[1]Ma Junli,Yang Zhenqi,Guo Jianying,et al.Response of Slope Runoff and Sediment Yield to Land Use in the Pisha Sandstone Area[J].Research of Soil and Water Conservation,2024,31(01):136-143.[doi:10.13869/j.cnki.rswc.2024.01.021]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 01
Page number:
136-143
Column:
Public date:
2024-02-20
- Title:
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Response of Slope Runoff and Sediment Yield to Land Use in the Pisha Sandstone Area
- Author(s):
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Ma Junli1, Yang Zhenqi2, Guo Jianying2, Zhang Tiegang2, Wang Pu3, Ma Peiyuan1
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(1.College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010010, China; 2.Yinshanbeilu National Field Research Station of Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Hohhot 010010, China; 3.Ordos in Dalate Banner water development center, Ordos, Inner Mongolia 017000, China)
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- Keywords:
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Pisha sandstone area; slope runoff and sediment yield; land use type
- CLC:
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S157.1
- DOI:
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10.13869/j.cnki.rswc.2024.01.021
- Abstract:
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[Objective] The study of slope runoff and sediment yield processes in response to different land use type is of great significance for the ecological protection and high-quality development of Pisha sandstone areas. [Methods] The Hantaichuan watershed of the sub-watershed of the ten largest Kongtui was taken as the study area. The rainfall-produced flow and sediment production monitoring data from 2016—2021 in the area were selected. Cluster analysis and two-factor analysis of variance were applied to carry out a continuity and dynamic monitoring study, which in turn revealed the relationship between the temporal and spatial dynamics of the slope runoff and sediment yield in the Pisha sandstone area and different land use types. [Results](1)The rainfall could be divided into three categories according to the duration, intensity and rainfall, including category A(short duration, concentrated rainfall and high intensity), category B(heavy rainfall, short duration, medium intensity), and category C(long duration, light rainfall intensity, scattered rainfall). Category C resulted in the weakest ability of soil erosion.(2)Type A and type B rainfall induced sediment, the order was tree forest<shrub land<artificial grassland<natural grassland<crop land<bare land. The order of type C rainfall-runoff production was tree forest<natural grassland<shrub land<artificial grassland<crop land<bare land, and the order of sediment production was artificial grassland<tree forest<natural grassland<shrub land<crop land<bare land, and the order of runoff depth and soil loss amount of the same land use mode(only bare land and crop land)was C<B<A.(3)The slope effect of runoff depth or soil loss amount on the response of rainfall pattern was slightly different among different land use types, which mainly existed among bare land, crop land and other land use type. [Conclusion] The management and ecological restoration of slope erosion in Pisha sandstone area should take into account the compounding effect of rainfall patterns and slope gradients have on different land use types.