To Investigate the Impact of Land Use Change on the Potential Groundwater Recharge on Hillslope With Deep Loess Deposits
Bibliographic Data
| ID | 21647794 |
|---|---|
| Authors | Han Li (0000-0002-4579-9552, Key Research Institute of Yellow River Civilization and Sustainable Development Henan University Kaifeng China), Yiming Cai (0000-0002-4939-1108, River and Lake Conservation Center Ministry of Water Resources China), Min Min (0000-0003-1519-5069, Key Research Institute of Yellow River Civilization and Sustainable Development Henan University Kaifeng China, corresponding author), Ze Tao (0000-0002-7656-5388, School of eco‐Environment Hebei University Baoding China), Bingcheng Si (0000-0002-7497-5033, Department of Soil Science University of Saskatchewan Saskatoon Saskatchewan Canada) |
| Year | 2025 |
| Volume | 36 |
| Issue | 2 |
| Pages | 363-374 |
| Publication date | 2025-01-30 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Land Degradation and Development (JOURNAL) |
| Journal identifiers | ISSN: 1085-3278 • E-ISSN: 1099-145X |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ldr.5364 |
| OpenAlex | W4404013004 |
| Language | EN |
| References cited | 58 |
Accurately estimating groundwater recharge in hilly areas with limited water and thick vadose zones is challenging. This study investigated the impact of land use changes on groundwater recharge at a hillslope scale of Yuanzegou Watershed in China's Loess Plateau. Three adjacent hillslopes were selected for three different land uses: arbor (jujube, Ziziphus jujuba Mill .), subshrub (native grass, Artemisia gmelinii ), and crop (millet, Setaria italica ). Soil cores (as deep as 10–16/18 m) were collected at each of the three landscape positions on a hillslope. Reported tritium profiles in the watershed were used to estimate the net chloride input into vadose zone on hillslope associated with inverse chloride mass balance (CMB) method/chloride accumulation method (CAM). Soil water content and chloride profiles in the study were measured to determine recharge rates at each landscape position beneath different vegetation types. For the first time, we evaluated the actual chloride input into vadose zone on hillslopes as 540.2 ± 23.8 mg m −2 yr. −1 , excluding the impact of runoff. Then, estimated recharge rates ranged from 42.7 ± 3.5 to 62.4 ± 4.7 mm yr. −1 , consistent with nearby studies. Results showed that groundwater recharge does not change with landscape position except for higher value on upslope beneath subshrub hillslope. In contrast, groundwater recharge did significantly reduce by 12.9% ± 5.4% and 26.5% ± 4.5% after conversion from cropland to subshrub/arbor on the hillslope, respectively. Our findings contribute to understanding the ecohydrological effects of land use changes on groundwater recharge on hillslope and help to select suitable afforested vegetation for greening efforts in water‐limited hilly areas, with a priority on groundwater safety
Aquifer · Civil engineering · Earth science · Geomorphology · Geotechnical engineering · Groundwater · Groundwater recharge · Land use · Loess · Engineering · Environmental Science · Groundwater and Watershed Analysis · Hydrology and Watershed Management Studies · Soil Moisture and Remote Sensing · Geology
| Highly cited | No |
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