Affiliation:
1. Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China
2. College of Resources and Environment University of Chinese Academy of Sciences Beijing China
Abstract
AbstractRunoff and soil loss characteristics on slopes and their responses to soil conservation measures and soil properties have not been fully understood. In the present study, runoff and sediment data from runoff plots with two contrasted soils (i.e., Phaeozenm and Luvisols) at the Liangshigou (LSG) and Erdaogou (EDL) catchments were used to study soil loss characteristics for the black soil region, northeastern China. The implemented soil conservation measures including cross ridge tillage, hedgerow, terrace, level trough, and biological measures can effectively control soil loss at the two sites, whereas the downslope ridge tillage (DRT) and bare plots yielded annual soil loss rates of 1230 t km−2 year−1 in 2014–2015 and 2020 and 580 t km−2 year−1 in 2020 which were much higher than the tolerable value (i.e., 200 t km−2 year−1). Under the same treatments, the Phaeozenm plots yielded much higher soil loss rates than the Luvisols plots, resulting from more erosive rainfall events and higher soil erodibility at the LSG catchment. The typical black region with the Phaeozenm soil should be the priority area to be implemented with soil conservation measures in northeastern China.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Subject
Water Science and Technology
Cited by
3 articles.
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