Unsaturated soil
EstimatE of GroundwatEr rEcharGE BasEd on watEr BalancE in thE unsaturatEd soil ZonE
... the soil regarding the month in question and the previous ...different soil use has a maximum water retention capacity, depending on the root-zone extension within the unsaturated zone ...
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Collapsibility and Volume Change Behavior of Unsaturated Residual Soil
... saturated soil is not suitable to be used for the testing of unsaturated ...set-up, unsaturated soil can be tested with various levels of applied matric suction and net mean stress in a ...
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A modification of the mixed form of Richards equation and its application in vertically inhomogeneous soils
... a soil data map that include information about vertical soil properties like soil type, care must be taken in solving RE to model unsaturated soil water flow in layered soils, because ...
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SIMULATION OF MOISTURE PROFILES IN A LATOSSOL IN DOURADOS REGION, IN THE STATE OF MATO GROSSO DO SUL, BRAZIL
... of unsaturated soil water flow at process-level is essential to develop proper management actions for environmental protection in agricultural ...of soil water flow that has been used worldwide is ...
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Braz. J. Geol. vol.45 número2
... in unsaturated soil is a key input parameter for modeling subsurface water and solute ...estimate unsaturated K-values from porous aquifers found in the Federal District of ...diferent soil ...
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Water in the critical zone: soil, water and life from profile to planet
... the soil is most commonly described by the Richards (1931) equation, re- stating, for an unsaturated soil, Darcy’s (1856) law that the rate of flow is proportional to the pressure ...the soil, ...
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Stability Analysis and Stability Chart for Unsaturated Residual Soil Slope
... to soil properties and soil behavior have been developed for temperate zone soils, and there has been difficulty in accurately modeling procedures and conditions to which residual soils are subjected [1,2] ...
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Effect of biochar and liming on soil nitrous oxide emissions from a temperate maize cropping system
... the continuous concentration measurement (resolution 1 per min) when chamber lids were closed. Data from the first 3 min of the total 15 min closure time were omitted from the flux calculation to remove signal noise due ...
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Pedotransfer functions for Irish soils – estimation of bulk density (<i>ρ</i><sub>b</sub>) per horizon type
... ues could be attributed to each soil mapping unit using Irish SIS into the future. Potentially this data could then be com- bined with known carbon data to produce a soil carbon map to 1 m. The data could ...
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Organic wastes from bioenergy and ecological sanitation as a soil fertility improver: a field experiment in a tropical Andosol
... Andosols occupy just 1–2 % of the land area worldwide. They are common in high-altitude tropical environments, such as in the East African Rift Valley (Chesworth, 2008; Perret and Dorel, 1999). Their high inherent ...
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The economics of soil C sequestration and agricultural emissions abatement
... target soil carbon mea- ...additional soil carbon sequestration, at minimal cost to ...their soil condition and what they had planned to do with their ...
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Citrate and malonate increase microbial activity and alter microbial community composition in uncontaminated and diesel-contaminated soil microcosms
... the soil. Soil (5 g) was mixed with diatomaceous earth (1 : 1), packed into a 33 mL extraction cell and extracted with 50 % acetone and 50 % hexane at 200 ◦ C and 1500 psi, with a static time of 5 min, a ...
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Deriving pedotransfer functions for soil quartz fraction in southern France from reverse modeling
... sity Soil Physics, Raleigh, USA), Tusheng Ren (China Agricultural University, Beijing, China) and a third anonymous referee for their review of the manuscript and for their fruitful ...
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Soil denitrifier community size changes with land use change to perennial bioenergy cropping systems
... influence soil microbial community functioning. In particular, soil den- itrifying communities represent an ideal subset of the soil mi- crobial community to target to assess changes in ecosystem ...
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Three-dimensional soil organic matter distribution, accessibility and microbial respiration in macroaggregates using osmium staining and synchrotron X-ray computed tomography
... of soil (diameter and length 50 mm) was collected from a field that had been under pas- ture for more than 15 years (British National Grid reference metres; E 463 374, N 331 992) in Keyworth (near Notting- ham, ...
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<sup>14</sup>C in cropland soil of a long-term field trial – experimental variability and implications for estimating carbon turnover
... into soil carbon dynamics. For soil radiocar- bon, an important tracer for understanding these dynamics, experimental variability across replicates is usually not accounted for; hence, a relevant source of ...
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The use of soil electrical resistivity to monitor plant and soil water relationships in vineyards
... evaluate soil water capacity on the basis of the physiological response of ...between soil wa- ter at field capacity and soil water measured when plants are no longer able to extract water from the ...
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Small scale spatial heterogeneity of soil respiration in an old growth temperate deciduous forest
... scales within a given site. Thus, an approach spanning various spatial scales seems to be adequate. Therefore, in the present study we adopted a three-fold strategy. First, we set up nested groups of sampling plots. ...
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Responses of soil respiration and its temperature/moisture sensitivity to precipitation in three subtropical forests in southern China
... with soil moisture (Xu and Qi, 2001; Curiel Yuste et ...of soil respiration to soil moisture. In general, soil respiration increases with the rising of soil moisture when soil ...
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METODOLOGIA DOS TRABALHOS TRABALHO DE CAMPO
... 1970 — Soil Taxonomy of National Cooperative Soil Survey. 1949 — Method of making mechanical analysis of soil[r] ...
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