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- Title
Hydrus-3D-Based Study on Water Retention in Chinese Sloping Farmland.
- Authors
Wang, Yingguo; Zhang, Haiou; Sun, Zenghui; Wang, Jian
- Abstract
Soil moisture affects the regional water cycles and the processing of afforestation. However, how the soil moisture varied and distributed along the slope remains unclear. The spatial and temporal variation patterns of soil water transport in sloping farmland with different slopes in northern China were simulated using the Hydrus-3D model. During the soybean growth period, with the increase of the slope of the cultivated land, the soil moisture content in the rainy season shows a trend of decreasing with the increase of the soil depth. Still, in the dry season, the soil water content tends to increase with the increase of soil depth, indicating the deeper layer's more robust water storage capacity. In addition, the change of soil interflow accounted for 60.50, 61.32, and 61.50% of the total flux at a depth of 0–40 cm in different slopes, indicating that the greater the slope of cultivated land, the more significant the change of precipitation on soil interflow. In conclusion, the effect of slope on water pressure and transport of sloping farmland is complicated; the more significant the slope, the greater the outflow of soil interflow and the more moisture loss. Therefore, the sloping cultivated land after remediation should ensure that the slope is gentler as soon as possible.
- Subjects
CHINA; SOIL moisture; SOIL depth; WATER pressure; HYDROLOGIC cycle; WATER storage
- Publication
Eurasian Soil Science, 2023, Vol 56, Issue 10, p1442
- ISSN
1064-2293
- Publication type
Article
- DOI
10.1134/S1064229323600410