AN INITIAL APPROACH TO THE REDISTRIBUTION LAWS OF PRECIPITATION ON CONVEX AND CONCAVE HILLSLOPES
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AN INITIAL APPROACH TO THE REDISTRIBUTION LAWS OF PRECIPITATION ON CONVEX AND CONCAVE HILLSLOPES
Bulletin of Soiland Water ConservationVol. 6, Issue 1, Pages: 45-50(1987)
作者机构:
中国科学院西北水土保持研究所
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Published:1987
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Jiang Ding-sheng, Liu Mei-mei, Huang Guo-jun. AN INITIAL APPROACH TO THE REDISTRIBUTION LAWS OF PRECIPITATION ON CONVEX AND CONCAVE HILLSLOPES[J]. Bulletin of Soiland Water Conservation, 1987, 6(1): 45-50.
DOI:
Jiang Ding-sheng, Liu Mei-mei, Huang Guo-jun. AN INITIAL APPROACH TO THE REDISTRIBUTION LAWS OF PRECIPITATION ON CONVEX AND CONCAVE HILLSLOPES[J]. Bulletin of Soiland Water Conservation, 1987, 6(1): 45-50.DOI:
AN INITIAL APPROACH TO THE REDISTRIBUTION LAWS OF PRECIPITATION ON CONVEX AND CONCAVE HILLSLOPES
In the Loess Plateau with broken topograhpy and steep earth's surface
the rain redistribution always takes place on hillslopes. Based on field studies
some conclusions have been drawn by us:1
The relationship between received precipitation on slope and steep degree is expressed by equation P
=Pcosasins [f(1)〕2
The critical value of the unredistribution of precipitation on hillslope is enumerated:7°-7mm
15°-4.3mm
27.5°-3.2mm
30°-2.8mm;3
Change law of soil-moisture storage from hilltop to the slope base= In the dry season
the most soil-moisture storage is situated in the central section of hillslopej after the rain season the soil-moisture storage is increasing little by little down the slope.