[1]巨仁,赵满礼.固原试区综合治理减沙效益观测初报[J].水土保持研究,1989,(01):144-148.
　Ju Ren,Zhao Manli.The Preliminary Report on Observing Efficiencies of Silt Decreasing in Comprehensive Controlling, Experimental and Exemplary Area, Guyuan County[J].Research of Soil and Water Conservation,1989,(01):144-148.
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固原试区综合治理减沙效益观测初报

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 期数: 1989年01期 页码: 144-148 栏目: 出版日期: 1900-01-01
Title:
The Preliminary Report on Observing Efficiencies of Silt Decreasing in Comprehensive Controlling, Experimental and Exemplary Area, Guyuan County
作者:
巨仁, 赵满礼
Author(s):
Ju Ren, Zhao Manli
摘要:
固原县上黄试区径流小区建立4年来，获得37次起流降雨记录，共1272个数据；还建立了综合治理与不治理的对比观测区，1988年也获得记录。经初步整理，得出坡度、坡长、不同植被、不同雨强与水土流失量的关系，如坡度大于25°时，流失量并不一定随坡度的增加而增加；坡长在40m时，流失量达最大值；草灌乔地土壤流失量较农地减少60—90%以上；不同雨强对流失量影响极大。对比观测区初步结果是综合治理的比不治理的减沙83.3%；根据小区数据估算，全试区15km2减沙61.0%。
Abstract:
Since the runoff plots were established four years ago on Shanghuang Experimental and Exemplary Area, Guyuan County, there were 37 records of runoff-rain and 1272 figures of runoff being obtained.And in 1988, the observing area of comprehensive controlling and no controlling on silt decreasing was also established.Here is a preliminary report about the slope, length of slope, different vegetation cover, different rainfall intensity and soil erosion, For example, when the slope is >25°，the soil erosion uncertainly increases togather with slope increasing; when the length of slope is 40m, the soil erosion reaches maximum; the lands of grasses, shrubs and trees have been less 60-90% or more than corp lands; the effect of rainfall intensity on soil erosion is very tremendous; the soil erosion of comprehensive controlling area has decreased 83.3% than no controlling area; based on the data of runoff plots soil erosion of all experimental area (15km2) was estimated that it has decreased more than 60%.
更新日期/Last Update: 1900-01-01