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Artículos de revistas sobre el tema "Artificially wetted soil"

Autor: Grafiati
Publicado: 10 de marzo de 2023

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1

Sawada, Y., LAG Aylmore, and JM Hainsworth. "Development of a soil water dispersion index (SOWADIN) for testing the effectiveness of soil-wetting agents." Soil Research 27, no. 1 (1989): 17. http://dx.doi.org/10.1071/sr9890017.

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Computer-assisted tomography (CAT) applied to gamma-ray attenuation measurements has been used to develop an index termed the soil water dispersion index (SOWADIN), which describes quantitatively the amount and distribution of water in soil columns. The index, which is determined by classifying pixels in a scanned slice into three categories according to their attenuation coefficients, contains two numerical values. The first value corresponds to the water content of the scanned slice and the second value is a measure of the dispersion of the water throughout the slice. Artificially wetted zon
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2

Halihan, Todd, John Paul Hager, Lucie Guertault, and Garey A. Fox. "Detecting Macropore Fingering Using Temporal Electrical Resistivity Imaging." Applied Engineering in Agriculture 37, no. 5 (2021): 861–70. http://dx.doi.org/10.13031/aea.14294.

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HighlightsSingle macropores can be detected using temporal electrical resistivity imaging under controlled conditions.Macropore flow can be detected based on preferentially wetted fingers of increased conductance.Macropore activation does not appear to require saturated surface conditions to induce preferential flow.Abstract. Riparian soils are uniquely susceptible to the formation of macropores, which are hypothesized to promote fast transport of water and contaminants through upper soil layers. Electrical Resistivity Imaging (ERI) can locate spatial heterogeneities in soil wetting patterns a
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3

Sokołowska, Zofia, Katarzyna Szewczuk-Karpisz, Marcin Turski, Agnieszka Tomczyk, Marta Cybulak, and Kamil Skic. "Effect of Wood Waste and Sunflower Husk Biochar on Tensile Strength and Porosity of Dystric Cambisol Artificial Aggregates." Agronomy 10, no. 2 (2020): 244. http://dx.doi.org/10.3390/agronomy10020244.

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This paper focuses on the tensile strength (Q) and porosity of Dystric Cambisol cylinders with and without biochars (0.1% or 5% dose) obtained from wood waste (BC1) and sunflower husks (BC2). The experiments were performed on air-dried and wetted artificial aggregates remolded from unfractionated soil and its selected fractions (1–0.25, 0.25–0.1, 0.1–0.05, and <0.05 mm). The obtained results indicated that the biochar addition reduced the tensile strength of all examined samples, regardless of the type of biomass used in pyrolysis. This effect was more significant with the larger biochar do
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4

Menzies, NW, and LC Bell. "Evaluation of the influence of sample preparation and extraction technique on soil solution composition." Soil Research 26, no. 3 (1988): 451. http://dx.doi.org/10.1071/sr9880451.

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Soil solutions were extracted by immiscible liquid displacement with trichlorotrifluoroethane and by centrifuge drainage from surface and subsoil samples having a wide range of chemical and physical properties. Extractions were performed on field-moist samples and on air-dry samples which were re-wetted to different matric suctions and for different lengths of time. The composition of the soil solution obtained was the same with both methods of extraction when samples had been pre-wet to a matric suction of 0-1 bar. Immiscible liquid displacement extracted solution from a krasnozem surface soi
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5

Ahmed, Mutez A., Eva Kroener, Maire Holz, Mohsen Zarebanadkouki, and Andrea Carminati. "Mucilage exudation facilitates root water uptake in dry soils." Functional Plant Biology 41, no. 11 (2014): 1129. http://dx.doi.org/10.1071/fp13330.

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As plant roots take up water and the soil dries, water depletion is expected to occur in the rhizosphere. However, recent experiments showed that the rhizosphere was wetter than the bulk soil during root water uptake. We hypothesise that the increased water content in the rhizosphere was caused by mucilage exuded by roots. It is probably that the higher water content in the rhizosphere results in higher hydraulic conductivity of the root–soil interface. In this case, mucilage exudation would favour the uptake of water in dry soils. To test this hypothesis, we covered a suction cup, referred to
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6

Stewart, D. J., C. M. Taylor, C. E. Reeves, and J. B. McQuaid. "Biogenic nitrogen oxide emissions from soils: impact on NO<sub>x</sub> and ozone over west Africa during AMMA (African Monsoon Multidisciplinary Analysis): observational study." Atmospheric Chemistry and Physics 8, no. 8 (2008): 2285–97. http://dx.doi.org/10.5194/acp-8-2285-2008.

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Abstract. Chemical and meteorological parameters measured on board the Facility for Airborne Atmospheric Measurements (FAAM) BAe 146 Atmospheric Research Aircraft during the African Monsoon Multidisciplinary Analysis (AMMA) campaign are presented to show the impact of NOx emissions from recently wetted soils in West Africa. NO emissions from soils have been previously observed in many geographical areas with different types of soil/vegetation cover during small scale studies and have been inferred at large scales from satellite measurements of NOx. This study is the first dedicated to showing
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7

Lastiri-Hernández, Marcos Alfonso, Dioselina Álvarez-Bernal, Gustavo Cruz-Cárdenas, J. Teodoro Silva-García, Eloy Conde-Barajas, and Ernesto Oregel-Zamudio. "Potential of Epipremnum aureum and Bacopa monnieri (L.) Wettst for Saline Phytoremediation in Artificial Wetlands." Water 15, no. 1 (2023): 194. http://dx.doi.org/10.3390/w15010194.

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The aim of this research was to evaluate the phytoremediative potential of Epipremnum aureum and Bacopa monnieri to improve the chemical properties of irrigation water exposed to the following two saline concentrations: highly saline (EC 2000 μS cm−1) and severely saline (EC 4000 μS cm−1). The artificial wetlands used in this experiment were of the free water surface type, considering a hydraulic retention time of 42 days. The evaluated treatments were configured as follows: T1 (B. monnieri [control, 300 μS cm−1]), T2 (B. monnieri [2000 μS cm−1]), T3 (B. monnieri [4000 μS cm−1]), T4 (E. aureum
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8

Tiemeyer, B., and P. Kahle. "Nitrogen and dissolved organic carbon (DOC) losses from an artificially drained grassland on organic soils." Biogeosciences Discussions 11, no. 2 (2014): 3023–64. http://dx.doi.org/10.5194/bgd-11-3023-2014.

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Abstract. Nitrate-nitrogen (NO3-N) as well as dissolved organic carbon (DOC) and nitrogen (DON) concentrations and losses were studied for three respectively two years in a small catchment dominated by a degraded peatland used as intensive grassland. Concentrations in the shallow groundwater were spatially and temporally very variable with NO3-N being the most dynamic component (7.3 ± 12.5 mg L–1). Average NO3-N concentrations of 10.3 ± 5.4 mg L–1 in the ditch draining the catchment and annual NO3-N losses of 19, 35 and 26 kg ha–1 confirmed drained peatlands as an important source of diffuse N
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9

Tiemeyer, B., and P. Kahle. "Nitrogen and dissolved organic carbon (DOC) losses from an artificially drained grassland on organic soils." Biogeosciences 11, no. 15 (2014): 4123–37. http://dx.doi.org/10.5194/bg-11-4123-2014.

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Abstract. Nitrate–nitrogen (NO3–N) as well as dissolved organic carbon (DOC) and nitrogen (DON) concentrations and losses were studied for three and two years, respectively, in a small catchment dominated by a degraded peatland used as intensive grassland. Concentrations in the shallow groundwater were spatially and temporally very variable, with NO3–N being the most dynamic component (7.3 ± 12.5 mg L−1) and ranging from 0 to 79.4 mg L−1. Average NO3–N concentrations of 10.3 ± 5.4 mg L−1 (0 to 25.5 mg L−1) in the ditch draining the catchment and annual NO3–N losses of 19, 35 and 26 kg ha−1 con
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10

Welsh, Molly K., Sara K. McMillan, and Philippe G. Vidon. "Impact of Riparian and Stream Restoration on Denitrification in Geomorphic Features of Agricultural Streams." Transactions of the ASABE 63, no. 5 (2020): 1157–67. http://dx.doi.org/10.13031/trans.13777.

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HighlightsDenitrification enzyme activity (DEA) was measured in stream sediments of restored and unrestored agricultural streams.Nitrate, sediment characteristics, riparian vegetation, and geomorphology influenced DEA.Pools at restored sites had lower organic carbon, coarser sediment textures, and lower denitrification potential.Restoration strategies should increase organic carbon and residence times through complex flowpaths.Abstract. Agricultural land use, channel modifications, and riparian vegetation composition can affect instream denitrification by altering geomorphic features, such as
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11

Burnett, Michael W., Gregory R. Quetin, and Alexandra G. Konings. "Data-driven estimates of evapotranspiration and its controls in the Congo Basin." Hydrology and Earth System Sciences 24, no. 8 (2020): 4189–211. http://dx.doi.org/10.5194/hess-24-4189-2020.

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Abstract. Evapotranspiration (ET) from tropical forests serves as a critical moisture source for regional and global climate cycles. However, the magnitude, seasonality, and interannual variability of ET in the Congo Basin remain poorly constrained due to a scarcity of direct observations, despite the Congo being the second-largest river basin in the world and containing a vast region of tropical forest. In this study, we applied a water balance model to an array of remotely sensed and in situ datasets to produce monthly, basin-wide ET estimates spanning April 2002 to November 2016. Data sourc
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12

Ozerova, S. D. "Vegetation map of the “Lindulovskaya Roshcha” nature reserve." Geobotanical mapping, no. 2021 (2021): 84–96. http://dx.doi.org/10.31111/geobotmap/2021.84.

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The article presents the vegetation map of the “Lindulovskaya Roshcha” Nature Reserve (Fig. 1, 2), which is located in the Vyborg district, Leningrad Region (Karelian Isthmus). The reserve was organized in 1976 to protect the Lindulovskaya larch ship grove with the world’s oldest tree plantings. The idea of planting larch in the suburbs of St. Petersburg, necessary for the needs of shipbuilding, belonged to Peter the Great. However, it was possible to implement this project only in 1738, when the first planting of Siberian larch seeds collected in the Arkhangelsk region was carried out on ­agr
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13

Gutierrez, Moises M., Micah V. Cameron-Harp, Partha P. Chakraborty, et al. "Investigating a microbial approach to water conservation: Effects of Bacillus subtilis and Surfactin on evaporation dynamics in loam and sandy loam soils." Frontiers in Sustainable Food Systems 6 (October 17, 2022). http://dx.doi.org/10.3389/fsufs.2022.959591.

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Semi-arid regions faced with increasingly scarce freshwater resources must manage competing demands in the food-energy-water nexus. A possible solution modifies soil hydrologic properties using biosurfactants to reduce evaporation and improve water retention. In this study, two different soil textures representative of agricultural soils in Kansas were treated with a direct application of the biosurfactant, Surfactin, and an indirect application via inoculation of Bacillus subtilis. Evaporation rates of the wetted soils were measured when exposed to artificial sunlight (1000 W/m2) and compared
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14

He, Xiao-hui, Jian-hua Si, Li Zhu, et al. "Modeling habitat suitability of Hippophae rhamnoides L. using MaxEnt under climate change in China: A case study of H. r. sinensis and H. r. turkestanica." Frontiers in Forests and Global Change 5 (January 11, 2023). http://dx.doi.org/10.3389/ffgc.2022.1095784.

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Hippophae rhamnoides is widely known for its important ecological, economic, and social benefits. It is known as the pioneer plant of soil and water conservation, with homology in food and medicine. With the climate warming in recent years, the numbers of this species and countries with this plant have decreased steadily. H. r. sinensis and H. r. turkestanica have the widest distribution area in China, which account for more than 90% of the total national Hippophae rhamnoides resources. We firstly screened the presence data and downscale the environment variables (climate and soil) by correlat
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15

Mathur, Manish, Preet Mathur, and Harshit Purohit. "Ecological niche modelling of a critically endangered species Commiphora wightii (Arn.) Bhandari using bioclimatic and non-bioclimatic variables." Ecological Processes 12, no. 1 (2023). http://dx.doi.org/10.1186/s13717-023-00423-2.

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Abstract Background The aim of this study is to examine the effects of four different bioclimatic predictors (current, 2050, 2070, and 2090 under Shared Socioeconomic Pathways SSP2-4.5) and non-bioclimatic variables (soil, habitat heterogeneity index, land use, slope, and aspect) on the habitat suitability and niche dimensions of the critically endangered plant species Commiphora wightii in India. We also evaluate how niche modelling affects its extent of occurrence (EOO) and area of occupancy (AOO). Results The area under the receiver operating curve (AUC) values produced by the maximum entro
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