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Artykuły w czasopismach na temat „Cumulative Plots”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 7 września 2023

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1

Nevell, David. "Using aggregated cumulative hazard plots to visualize failure data." Quality and Reliability Engineering International 16, no. 3 (2000): 209–19. http://dx.doi.org/10.1002/1099-1638(200005/06)16:3<209::aid-qre326>3.0.co;2-p.

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Loveridge, John P., and Stein R. Moe. "Termitaria as browsing hotspots for African megaherbivores in miombo woodland." Journal of Tropical Ecology 20, no. 3 (2004): 337–43. http://dx.doi.org/10.1017/s0266467403001202.

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Thirteen termite mounds and 13 similar-sized control plots were surveyed in central Zimbabwe in order to study large mammalian browsing and vegetation characteristics. The mounds supported almost twice as many tree species as the control plots and the woody vegetation was denser on mounds compared with the woodland plots. Species of woody plants were recorded along with the percentage of branches browsed (cumulative browsing score) by black rhino, Diceros bicornis, elephant, Loxodonta africana and other browsers combined. In addition we measured how the cumulative browsing score on three woody

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3

Mori, Akinori. "Greenhouse Gas Emissions from Cut Grasslands Renovated with Full Inversion Tillage, Shallow Tillage, and Use of a Tine Drill in Nasu, Japan." Agriculture 10, no. 2 (2020): 31. http://dx.doi.org/10.3390/agriculture10020031.

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To restore the productivity of a deteriorated sward due to weed invasion, renovation (re-sowing) is necessary. However, the renovation method used can affect the sward’s greenhouse gas (GHG) emissions and herbage yield. This study compared the effects of renovation using full inversion tillage (F), shallow tillage (S), or a tine drill (T) on the GHG emissions and herbage yield of a grassland in Nasu, Japan. Two adjacent grasslands were renovated in September 2015 (year 1) and 2016 (year 2). In each year, F, S, and T plots (5 m × 20 m each) were arranged in a randomized complete block design wi

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Hildebrand, Elisabeth, John M. Skelly, and Todd S. Fredericksen. "Foliar response of ozone-sensitive hardwood tree species from 1991 to 1993 in the Shenandoah national Park, Virginia." Canadian Journal of Forest Research 26, no. 4 (1996): 658–69. http://dx.doi.org/10.1139/x26-076.

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During the late summers of 1991, 1992, and 1993, the occurrence and severity of foliar symptoms on ozone-sensitive eastern hardwood species (black cherry (Prunusserotina Ehrh.), yellow-poplar (Liriodendrontulipifera L.), and white ash (Fraxinusamericana L.)) in the Shenandoah National Park, Va., and relationships between the observed symptoms and cumulative ambient ozone exposures were determined. Three plots containing 30 trees of each species were established adjacent to air quality monitoring stations located at three different elevations. The symptom response of black cherry was most clear

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5

Redondo, F. L. "Probability of disease ascertained by modified cumulative frequency plots: some comments." Clinical Chemistry 34, no. 11 (1988): 2389–90. http://dx.doi.org/10.1093/clinchem/34.11.2389.

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Helms, Laura E., and Ronald W. Helms. "P118 Using cumulative plots to detect biased assignments in unbalanced designs." Controlled Clinical Trials 16, no. 3 (1995): 139S. http://dx.doi.org/10.1016/0197-2456(95)90598-y.

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Xiao, Pei Qing, Wen Yi Yao, and Chang Gao Wang. "Soil Erosion Process in Sloped Shrub Plots under Simulated Rainfall." Advanced Materials Research 347-353 (October 2011): 2094–97. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2094.

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Runoff, sediment yield and infiltration process of shrub plots were studied under rainfall intensities of 45, 87 and 127 mm/h with 20° slope gradient using simulated rainfall experiment. The results showed that cumulative runoff and cumulative sediment yield of shrub plot had an obvious positive correlation with rainfall time. Under rainfall intensity of 45 mm/h, runoff and sediment yield of shrub plot kept a constant level. Under rainfall intensity of 87 mm/h, runoff kept a fluctuant increase, whereas sediment yield basically kept steady. Under rainfall intensity of 127 mm/h, runoff and sedim

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8

Gilligan, TM, and CD Hill. "PMC2 LONGITUDINAL DATA EXPLORATION WITH STACKED CUMULATIVE PERCENT PLOTS FOR CATEGORICAL DATA." Value in Health 12, no. 3 (2009): A19—A20. http://dx.doi.org/10.1016/s1098-3015(10)73155-7.

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Knight, A. L., and D. M. Light. "Developing action thresholds for codling moth (Lepidoptera: Tortricidae) with pear ester- and codlemone-baited traps in apple orchards treated with sex pheromone mating disruption." Canadian Entomologist 137, no. 6 (2005): 739–47. http://dx.doi.org/10.4039/n05-040.

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AbstractTraps baited with either ethyl (E,Z)-2,4-decadienoate (pear ester) or (E,E)- 8,10- dodecadien-1-ol (codlemone) (Pherocon® CM-DA™ and Megalure CM™ lures, respectively) were used to develop action thresholds for codling moth (Cydia pomonella (L.)) in apple (Malus domestica Borkh.; Rosaceae) orchards treated with sex pheromones for control of this pest. Studies were conducted in 102 orchards treated with 500–1000 ISOMATE®-C PLUS dispensers per hectare during 2000–2002. Pairs of traps were placed within two 1.0-ha plots within each orchard. Fruit injury was assessed at mid-season and prior

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10

Cox, Nicholas J. "Stata tip 141: Adding marginal spike histograms to quantile and cumulative distribution plots." Stata Journal: Promoting communications on statistics and Stata 21, no. 3 (2021): 838–46. http://dx.doi.org/10.1177/1536867x211045583.

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Cox, Nicholas J. "Stata tip 141: Adding marginal spike histograms to quantile and cumulative distribution plots." Stata Journal: Promoting communications on statistics and Stata 21, no. 3 (2021): 838–46. http://dx.doi.org/10.1177/1536867x211045583.

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12

Rudzki, Piotr J., Michał Kaza, and Przemysław Biecek. "Extended 3D and 4D cumulative plots for evaluation of unmatched incurred sample reanalysis." Bioanalysis 10, no. 3 (2018): 153–62. http://dx.doi.org/10.4155/bio-2017-0210.

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13

Sabria, Joan, Carmina Comas, Carles Barceló-Vidal, et al. "Cumulative sum plots and retrospective parameters in first-trimester ductus venosus quality assurance." Prenatal Diagnosis 33, no. 4 (2013): 384–90. http://dx.doi.org/10.1002/pd.4079.

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Mirahmadizadeh, Alireza, Mousa Ghelichi-Ghojogh, Kimia Jokari, et al. "Correlation Between Diabetes and COVID-19 Indices: A Global Level Ecological Study." SAGE Open Nursing 9 (January 2023): 237796082311654. http://dx.doi.org/10.1177/23779608231165485.

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Introduction Coronavirus is threatening the global public health as a new and widespread crisis. The researchers must keep in mind that one of the most vulnerable groups to COVID-19 are the people with underlying diseases, especially diabetes. Objective This ecological study aimed to investigate the correlation between diabetes and the epidemiological indices of COVID-19. Methods This ecological study included 144 countries. Their available data consists of the cumulative incidence rate of cases, cumulative incidence rate of death, recovery rate, case fatality rate, and performed tests of COVI

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Rom, Curt R., and Jason McAfee*. "Effects of Wood-chip Mulch on Growth and Productivity of `Apache' Blackberry." HortScience 39, no. 4 (2004): 825E—826. http://dx.doi.org/10.21273/hortsci.39.4.825e.

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`Apache' blackberry planted in 3-m plots spaced at 0.6 m between plants were maintained either with or without waste municipal wood chip mulch and grown for 5 years. Plots received similar weed control, pest management, and irrigation. All plots were annually hedged at 1.35-m height twice during midsummer to encourage branching. Fruit were harvested beginning in the second season after a season of establishment. Annual yield in the mulched plots was 15% greater, average fruit size was 4% larger, and cumulative yield was 9% greater in the mulched plots compared to nonmulched control plots. In t

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16

Chen, Ho-Wen, and Chien-Yuan Chen. "Warning Models for Landslide and Channelized Debris Flow under Climate Change Conditions in Taiwan." Water 14, no. 5 (2022): 695. http://dx.doi.org/10.3390/w14050695.

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Climate change has caused numerous disasters around the world. It has also influenced the climate of Taiwan, with urban areas exhibiting a temperature increase by 1 °C between 1998 and 2020. In this study, climate change and landslides in Taiwan were statistically analyzed. Cumulative annual precipitation in mountain watersheds in central Taiwan exhibit a declining trend and is lower than that in urban areas. The relatively few typhoons reduced the distribution of rainfall in mountain watersheds and fewer landslides. From 2017 to 2020, typhoon-induced rains caused fewer landslides than did oth

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17

Roshchina, Olga S., and Oksana A. Farafonova. "AUTOBIOGRAPHIES BASED ON MODELS OF FICTION LITERATURE PLOTS IN RUSSIAN MEMOIRISTICS OF THE 18TH CENTURY." Lomonosov Journal of Philology, no. 4, 2023 (August 23, 2023): 113–22. http://dx.doi.org/10.55959/msu0130-0075-9-2023-47-04-10.

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The article identifies thе alternative changes to the traditional plot pattern for autobiographical narration. Memoirs of the 18th century are based on the cumulative principle presuming that heterogeneous events (both nation-wide and those of public and private life of the memoirist himself) are described in parallel and in a strict chronological sequence. In contrast to the previous tradition of memoir-making, Shakhovskoy conceptualizes his life as moving from happiness to unhappiness and focuses on the cumulative plot of an adventure novel. He describes only official activity and builds up

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18

Harmon, Mark, and Robert Pabst. "The Long-Term Effects of Wind Disturbance on a Sitka Spruce-Western Hemlock Forest." Forests 10, no. 2 (2019): 119. http://dx.doi.org/10.3390/f10020119.

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Wind is an important disturbance in many forested regions, but research has largely focused on immediate to short-term (<10 years) effects on species composition and structure of stands and landscapes. We used a set of ten, 0.4-ha plots established in 1935 and measured every 5–13 years to examine the cumulative effects of multiple wind disturbance events in the coastal forests of Oregon. Since 1935 there have been ten documented wind events in coastal Oregon with hurricane-force winds. Most of the eight windstorms since 1962 noticeably influenced at least one plot; however, no individual st

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19

Zhang, Wen Mei, Qi Ming J. Yu, Qi Ming Cao, and Des W. Connell. "A Simplified Computational Method for Overall Risk Probability in Probabilistic Health Risk Assessments of Environmental Pollutants." Advanced Materials Research 550-553 (July 2012): 2076–80. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.2076.

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In the assessment of health risks of environmental pollutants, both conventional methods and probabilistic methods based on the use of cumulative probability plots have been used. Probabilistic risk assessment has the advantage that the statistical distributions of both the exposure data set and the adverse effect data set are taken into account in risk characterization. In addition, the method of overall risk probability (ORP) has been used to quantify the overall risk probability of adverse effects for the population samples. The disadvantage is that many more data points are needed to obtai

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20

Quigley, Martin F., and Harold H. Slater. "Mapping Forest Plots: A Fast Triangulation Method for One Person Working Alone." Southern Journal of Applied Forestry 18, no. 3 (1994): 133–36. http://dx.doi.org/10.1093/sjaf/18.3.133.

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Abstract With two fixed target locations, the Sonin electronic measuring device enables stem mapping of forest plots and transects to be done efficiently by one person, or greatly accelerates team work. There is no cumulative mapping error within individual plots. Measurements are much faster than tape measuring and more accurate than bearing/range methods, and the equipment costs are very low. The procedures for data verification, conversion to Cartesian coordinates, and for standarization of interplot coordinates are presented. South. J. Appl. For. 18(3):133-136.

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21

McRoberts, Ronald E., Jerold T. Hahn, Glenda J. Hefty, and Jerry R. Van Cleve. "Variation in forest inventory field measurements." Canadian Journal of Forest Research 24, no. 9 (1994): 1766–70. http://dx.doi.org/10.1139/x94-228.

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Field crews from the North Central Forest Experiment Station independently measured two forest inventory plots in Michigan's Upper Peninsula; one plot was measured by eight crews and the other was measured by nine different crews. For 61 trees, the variation in measurements of diameter at breast height (DBH), crown ratio, and site index is described. For DBH, the distribution of field crew mistakes and the distribution of measurements without mistakes are described separately. For crown ratio, the distribution of differences between individual estimates and the most frequently occurring estima

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22

del Valle, José M., Constanza V. Carrasco, Felipe R. Toledo, and Gonzalo A. Núñez. "Particle size distribution and stratification of pelletized oilseeds affects cumulative supercritical CO2 extraction plots." Journal of Supercritical Fluids 146 (April 2019): 189–98. http://dx.doi.org/10.1016/j.supflu.2019.01.017.

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23

Bhaskar, Ashish, Edward Chung, and André-Gilles Dumont. "Analysis for the Use of Cumulative Plots for Travel Time Estimation on Signalized Network." International Journal of Intelligent Transportation Systems Research 8, no. 3 (2010): 151–63. http://dx.doi.org/10.1007/s13177-010-0012-y.

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Pageot, Yann, Frédéric Baup, Jordi Inglada, Nicolas Baghdadi, and Valérie Demarez. "Detection of Irrigated and Rainfed Crops in Temperate Areas Using Sentinel-1 and Sentinel-2 Time Series." Remote Sensing 12, no. 18 (2020): 3044. http://dx.doi.org/10.3390/rs12183044.

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The detection of irrigated areas by means of remote sensing is essential to improve agricultural water resource management. Currently, data from the Sentinel constellation offer new possibilities for mapping irrigated areas at the plot scale. Until now, few studies have used Sentinel-1 (S1) and Sentinel-2 (S2) data to provide approaches for mapping irrigated plots in temperate areas. This study proposes a method for detecting irrigated and rainfed plots in a temperate area (southwestern France) jointly using optical (Sentinel-2), radar (Sentinel-1) and meteorological (SAFRAN) time series, thro

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KNAFL, G. J., J. A. MORGAN, R. L. FOLLENWEIDER, and R. M. KARCICH. "SOFTWARE FAILURE DATA ANALYSIS USING THE LEAST SQUARES APPROACH AND THE TIME PER FAILURE CONCEPT." International Journal of Reliability, Quality and Safety Engineering 02, no. 02 (1995): 161–76. http://dx.doi.org/10.1142/s0218539395000137.

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We adapt data analytic techniques to the software reliability setting. We develop an evaluation procedure based on scatterplots of transformed data, crossvalidation using the predicted residual sum of squares (PRESS) criterion, residual plots, and normal plots. We analyze a software failure data set collected at Storage Technology Corporation utilizing this evaluation technique. We identify a new model which, for this data set, outperforms several established software reliability models, including the delayed S-shaped, exponential, inverse linear, logarithmic, power, and log power models. The

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Bush, Edward W., Allen D. Owings, Dennis P. Shepard, and James N. McCrimmon. "Mowing Height and Nitrogen Rate Affect Turf Quality and Vegetative Growth of Common Carpetgrass." HortScience 35, no. 4 (2000): 760–62. http://dx.doi.org/10.21273/hortsci.35.4.760.

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Common carpetgrass (Axonopus affinis Chase), mowed at 3.8 or 7.6 cm and fertilized with at least 98 kg·ha–1 N, maintained acceptable lawngrass quality during the 1993 and 1994 growing seasons. Cumulative vegetative growth (CVG) quality and coverage were increased in mowed plots fertilized with 98, 147, or 196 kg·ha–1 N. Unsightly seedheads were a problem in nonmowed plots 3 weeks after the start of the experiment, but did not appear in the mowed plots. Our results indicate that mowing common carpetgrass at 3.8 or 7.6 cm and fertilizing with 98, 147, or 196 kg·ha–1 N will provide acceptable tur

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Abid, M., N. Ahmed, Qayyum MF, M. Shaaban, and A. Rashid. "Residual and cumulative effect of fertilizer zinc applied in wheat-cotton production system in an irrigated aridisol." Plant, Soil and Environment 59, No. 11 (2013): 505–10. http://dx.doi.org/10.17221/313/2013-pse.

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The objectives of present study were to determine the residual and cumulative effects of zinc (Zn) fertilizer on cotton (Gossypium hirsutum L.) and wheat (Triticum aestivum L.) in a silt loam Typic Haplocambid soil (&lt; 0.05 mg/kg diethylenetriaminepentaacetic acid (DTPA)-Zn). The study comprised of two years field experiments where first cotton crop received zinc sulphate (ZnSO<sub>4</sub>∙H<sub>2</sub>O) at five rates (0, 5, 7.5, 10, 12.5 kg Zn/ha) in a randomized complete block design with four replications. After harvest, each plot was divided into two sub-plot

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28

Amosu, Adewale, Mohamed Imsalem, Anne Raymond, and Yuefeng Sun. "FischerLab: An Application for Generating Fischer Plots and Dynamic Fischer Plots from Wireline Well-Logs and Stratigraphic Data." Earth 1, no. 1 (2020): 36–48. http://dx.doi.org/10.3390/earth1010004.

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Fischer plots are a technique that is used to graph changes in accommodation in cyclic carbonate successions. They typically depict the cumulative departure from the average cycle thickness as a function of the cycle number or stratigraphic depth. Many applications of Fischer plots focus on their construction from exposed cyclic carbonate successions. No published programs allow the direct construction of Fischer plots from digital wireline well-logs or dynamic presentations of Fischer plots. Here, we introduce a program known as FischerLab, which facilitates the generation and analysis of Fis

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29

Pathan, S. M., L. Barton, and T. D. Colmer. "Evaluation of a soil moisture sensor to reduce water and nutrient leaching in turfgrass (Cynodon dactylon cv. Wintergreen)." Australian Journal of Experimental Agriculture 47, no. 2 (2007): 215. http://dx.doi.org/10.1071/ea05189.

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This study evaluated water application rates, leaching and quality of couch grass (Cynodon dactylon cv. Wintergreen) under a soil moisture sensor-controlled irrigation system, compared with plots under conventional irrigation scheduling as recommended for domestic lawns in Perth, Western Australia by the State’s water supplier. The cumulative volume of water applied during summer to the field plots of turfgrass with the sensor-controlled system was 25% less than that applied to plots with conventional irrigation scheduling. During 154 days over summer and autumn, about 4% of the applied water

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Clough, T. J., N. Balaine, K. C. Cameron, S. O. Petersen, and S. G. Sommer. "Effects of dairy shed effluent dry matter content on ammonia and nitrous oxide emissions from a pasture soil." Journal of Agricultural Science 156, no. 9 (2018): 1070–78. http://dx.doi.org/10.1017/s0021859618001028.

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AbstractAtmospheric emissions of nitrogen (N) from New Zealand dairy farms are significant but have the potential to be affected by manure management prior to land application. The current work examined whether reducing cattle manure dry matter (DM) from 0.16 high DM (HDM) to 0.06 low DM (LDM), to enhance infiltration and reduce ammonia (NH3) emissions when applied to grassland, would affect nitrous oxide (N2O) emissions. Pasture was cut, simulating grazing, and either amended with HDM (173 kg N/ha) or LDM manure (48 kg N/ha) or left unamended. Ammonia emissions from HDM manure were higher tha

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ten Huf, Martin, and Hans-Werner Olfs. "Evaluation of the Dynamic Tube Method for Measuring Ammonia Emissions after Liquid Manure Application." Agriculture 13, no. 6 (2023): 1217. http://dx.doi.org/10.3390/agriculture13061217.

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Easy and inexpensive methods for measuring ammonia emissions in multi-plot field trials allow the comparison of several treatments with liquid manure application. One approach that might be suitable under these conditions is the dynamic tube method (DTM). Applying the DTM, a mobile chamber system is placed on the soil surface, and the air volume within is exchanged at a constant rate for approx. 90 s. with an automated pump. This procedure is assumed to achieve an equilibrium ammonia concentration within the system. Subsequently, a measurement is performed using an ammonia-sensitive detector t

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Zartman, Richard E., Corey A. Moffet, David B. Wester, Ronald E. Sosebee, Ernest B. Fish, and William F. Jaynes. "Influence of Surface Biosolids Application on Infiltration." Applied and Environmental Soil Science 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/642791.

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Biosolids from waste water treatment facilities applied to soils not only add plant nutrients, but also increase infiltration and decrease runoff and erosion. Wet biosolids from New York, NY, were surface applied at 0 to 90 Mg ha−1dry weight to soils near El Paso, Tex. Simulated rainfall intensities of 16.4 cm hr−1for 30 minutes applied to 0.5 m2soil plots yielded initial infiltration rates of ~16 cm hr−1for all plots. Biosolids applications extended the duration of the initially high infiltration rates. After 30 minutes, infiltration rates for bare soil were 3 cm hr−1without and 10 cm hr−1wit

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Myers, Matthew W., William S. Curran, Mark J. VanGessel, et al. "Predicting weed emergence for eight annual species in the northeastern United States." Weed Science 52, no. 6 (2004): 913–19. http://dx.doi.org/10.1614/ws-04-025r.

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A 2-yr experiment assessed the potential for using soil degree days (DD) to predict cumulative weed emergence. Emerged weeds, by species, were monitored every 2 wk in undisturbed plots. Soil DD were calculated at each location using a base temperature of 9 C. Weed emergence was fit with logistic regression for common ragweed, common lambsquarters, velvetleaf, giant foxtail, yellow foxtail, large crabgrass, smooth pigweed, and eastern black nightshade. Coefficients of determination for the logistic models fit to the field data ranged between 0.90 and 0.95 for the eight weed species. Common ragw

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Fan, Zhaofei, Stephen R. Shifley, Martin A. Spetich, Frank R. Thompson, and David R. Larsen. "Abundance and Size Distribution of Cavity Trees in Second-Growth and Old-Growth Central Hardwood Forests." Northern Journal of Applied Forestry 22, no. 3 (2005): 162–69. http://dx.doi.org/10.1093/njaf/22.3.162.

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Abstract In central hardwood forests, mean cavity-tree abundance increases with increasing stand-size class (seedling/sapling, pole, sawtimber, old-growth). However, within a size class, the number of cavity trees is highly variable among 0.1-ha inventory plots. Plots in young stands are most likely to have no cavity trees, but some plots may have more than 50 cavity trees/ha. Plots in old-growth stands often had 25 to 55 cavity trees/ha, but individual plots ranged from 0 to 155/ha. The Weibull probability density function was used to mathematically describe the variation in cavity-tree abund

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Cox, Nicholas J. "Speaking Stata: The Protean Quantile Plot." Stata Journal: Promoting communications on statistics and Stata 5, no. 3 (2005): 442–60. http://dx.doi.org/10.1177/1536867x0500500312.

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Quantile plots showing by default ordered values versus cumulative probabilities are both well known and also often neglected, considering their major advantages. Their flexibility and power is emphasized by using the qplot program to show several variants on the standard form, making full use of options for reverse, ranked, and transformed scales and for superimposing and juxtaposing quantile traces. Examples are drawn from the analysis of species abundance data in ecology. A revised version of qplot is formally released with this column. Distribution plots in which the axes are interchanged

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Carmosini, N., K. J. Devito, and E. E. Prepas. "Net nitrogen mineralization and nitrification in trembling aspen forest soils on the Boreal Plain." Canadian Journal of Forest Research 33, no. 11 (2003): 2262–68. http://dx.doi.org/10.1139/x03-153.

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In situ net N mineralization and net nitrification rates were measured in organic forest floor (LFH) and mineral horizons of mature and logged trembling aspen (Populus tremuloides Michx.) stands on the Boreal Plain in western Canada. Cumulative May to September mineralization for mature and logged plots was 1354 ± 534 and 1631 ± 1584 mg N·m2, respectively, in the LFH horizon and 810 ± 394 and 305 ± 3957 mg N·m2, respectively, in the mineral horizon. Net nitrification in mature and logged plots was 86 ± 142 and 658 ± 435 mg NO3-N·m2, respectively, in the LFH horizon and 67 ± 50 and 409 ± 32

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Stewart, William B., Gary W. Witmer, and Gary M. Koehler. "Black Bear Damage to Forest Stands in Western Washington." Western Journal of Applied Forestry 14, no. 3 (1999): 128–31. http://dx.doi.org/10.1093/wjaf/14.3.128.

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Abstract Cambium-feeding behavior by black bears (Ursus americanus), or bear damage, is a major reforestation problem in the Pacific Northwest. Historically, studies have measured the cumulative effects of damage over time, but few have viewed damage in the frame of one season. Bear damage occurring in 1996 was surveyed in areas of radio-marked bears in western Washington. Fresh damage occurred on 48% of bear location plots (n = 96). Douglas-fir (Pseudotsuga menziesii) (69%), western hemlock (Tsuga heterophylla) (19%), and Pacific silver fir (Abies amabilis) (10%) with a mean dbh of 25.1, 29.5

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Linkevičius, Edgaras, Benas Šilinskas, Lina Beniušienė, Marius Aleinikovas, and Almantas Kliučius. "The Growing Dynamic of Pure Scots Pine Stands Using Different Thinning Regimes in Lithuania." Forests 14, no. 8 (2023): 1610. http://dx.doi.org/10.3390/f14081610.

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The aim of this study is to relate initial stand density and thinning intensity to tree diameter, height, and volume increment based on continuous 30-year observations in thinning experimental stands of Scots pine (Pinus sylvestris L.). The thinning experiments on Scots pine were established in 1990 and 1992, and the experimental model in each trial comprised five density variants: control and four plots with tree densities up to 3.0–4.4, 2.0–2.4, 1.0–1.2, and 0.5–0.6 thousand trees per hectare after the initial thinning. Since the establishment, only the dead trees were removed in control plo

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Siljanen, Henri M. P., Nina Welti, Carolina Voigt, Juha Heiskanen, Christina Biasi, and Pertti J. Martikainen. "Atmospheric impact of nitrous oxide uptake by boreal forest soils can be comparable to that of methane uptake." Plant and Soil 454, no. 1-2 (2020): 121–38. http://dx.doi.org/10.1007/s11104-020-04638-6.

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Abstract Aims Environmental factors controlling nitrous oxide (N2O) uptake in forest soils are poorly known, and the atmospheric impact of the forest N2O sink is not well constrained compared to that of methane (CH4). Methods We compared nitrous oxide (N2O) and CH4 fluxes over two growing seasons in boreal forest soils located in Eastern Finland. Within a spruce forest, we compared plots with long-term nitrogen (N) fertilization history and non-fertilized plots, and additionally pine forest plots without a fertilization history. The flux data was complemented with measurements of climatic cond

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Mašíček, Tomáš, F. Toman, and M. Vičanová. "Comparison of infiltration capacity of permanent grassland and arable land during the 2011 growing season." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 60, no. 6 (2012): 257–66. http://dx.doi.org/10.11118/actaun201260060257.

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The aim of this paper was to compare the rate of infiltration and cumulative infiltration in permanent grassland (PG) and in arable land over the course of the 2011 growing season. The measurement of water infiltration into soil was conducted via ponded infiltration method based on the use of two concentric cylinders in field conditions. Kostiakov equations were applied to evaluate the ponded infiltration. Based on field measurements, the dependence of infiltration rate (v) on time (t) was determined and also the dependence of cumulative infiltration (i) on time (t). In order to determine phys

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KING, K. W., and H. A. TORBERT. "Nitrate and ammonium losses from surface-applied organic and inorganic fertilizers." Journal of Agricultural Science 145, no. 4 (2007): 385–93. http://dx.doi.org/10.1017/s0021859607006946.

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SUMMARYAnimal manures are a valuable resource, providing readily available plant nutrients; however, runoff from lands receiving animal manure has been shown to contribute to water pollution. Understanding the loss of nutrients from slow release fertilizers, such as animal manure, after application is critical in determining and designing practices to reduce and/or control the temporal availability and potential offsite transport of NO3-N and NH4-N after application. A block study was designed to compare and contrast the temporal losses of NO3-N and NH4-N from three slow release fertilizers (s

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Bender, David A. "TEMPERATURE REGIMES UNDER ROW COVERS IN OVERWINTER ONION TRANSPLANT PRODUCTION." HortScience 25, no. 8 (1990): 858H—858. http://dx.doi.org/10.21273/hortsci.25.8.858.

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Two cultivars of onions, `New Mexico Yellow Grano' and `Midstar' were seeded in single bed plots in mid-October 1985 and 1987 for overwinter transplant production. Plots were covered with spunbonded polyester (POL) or tunnels of clear polyethylene (CLR) or microperforated polyethylene (PER) (1985 only) in early November and compared to uncovered controls. Temperatures were monitored 5 cm above the soil surface under the covers in each plot with three parallel-wired thermocouples. Heat unit (HU) accumulation (number of degrees by which the daily mean temp exceeded 0°C) was recorded for each plo

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Bender, David A. "TEMPERATURE REGIMES UNDER ROW COVERS IN OVERWINTER ONION TRANSPLANT PRODUCTION." HortScience 25, no. 8 (1990): 858h—858. http://dx.doi.org/10.21273/hortsci.25.8.858h.

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Two cultivars of onions, `New Mexico Yellow Grano' and `Midstar' were seeded in single bed plots in mid-October 1985 and 1987 for overwinter transplant production. Plots were covered with spunbonded polyester (POL) or tunnels of clear polyethylene (CLR) or microperforated polyethylene (PER) (1985 only) in early November and compared to uncovered controls. Temperatures were monitored 5 cm above the soil surface under the covers in each plot with three parallel-wired thermocouples. Heat unit (HU) accumulation (number of degrees by which the daily mean temp exceeded 0°C) was recorded for each plo

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Stern, R., MC Laker, and AJ Vandermerwe. "Field studies on effect of soil conditioners and mulch on runoff lrom kaolinitic and illitic soils." Soil Research 29, no. 2 (1991): 249. http://dx.doi.org/10.1071/sr9910249.

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Runoff plots (1 - 5 m2) were constructed at three sites where crusting, runoff and erosion are severe problems. The effect of surface application of phosphogypsum (PG), polyacrylamide (PAM) and mulch cover on runoff during natural rainstorms were studied. Runoff percentage from control (bare) plots in some rainstorms exceeded 90% of the rainfall. The annual runoff from control plots ranged between 33 and 73% of the annual rain. Mulch was highly beneficial in reducing runoff, indicating that seal formation restricted water penetration rather than hydraulic properties of the profile. PG reduced

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Hartikainen, Helinä. "Effect of cumulative fertilizer dressings on the phosphorus status of mineral soils I Changes in inorganic phosphorus fractions." Agricultural and Food Science 61, no. 2 (1989): 55–59. http://dx.doi.org/10.23986/afsci.72352.

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Surface soil samples were collected from 16 P fertilization trials before onset of the experiments and after seven years of cultivation. The changes in the inorganic P fractions were investigated in plots amended annually with 0, 30 or 60 kg of P ha-1. In the clay soils, cultivation without P fertilization depleted the NH4F-extractable and NaOH-extractable P reserves by 22—69 kg ha-1 ; in the coarser soils, the respective depletion was 8—140 kg ha-1. H2S04-soluble P decreased in seven soils by 16—34 kg ha-1. In the plots amended totally with 210 or 420 kg of P ha-1, on the other hand, these P

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Alfaro, R. I., E. Wegwitz, R. G. Brown, and S. P. Taylor. "Douglas-fir Tussock Moth Damage in British Columbia." Forestry Chronicle 63, no. 5 (1987): 351–55. http://dx.doi.org/10.5558/tfc63351-5.

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The Douglas-fir tussock moth (Orgyia pseudotsugata McDunnough) defoliated Douglas-fir (Pseudotsuga menziesii var glauca [Beissn.] Franco), in British Columbia from 1981 to 1983. Forty-five defoliated and 16 non-defoliated (check) plots were monitored for defoliation and damage from 1982 to 1985. By 1985, cumulative mortality and top-kill in the defoliated plots averaged 51% (49% by volume) and 11%, respectively. Check plots sustained no mortality and less than 1% top-kill due to causes other than tussock moth defoliation. Mortality occurred very early in the outbreak, with 56% of the dead tree

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McNamara, S. "PRM73 The Use of Cumulative Hazard Plots to Inform Resource Allocation and Research Decisions in Health Care." Value in Health 15, no. 7 (2012): A473. http://dx.doi.org/10.1016/j.jval.2012.08.1536.

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Klaiber, Laura B., Stephen R. Kramer, and Eric O. Young. "Impacts of Tile Drainage on Phosphorus Losses from Edge-of-Field Plots in the Lake Champlain Basin of New York." Water 12, no. 2 (2020): 328. http://dx.doi.org/10.3390/w12020328.

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Quantifying the influence of tile drainage on phosphorus (P) transport risk is important where eutrophication is a concern. The objective of this study was to compare P exports from tile-drained (TD) and undrained (UD) edge-of-field plots in northern New York. Four plots (46 by 23 m) were established with tile drainage and surface runoff collection during 2012–2013. Grass sod was terminated in fall 2013 and corn (Zea mays L.) for silage was grown in 2014 and 2015. Runoff, total phosphorus (TP), soluble reactive phosphorus (SRP), and total suspended solids (TSS) exports were measured from April

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Hulugalle, N. R., and M. S. Rodriguez. "Soil Physical Properties of Tied Ridges in the Sudan Savannah of Burkina Faso." Experimental Agriculture 24, no. 3 (1988): 375–84. http://dx.doi.org/10.1017/s0014479700016239.

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SUMMARYThe soil physical properties of tied ridges were measured in a trial, established in 1983, comparing three treatments: handhoe cultivation and planting on the flat; planting directly without any cultivation on tied ridges constructed the previous year; and handhoe cultivation and remoulding of tied ridges constructed the previous year. Two maize varieties and two management levels were used. The soil properties monitored were particle size distribution, penetro-meter resistance in the surface 20 mm, bulk density, water infiltration, soil water retention and soil temperature.Soil physica

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Nezar E. Ali and Azher A. Mohammad. "Stability conditions of limit cycle for Gompertz Autoregressive model." Tikrit Journal of Pure Science 28, no. 2 (2023): 129–34. http://dx.doi.org/10.25130/tjps.v28i2.1348.

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In this paper, we suggest Gompertz Autoregressive model by using the cumulative distribution function of Gompertz distribution and, the aim of this paper is studying and finding the stability conditions of a limit cycle for the Gompertz Autoregressive model with period, with giving some examples for Gompertz AR (1) to explain the orbital stable or the orbital unstable with plots the trajectories with different initial values.

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