come together, in tin and tin-lead bronze alloys. The phenomenon is interpreted as markers of different ore sources. This does not exclude the fact that sulfur and phosphorus could be added to the alloy as part of fluxes and that they indicate the diversity of bronze production techniques. Diverse alloy composition is also observed in some cases on the surface and inside the artefact that is explained by the tin or lead decorative coating.

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Сыроватко, А. С., В. А. Шишков, and А. А. Гольева. "A new Early Iron-Age settlement on the Middle Oka river, along with the first results of chemical analysis of the collection." In Археология Подмосковья: Материалы научного семинара. Crossref, 2019. http://dx.doi.org/10.25681/iaras.2019.978-5-94375-272-8.15-20.

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This article provides a description of the recently-excavated settlement (hillfort). Results of a chemical analysis of the metal finds recovered are given, obtained with an electron microscope. According to these results, preliminary data is presented for the metal objects, which were made as ornaments from tin-lead bronze.

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ФЕДОРОВА, Л. И., В. А. ТКАЧЕНКО, and В. В. ФЕДОРОВ. "Concerning Ceramic Anthropomorphic Toys Found in Kaluga Region." In Тверь, тверская земля и сопредельные территории в эпоху средневековья. Crossref, 2019. http://dx.doi.org/10.25681/iaras.2018.978-5-9906508-3-1.388-392.

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Изготовление керамических игрушек в Калуге, вероятно, осуществлялось как побочный продукт гончарного ремесла. Среди 36 калужских антропоморфных игрушек в основном находки, обнаруженные при сносе домов в старой части г. Калуги или собранные в качестве подъемного материала с берега р. Оки, в районе локализации старой Калужской крепости. Особый интерес представляет находка 2015 г. в д. Батурлино Юхновского района Калужской области фрагмента поливной фигурки «баба» с датой «1899 г». It is likely that ceramic toys making in Kaluga was carried out as pottery by-product. There were 36 Kaluga anthropomorphic toys found basically while housebreaking in the old town of Kaluga or collected as findings lifted from the bank of Oka River on the territory of the old Kaluga fortress. A fragment of glazed ceramic figure «baba» bearing date «1899» found in 2015 in Baturlino village of Ukhnovsky district in Kaluga region is an item of special interest.

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Иванов, Д. А. "THE STONE AXES FROM THE COLLECTION OF RYAZAN’ HISTORICAL AND ARCHITECTURAL MUSEUM-RESERVE." In Материалы 23–25-го заседаний научно-методического семинара «Тверская земля и сопредельные территории в древности». Crossref, 2024. https://doi.org/10.70203/8216.2024.80.63.019.

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Каменный топор является одним из основных и древнейших орудий труда, воплощавшим в себе рабочий инструмент, оружие и символ власти. Настоящая работа представляет собой обзор всех каменных топоров, хранящихся в собрании Рязанского историко-архитектурного музея-заповедника, важного археологического источника для изучения эпох камня и палеометалла, в первую очередь для Среднего Поочья и всего Волго-Окского междуречья. В статье содержится история формирования коллекции, приведены описание и основные характеристики отдельно по разновидностям и типологии каменных топоров с привязками каждой группы к водным объектам гидрографической сети Рязанской области. Картографирование мест находок каменных топоров показало, что подавляющее большинство их концентрируется вдоль главной водной артерии региона – реки Оки и по всем её крупным правобережным притокам в зоне распространения серых лесных почв. Среди сверлёных топоров преобладают типы, характерные для балановских древностей, небольшую долю составляют топоры, являющиеся определяющими для верхневолжских фатьяновцев. The stone axe is one of the main and oldest tools of labor, being at the same time a tool, a weapon and a symbol of power. This work is an overview of all the stone axes stored in the collection of the Ryazan’ Historical and Architectural Museum-Reserve, an important archaeological source for the study of the stone and paleometallic periods, primarily for the Middle Pooch’ye and the entire Volga-Oka interfluve. The article contains the history of the formation of the collection, a description and basic characteristics are given separately according to the varieties and typology of stone axes with links of each group to the water objects of the hydrographic network of the Ryazan’ region. Mapping of the sites of finds of stone axes has shown that the vast majority of them are concentrated along the main waterway of the region – the Oka River and along all its major right-bank tributaries in the area of gray forest soils. Among the drilled axes, the types characteristic of the Balanov antiquities predominate, a small proportion are axes that belong primarily to bearers of the Upper Volga Fatyanovo Culture.

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Иванов, Д. А. "THE COMPLEX OF MATERIALS OF THE FATYANOVO-BALANOVO COMMUNITY FROM THE GLEBOVO-GORODISHCHE 11 SETTLEMENT ON THE VOZHA RIVER." In Материалы 23–25-го заседаний научно-методического семинара «Тверская земля и сопредельные территории в древности». Crossref, 2024. https://doi.org/10.70203/3955.2024.54.98.020.

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Настоящая публикация вводит в научный оборот комплекс материалов т. н. фатьяновско-балановской культурно-исторической общности с поселения Глебово-Городище 11, расположенного в среднем течении р. Вожи (правого притока р. Оки). Собрание находок состоит из фрагментов глиняной посуды, каменных орудий и отходов их производства. Анализ керамической коллекции позволил выделить две основные рецептуры формовочных масс сосудов: с использованием добавок шамота и с использованием дресвы, при этом последняя является преобладающей. Форма и орнаментация сосудов находят широкие аналогии среди атликасинских древностей Среднего Поволжья. Отмечается высокий процент крупной неорнаментированной посды. Кремнёвый инвентарь состоит из наконечника стрелы треугольно-черешковой формы, скребка, скобелей, нескольких невыразительных орудий и сколов и отщепов. Для изучения хозяйственной деятельности интересны фрагменты каменных шлифовальных плит и пест-тёрочник. Предположительно поселение Глебово-Городище 11 можно включить в круг памятников, которые могут являться подосновой складывания средневолжских балановско-атликасинских древностей. This publication introduces into scientific circulation a complex of materials from the so-called Fatyanovo-Balanovo cultural and historical community from the settlement of Glebovo-Gorodishche 11, located in the middle reaches of the river Vozha (right tributary of the Oka River). The collection of finds consists of fragments of pottery, stone tools and waste from their production. The analysis of the ceramic collection made it possible to identify two main formulas for the vessels molding masses: using fireclay additives and using gruss, with the latter being predominant. The shape and ornamentation of the vessels show broad analogies among the Atlicasin antiquities of the Middle Volga region. A high percentage of large, unornamented dishes are discarded. The stone implements consist of a triangular-shape flint arrowhead, a scraper and several featureless tools. Fragments of grinding plates and a trowel pestle are of interest for studying economic activity. Presumably, the settlement of Glebovo-Gorodishche 11 can be included in the circle of monuments that may form the basis for the composition of the Middle Volga Balanovo-Atlicasin antiquities.

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Сыроватко, А. С., and В. П. Гусева. "A NEW FORM OF FUNE RAL RITES IN THE SOKOLOVA PUSTYN’: THE GREAT MIGRATION PERIOD OR THE “DARK AGES”?" In Материалы 23–25-го заседаний научно-методического семинара «Тверская земля и сопредельные территории в древности». Crossref, 2024. https://doi.org/10.70203/4989.2024.19.38.029.

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В статье публикуются материалы исследования двух погребений. Это кремации, захороненные на могильнике Соколова Пустынь 2 второй половины X – начала XI в. н. э. (левый берег р. Оки, возле г. Ступино). Погребение 21 типично для периферии могильника: небольшая порция костей была уложена на древнюю поверхность или в небольшую ямку. Инвентарь отсутствовал. Погребение 20 представляло собой редкий тип кремации в глубокой яме. Артефакты из ямы относятся к слою мощинской культуры (III–V вв. н. э.) и перекрывают погребение. Связь вещевого инвентаря и керамики с костями не выявлена. В обоих погребениях удалось определить видовой состав животных, сожжённых вместе с человеком: в погребении 21 это неродившийся или молочный поросёнок; в погребении 20 – корова. The article publishes materials from the study of two burials. These are cremations buried at the Sokolova Pustyn’ 2 burial ground in the second half of the X – early XI c. AD (left bank of the Oka River, near the city of Stupino). Burial No. 21 is typical for the periphery of the burial ground: a small portion of bones was placed on an ancient surface or in a small hole. There was no inventory. Burial No. 20 was a rare type of deep pit cremation. Artifacts from the pit belong to the Moshchino culture layer (III–V cc. AD) and cover the burial. The connection of artifacts and ceramics with bones has not been identified. In both burials, it was possible to determine the species composition of the animals burned along with the human: in burial 21 these were unborn or suckling pigs; in burial 20 – a cow.

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Reports on the topic "Oka River"

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Brown, Willie, John Richards, George Gallarno, Christopher Morey, Titus Rice, and Jennifer Olszewski. Risk-based prioritization of Operational Condition Assessments : Trinity River and Willamette River case studies. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48352.

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The US Army Corps of Engineers (USACE) operates, maintains, and man-ages over 700 dams and 4,000 miles of levees, providing approximately $257 billion worth of economic benefit to the Nation. USACE employs the Operational Condition Assessment (OCA) process to understand the condition of those assets and allocate resources to minimize risk associated with performance degradation. Understanding risk in flood risk management (FRM) assets requires an understanding of consequence of asset failure from a systemwide FRM watershed perspective and an understanding of likelihood of degradation based on the condition of the low-level components derived from OCA ratings. This research demonstrates a case-study application of a scalable methodology to model the likelihood of a dam performing as expected given the state of its gates and their components. The research team combines this likelihood of degradation with consequences generated by the application of designed simulation experiments with hydrological models to develop risk measures. These risk measures can be developed for all FRM gate assets in order to enable traceable, consistent resource allocation decisions. Two case study applications are provided.

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Cotten, David, Brandon Adams, Nancy O'Hare, et al. Vegetation mapping at Chattahoochee River National Recreation Area: Photointerpretation key and final vegetation map. National Park Service, 2019. https://doi.org/10.36967/2266958.

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The University of Georgia Department of Geography’s Center for Geospatial Research (CGR), with the support of the National Park Service (NPS) Vegetation Mapping Inventory (VMI) Program, described and mapped vegetation at Chattahoochee River National Recreation Area (CHAT). This mapping effort was accomplished through collaboration with the NPS Southeast Coast Network (SECN), the North Carolina office of NatureServe (Durham, N.C.), and Atkins North America, Inc. Through the use of NatureServe vegetation plots, aerial photos, and data collected in the field, vegetation communities were delineated and assigned attributes. Using dominant vegetation classes and secondary vegetation classes as well as modifiers to describe the diversity of species, detailed draft vegetation maps were created for the Chattahoochee River National Recreation Area, both inside the park and within a 500-meter (1,640-foot [ft]) buffer. The buffer polygons and attributes were created on a broader scale using a system based on the Anderson Level II classification scheme, which includes anthropogenic and land use/land cover (LULC) classes. Within the park, the more detailed community element global (CEGL) codes were used. Because of the extensive past land use history, using the National Vegetation Classification System (NVCS) to the association level was challenging. Determining CEGL codes was particularly difficult because the National Vegetation Classification System was designed for relatively undisturbed vegetation communities. Through the use of NatureServe vegetation plots, aerial photos, and data collected in the field, vegetation communities were delineated and assigned attributes. Using dominant vegetation classes and secondary vegetation classes, as well as modifiers to describe the diversity of species, detailed vegetation maps were created for Chattahoochee River NRA, both inside the park and within a 500-meter (1,640-ft) buffer. The buffer size used for this study covered a much larger area than the region found within the park. This illustrates the linear nature of the park and how much it, including the river, is susceptible to land use land cover changes outside of the boundary. Chattahoochee River NRA covers approximately 3,000 hectares (7,413 acres [ac]) while the buffer contains approximately 10,700 hectares (26,440 ac). The majority of land use within the buffer, 57%, is residential. The most common vegetation classes found at Chattahoochee River NRA were Southern Red Oak—White Oak Mixed Oak Forest (7244) and Piedmont Dry—Mesic Basic White Oak—Hickory Forest (7232) with 10.4% and 9.9% of the park respectively. The smallest class was Southern Woolgrass Bulrush Marsh (3866) and Knotweed Pondshore and Ditchbank Vegetation (4966), at less than 0.05% each. Water, covering 19.2 % of the park, represents a higher percentage of area than any vegetation class. A rigorous accuracy assessment was conducted on the 30 map classes within the boundary of the park representing floristic types within the National Vegetation Classification System. Results showed an 82% map accuracy and a kappa rating of 81% using 356 accuracy assessment points. The products of this project include vegetation maps, a photointerpretation key, summary statistics of each vegetation class, and a detailed geodatabase with digital maps.

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Beane, Nathan, and William Tomlinson. Regeneration dynamics of bottomland hardwood sites following prolonged, growing-season inundation. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48776.

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The spring flood of the Mississippi River and backwater areas in 2019 resulted in large-scale flooding and was the longest-lasting flood event since the Great Flood of 1927. This flood event provided a rare opportunity to establish permanent plots in batture and backwater habitats to evaluate forest-stand dynamics following prolonged flooding. In this study, we evaluated postflooding conditions of forest overstory, midstory, and regeneration by establishing permanent plots at four locations subjected to varying amounts of flooding within the Mississippi River batture and the Yazoo–Mississippi Delta backwater region. Our results highlight oak regeneration success following the 2019 flood event as well as the utility and need to establish and monitor permanent plots to increase our understanding of floodplain forest dynamics in regions experiencing prolonged riverine flooding during the growing season.

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Loar, J. M., S. M. Adams, L. J. Allison, et al. Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10106985.

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5

Loar, J. M., S. M. Adams, L. J. Allison, et al. Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5945994.

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6

Boyle, M. Terrestrial vegetation monitoring at Chattahoochee River National Recreation Area: 2021 data summary. National Park Service, 2024. http://dx.doi.org/10.36967/2303257.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the NPS Inventory and Monitoring Program. The vegetation community vital sign is one of the primary-tier resources identi?ed by SECN park managers, and monitoring is conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks? natural vegetation. 2021 marked the ?rst year of conducting this monitoring e?ort at Chattahoochee River National Recreation Area (CHAT). Thirty vegetation plots were established throughout the park from June through July. Data collected in each plot included species richness across multiple spatial scales, species-speci?c cover and constancy, species-speci?c woody stem seedling/sapling counts and adult tree (greater than 10 centimeters [3.9 inches {in}]) diameter at breast height (DBH), overall tree health, landform, soil, observed disturbance, and woody biomass (i.e., fuel load) estimates. This report summarizes the baseline (year 1) terrestrial vegetation data collected at Chattahoochee River National Recreation Area in 2021. Data were strati?ed across two dominant broadly de?ned habitats within the park, including Piedmont Upland Forests and Piedmont Alluvial Wetland Vegetation and three land parcels: North?from Bowman?s Island to Abbotts Bridge, Middle?from Medlock Bridge to Gold Branch, and South?from Sope Creek to Palisades. Noteworthy ?ndings include: 299 vascular plant taxa were observed across 30 vegetation plots, including 29 species not previously documented within the park. The most frequently encountered species in each broadly de?ned habitat included: Piedmont Alluvial Wetland Vegetation: Chinese privet (Ligustrum sinense), sweetgum (Liquidambar styraciflua), eastern poison ivy (Toxicodendron radicans var. radicans), muscadine (Muscadinia rotundifolia var. rotundifolia), and smallspike false nettle (Boehmeria cylindrica). Piedmont Upland Forests: tuliptree (Liriodendron tulipifera var. tulipifera), eastern poison ivy, Virginia creeper (Parthenocissus quinquefolia), cat greenbrier (Smilax glauca), muscadine, mockernut hickory (Carya tomentosa), and black edge sedge (Carex nigromarginta). Sixteen non-native species categorized as invasive by the Georgia Exotic Pest Plant Council (GA-EPPC 2023) were encountered during this monitoring e?ort, including two not previously detected within the park?miniature beefsteak plant (Mosla dianthera) and Chinese holly (Ilex cornuta). Chinese privet and Japanese honeysuckle (Lonicera japonica) were the most frequently encountered and abundant invasive plant within the park. One species of special concern listed for Georgia (GADNR 2024) was observed during this monitoring e?ort?large-fruited sanicle (Sanicula trifoliata). Tuliptree, loblolly pine (Pinus taeda), boxelder (Acer negundo var. negundo), river birch (Betula nigra), and sweetgum were the most dominant species within the tree stratum of Piedmont Alluvial Wetlands of Chattahoochee River National Recreation Area; white oak (Quercus alba), loblolly pine, tuliptree, and mockernut hickory were the most dominant species of Piedmont Upland Forests. Chinese privet was the most abundant species within the sapling and seedling strata of Piedmont Alluvial Wetlands. The mortality rate of green ash (Fraxinus pennsylvanica) within Piedmont Alluvial Wetland plots was high, and it is likely these trees succumbed to impacts from emerald ash borer (Agrilus planipennis). The emerald ash borer is a wood-boring pest of ash (Fraxinus sp.) and is native to Asia. Since its discovery in the U. S. in the early 2000s, the insect has been responsible for the death of tens of millions of ash trees in the eastern and midwestern parts of the country. At this time, it is not certain whether the declining health of ash within Chattahoochee River National Recreation Area is due to emerald ash borer, edaphic factors that are responsible for natural mortality and decline, or other factors. Other threats to native vegetation within the park are: (1) the high prevalence of non-native, invasive plant species; (2) ?re suppression within oak-hickory; and (3) impacts from heavy browse by white-tailed deer (Odocoileus virginianus). All plots monitored during this sampling e?ort are scheduled to be resampled in 2024.

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White, Jonathan. OF-21-03 Geologic Map of the Dry Creek Quadrangle, Delta County, Colorado. Colorado Geological Survey, 2024. https://doi.org/10.58783/cgs.of2103.ovbr9253.

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The Dry Creek quadrangle, situated on the southern flank of Grand Mesa in Delta County Colorado, features high topographic relief with a 1,246.7-m (4,090 ft) variance between its highest and lowest points. The slopes in the upper third of the map area are part of the southern flank of Grand Mesa and are characterized by higher elevations and hummocky, south-facing slopes where landslide deposits overlay Paleogene to Eocene Green River and Wasatch formations. The upper hummocky terrain transitions southward to cliffy mid-elevation sandstone outcrops of the Upper Cretaceous Williams Fork and Iles formations. A regional productive coal interval, the Cameo/Wheeler coal zone, occurs in this interval above the Rollins Sandstone Member of the Iles Formation. In the lower valleys and southern part of the map area, bouldery gravel mantle low-gradient mesa and river terrace surfaces that cover the Upper Cretaceous Mancos Shale. Landslides also occur along steeper slopes of the mesa flanks and terrace risers. The highest elevation of the Dry Creek quadrangle is 3.097.0 m (10,160.8 ft) above mean sea level (AMSL) at the northeast map corner within the Grand Mesa National Forest. The lowest is 1,850.3 m (6,070.5 ft) AMSL at its southwest boundary. The annual precipitation in the map area ranges from about 100 cm (40 in) along the northern map area where alpine forests are predominant, through a mid-elevation semi-arid Gambel oak, pinyon- juniper, woodland climate of the high alluvial mesas, to a low of about 33 cm (13 in) at lower- elevation semi-arid shrublands in the southwest corner of the map area. Seasonal snowpack occurs in the high country of the map area.

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Russell, H. A. J., D. R. Sharpe, and R. W. C. Arnott. Sedimentology of the Oak Ridges Moraine, Humber River watershed, southern Ontario: a preliminary report. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209523.

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9

Loar, J. M., S. M. Adams, and R. D. Bailey. Third report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10149547.

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10

Loar, J. M. Fourth report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10154549.

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