Depth-Dependent Seasonal Variation of Soil Water in a Thick Vadose Zone in the Badain Jaran Desert, China
نویسندگان
چکیده
منابع مشابه
Water Loss Due to Increasing Planted Vegetation over the Badain Jaran Desert, China
Water resources play a vital role in ecosystem stability, human survival, and social development in drylands. Human activities, such as afforestation and irrigation, have had a large impact on the water cycle and vegetation in drylands over recent years. The Badain Jaran Desert (BJD) is one of the driest regions in China with increasing human activities, yet the connection between human managem...
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Despite prevailing dry conditions, groundwater-fed lakes are found among the earth's tallest sand dunes in the Badain Jaran Desert, China. Indirect evidence suggests that some lakes are shrinking. However, relatively few studies have been carried out to assess the regional groundwater conditions and the fate of the lakes due to the remoteness and severity of the desert environment. Here we use ...
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Previous studies proposed various hypotheses to the formation of the mega-dunes and water recharge of the lakes in the Badain Jaran Desert but left the coexistence of lake-dune pattern unsolved. This research found that the local circulation, generated from the differences of thermodynamic properties and the unique landscape settings between lakes and mega-dunes, can be applied to interpret the...
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Estimation of soil moisture distribution in desert regions is challenged by the deep unsaturated zone and the extreme natural environment. In this study, an entropy-based method, consisting of information entropy, principle of maximum entropy (PME), solutions to PME with constraints, and the determination of parameters, is used to estimate the soil moisture distribution in the 10 m deep vadose ...
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A multiphase model (UTCHEM v.6) has been modified to account for boundary conditions present in the vadose zone, as well as adding an analytic solution for the soil temperature profile, the temperature dependence of physicochemical properties, and revised interphase mass transfer correlations. The model also includes biodegradation, which is limited by moisture content, oxygen and pollutant ava...
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ژورنال
عنوان ژورنال: Water
سال: 2018
ISSN: 2073-4441
DOI: 10.3390/w10121719