Relationship between Landform Development and Lake Water Recharge in the Badain Jaran Desert, China
| Autor: | Xiao-Gang Huang, Yan-Dong Ma, Xiao-Qing Luo, Tian-Jie Shao, Jing-Bo Zhao, Da-Peng Yue, Ai-Hua Ma |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:Hydraulic engineering
010504 meteorology & atmospheric sciences Geography Planning and Development gravity water Aquatic Science 010502 geochemistry & geophysics 01 natural sciences Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 desert landforms medicine groundwater overflow zone Precipitation precipitated gypsum and calcite 0105 earth and related environmental sciences Water Science and Technology Transpiration Hydrology geography lcsh:TD201-500 geography.geographical_feature_category recharge mechanism Landform Groundwater recharge Water retention Erosion Environmental science medicine.symptom Surface runoff Groundwater |
| Zdroj: | Water, Vol 11, Iss 10, p 1999 (2019) Water Volume 11 Issue 10 |
| ISSN: | 2073-4441 |
| Popis: | Four distinctive but poorly documented landforms in the Badain Jaran megadunes were studied: arcuate steps, multi-stage fans, depressions formed by runoff erosion, and groundwater overflow zones around lakes. The development of these four landform types indicates the following: (1) The hydrological balance in the sand layers of the megadune areas is positive (2) After evaporation and transpiration, precipitation is able to infiltrate the deep sand layers (3) Precipitation is a source for the groundwater and for many of the lakes of the area. The groundwater recharge mechanism is characterized by intense precipitation events that provide a water source, high infiltration rate, shallow evaporation depth, and low water retention. These factors together enable the precipitation to be transformed into groundwater. The energy of gravity water and the high water film pressure of adsorbed water together provide the forces necessary for effective water recharge. |
| Databáze: | OpenAIRE |
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