[1]WANG Zhi-jie,JIAN Jin-shi,JIAO Ju-ying,et al.Estimation of Sediment Delivery Ratio in Different Soil Erosion Regions in the Songhua River Basin Based on RUSLE[J].Research of Soil and Water Conservation,2013,20(05):50-56.
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Estimation of Sediment Delivery Ratio in Different Soil Erosion Regions in the Songhua River Basin Based on RUSLE
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 05
Page number:
50-56
Column:
Public date:
2013-10-28
- Title:
- Estimation of Sediment Delivery Ratio in Different Soil Erosion Regions in the Songhua River Basin Based on RUSLE
- CLC:
- S157.2
- DOI:
- -
- Abstract:
- In order to understand the soil erosion and sediment delivery characteristics of black soil zone in northeast of China, the spatial and temporal variation characteristics of sediment delivery ratio (SDR) of the different soil erosion regions in the Songhua River basin was analyzed by choosing the 8 hydrological control zone in the different erosion regions, using the RUSLE model, and combining with the sediment hydrological data. The results showed: (1) the main soil erosion intensity of different soil erosion regions in Songhua River basin was slight erosion and mild erosion, the soil erosion modulus of different soil erosion regions was as an order of hilly-gully region Ⅰ > hilly-gully region Ⅱ > natural forest region > rolling hills region; (2) the average SDR of different soil erosion regions in Songhua River basin was sorted as rolling hills region > hilly-gully region Ⅱ > hilly-gully region Ⅰ > natural forest region; (3) the different interannual SDR of same soil erosion region fluctuation was caused by the influence of rainfall. However, from 1960s to 1980s, the average SDR in different periods was not obviously changed in the natural forest region and hilly-gully erosion Ⅱ, and fluctuation increased in the rolling hills region and hilly-gully region Ⅰ due to the influence of human activity. The study would have the guiding significance to understand the soil erosion and sediment delivery characteristics of the black soil zone in northeast of China, and to clarify the soil erosion mechanism and management object of this region.
- References:
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1900-01-01