[1]GU Shi-xian,WANG Xiao-dan,LIU Shu-zhen.The Preliminary Research on Rainfall Erosivity Based on Simple Estimation Method in the Hengduan Mountainous Region of the Eastern Tibet[J].Research of Soil and Water Conservation,2011,18(03):28-31.
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The Preliminary Research on Rainfall Erosivity Based on Simple Estimation Method in the Hengduan Mountainous Region of the Eastern Tibet
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 03
Page number:
28-31
Column:
Public date:
2011-06-20
- Title:
- The Preliminary Research on Rainfall Erosivity Based on Simple Estimation Method in the Hengduan Mountainous Region of the Eastern Tibet
- Keywords:
- rainfall erosivity; region of Hengduan mountainin the Eastern Tibet; simple estimation method
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- The rainfall erosivity is the main factor causing the soil and water erosion,but the classical erosivity estimation method needs the data of rainfall processes which are unavailable in most of the test areas.As for the region of Hengduan Mountain in the Eastern Tibet,this paper aimed to estimate the rainfall erosivity by the simple method based on the data of mean monthly precipitation and mean annual precipitation.Through the comparison and analysis of the various simple models and the related research results,this paper preliminarily stated that the exponential function based on data of the annual precipitation was the first choice of the rainfall erosivity simple estimation method in the region of Hengduan mountain in the Eastern Tibet.The rainfall of the test area was 540.1 mm and the rainfall erosivity of this region was 298.67(MJ·mm)/(hm2·h·a) calculated by the model.
- References:
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