干旱区生态环境知识资源中心(Arid): 用水文特征参数变化表征人类活动的水文效应初探--以云州水库流域为例

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	用水文特征参数变化表征人类活动的水文效应初探--以云州水库流域为例
其他题名	Assessing Hydrological Effects of Human Activities by Hydrological Characteristic Parameters:A Case Study in the Yunzhou Reservoir Basin
	张蕾娜; 李秀彬
来源期刊	资源科学
ISSN	1007-7588
出版年	2004
卷号	26 期号:2 页码:62-67
中文摘要	该文以地处半干旱地区的河北省张家口云州水库流域为研究对象,基于多年径流变化规律,探讨和归纳了评估流域人类活动水文效应的若干参数,并就这些参数值进行了分析.结果表明:研究时段内,研究流域年均流量呈明显的下降趋势且波动幅度明显减小,年均降水的上升或下降趋势并不太明显,径流变化对降水变化的响应程度趋于迟缓,而年径流系数、平均洪峰流量、径流年内分配不均匀系数、径流变差系数等水文特征参数均表现出下降趋势,初步得出了云州水库流域径流量的变化主要是土地利用和小水利工程建设等人类活动作用结果的结论.
英文摘要	The impacts of land use and land cover change on hydrology is a focus task at present. In this pa-per , based on the analysis of runoff change in the Yunzhou reservoir basin, hydrological characteristic param-eters which are tokens of hydrological impacts of human activities are selected and analyzed. The annual mean runoff from 1972 to 1991 is 1.33 m3/s and annual mean precipitation is 440.3mm.This change trend of these two factors during this study periods indicates that annual mean runoff falls obviously but its degree of change becomes more and more weaken while the change of annual mean precipitation is not too obvious. In order to have a further analysis, prophase (from 1972 to 1981) and anaphase (from 1982 to 1991) are parted by 1981 . Statistical indexes including standard deviation and coefficient of elasticity about the annual mean run-off and precipitation in two periods are calculated. Standard deviation of runoff in two periods is 0.63 and 0.24 while precipitation is 69.9 and 68.0. Elasticity of these two factors is 0.009 and 0.004 in prophase and anaphase . This trend shows the degree of runoff change responding to precipitation change goes weaken. Fi-nally hydrological characteristic parameters such as annual mean runoff coefficient, mean peak flow, distribu-tion uneven coefficient of runoff and variation coefficient of annual runoff which can assess hydrological effects of human activities are analyzed. Annual mean runoff coefficient is 9.3 % in prophase while 6.8% in an-aphase and annual mean peak flow is 20.3m3/s and 18.7mVs. Distribution uneven coefficient of runoff is 0.9 and 0.8 while variation coefficient of annual runoff is 0.4 and 0.2.These parameters all show a down-ward trend. So the reason of runoff change is human activities such as more land use change and hydraulic engineers building. In conclusion, it' s a simple and good way to indicate hydrological effects of human activ-ities using hydrological characteristic parameters.
中文关键词	云州水库流域 ; 人类活动 ; 水文效应 ; 水文特征参数 ; 土地利用变化
英文关键词	Yunzhou reservoir basin Human activities Hydrological impact Hydrological characteristic pa-rameter Land use change
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Mineralogy
CSCD记录号	CSCD:1567468
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/378448
作者单位	张蕾娜, 中国科学院地理科学与资源研究所, 北京 100101, 中国.; 李秀彬, 中国科学院地理科学与资源研究所, 北京 100101, 中国.
推荐引用方式 GB/T 7714	张蕾娜,李秀彬. 用水文特征参数变化表征人类活动的水文效应初探--以云州水库流域为例[J],2004,26(2):62-67.
APA	张蕾娜,&李秀彬.(2004).用水文特征参数变化表征人类活动的水文效应初探--以云州水库流域为例.资源科学,26(2),62-67.
MLA	张蕾娜,et al."用水文特征参数变化表征人类活动的水文效应初探--以云州水库流域为例".资源科学 26.2(2004):62-67.