西北大学学报(自然科学版)
西北大學學報(自然科學版)
서북대학학보(자연과학판)
JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION)
2010年
2期
343-347
,共5页
含沙量变化%水土流失%水质%南水北调中线工程
含沙量變化%水土流失%水質%南水北調中線工程
함사량변화%수토류실%수질%남수북조중선공정
change of sediment concentration%soil erosion%water quality%the middle-route of the South-to-North Water Diversion Project
目的 探讨河流含沙量的变化特征,为减少河流含沙量奠定基础.方法 采用文献分析和野外调研相结合的方法.结果 汉江和丹江各站的含沙量年内变化很不均匀,以荆紫关为例,在汛期含沙量达到3.0 g·m~(-3),而在非汛期为0.含沙量与径流量无明显相关性,与输沙量呈直线相关.结论 水源区的水土流失严重影响着汉江和丹江的含沙量及河流水质.
目的 探討河流含沙量的變化特徵,為減少河流含沙量奠定基礎.方法 採用文獻分析和野外調研相結閤的方法.結果 漢江和丹江各站的含沙量年內變化很不均勻,以荊紫關為例,在汛期含沙量達到3.0 g·m~(-3),而在非汛期為0.含沙量與徑流量無明顯相關性,與輸沙量呈直線相關.結論 水源區的水土流失嚴重影響著漢江和丹江的含沙量及河流水質.
목적 탐토하류함사량적변화특정,위감소하류함사량전정기출.방법 채용문헌분석화야외조연상결합적방법.결과 한강화단강각참적함사량년내변화흔불균균,이형자관위례,재신기함사량체도3.0 g·m~(-3),이재비신기위0.함사량여경류량무명현상관성,여수사량정직선상관.결론 수원구적수토류실엄중영향착한강화단강적함사량급하류수질.
Aim To understand and grasp the characteristics of the change in older to lay the foundation for reducing river sediment.Methods Based on literature analysis and field investigation.Results The change of sediment is asymmetry in a year hydrological stations of Han and Dan River,it shows no clear orrelation between sediment and runoff and presents linear orrelation with diment discharge,take example for Jingzignan,the sediment in the flood season was 3 g·m~(-3),while 0 in the non-flood seasoh.Conclusion Soil erosion in the Shannxi Water Source Area influences seriously the sediment and water quality of Han and Dan River.