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陕北子洲县“7·26”特大暴雨引发的 小流域土壤侵蚀调查
王楠1,3; 陈一先1,3; 白雷超2; 王灏霖2; 焦菊英11,2
Source Publication水土保持通报


Other Abstract

[Objective]An extreme rainstorm was occurred in Yulin Region of Shaanxi Province in 26July,
2017,resulting in very serious flood hazards and economic losses.The aims of this paper were to figure out
the hazards of soil erosion in the rainstorm and provide basis for soil hazards defenses.[Methods]Three small watersheds(Qingshuigou,Majiagou and Shejiagou)were selected
as key investigation areas in Zizhou County(the devastated area in this rainstorm)in 2—6August,2017.
Soil erosion of slope croplands,forest and grass lands after cropland abandoned,terraces,fields built by filling
gullies,check dams and roads were investigated and analyzed.[Results]Rills developed evidently in
slope croplands,and even small gullies developed in down slopes.While in forest and grass lands after cropland
abandoned in 2000,sheet erosion was dominant and no obvious rills developed.In the new built terraces,
the roads connecting two terraces,the field surfaces taking over the runoff from the roads,and the
ridge in some sections were washed out seriously,and collapse occurred in the field walls.In fields built by
filling gullies,crops and dam bodies were destroyed severely,the roads beside was eclipsed and the cutting
walls were collapsed.Check dams were damaged more or less,but block runoff and sediment obviously.The
main existing problems were steep slope farming,lacking storage and drainage systems in small watershed,
deficiency in maintenance of soil and water conservation engineering,lower level of economic development,
weak awareness of farmers in soil and water conservation.[Conclusion]Soil erosion under“7·26”extreme
rainstorm was still severe,but it is slight in forest and grass lands after cropland abandoned.It suggested
that soil and water conservation is still very important.Environmental protection measures should continue
to be strengthened,and soil and water conservation,especially steep slope cropland abandonment should be
increased in the fragile Loess Plateau of Northern Shaanxi Province.In the meanwhile,it is necessary to design
and implement the storage,diversion and drainage network system in small watersheds.and water conservation and rainstorm

Keyword“7·26”特大暴雨洪水 土壤侵蚀 坡耕地 退耕地 填沟造地 榆林地区
Indexed By中文核心期刊要目总览
Document Type期刊论文
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
王楠,陈一先,白雷超,等. 陕北子洲县“7·26”特大暴雨引发的 小流域土壤侵蚀调查[J]. 水土保持通报,2017,37(4):338-343.
APA 王楠,陈一先,白雷超,王灏霖,&焦菊英1.(2017).陕北子洲县“7·26”特大暴雨引发的 小流域土壤侵蚀调查.水土保持通报,37(4),338-343.
MLA 王楠,et al."陕北子洲县“7·26”特大暴雨引发的 小流域土壤侵蚀调查".水土保持通报 37.4(2017):338-343.
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