[1]GUO Xiao-ding,LIU Xiao-jun,HUANG Ping-ping,et al.Study on the Mechanism for the Response of Soil Erosion and Nutrient Losses to Different Land Uses—Taking Yingwugou Watershed As an Example[J].Research of Soil and Water Conservation,2014,21(05):18-23.
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Study on the Mechanism for the Response of Soil Erosion and Nutrient Losses to Different Land Uses—Taking Yingwugou Watershed As an Example
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 05
Page number:
18-23
Column:
Public date:
2014-10-28
- Title:
- Study on the Mechanism for the Response of Soil Erosion and Nutrient Losses to Different Land Uses—Taking Yingwugou Watershed As an Example
- Keywords:
- land use; rainfall patterns; sediments and runoff; nutrient losses
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- Based on different local crops, the author studied sediment, runoff and nutrient loss in sloping land under natural rainfall by experiment conducted in the field runoff plots in Yingwugou watershed in Shangnan County. The results showed that slope gradient has little impact on runoff, sediment yields are significant difference. The sediments and runoff form grass plot are both less than other crop plots which indicates that the runoff and conversation of soil can be adjusted by land cover. With the increase of runoff, the sediments keep larger and the sediment contents increase with rise of slope gradients except the corn plots. Rainfall patterns and slope degree have different impacts on nutrient losses from plots. The short-time rainstorm is easier for the loss of total phosphorus, available phosphorus and ammonia nitrogen, so do slope gradients impact on the total nitrogen; the concentrations of nitrate nitrogen losses the plots with high gradient are generally low except grass plot; the ammonia nitrogen is more readily maintained in grass plot.
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