干旱区生态环境知识资源中心(Arid): 1933~2012年无定河径流突变与周期特征诊断

Arid

	1933~2012年无定河径流突变与周期特征诊断
其他题名	The Runoff Abrupt Change and Periodic Characteristics of theWudinghe River During 1933-2012
	张健 1; 李同昇 1; 张俊辉 2; 徐象平 3
来源期刊	地理科学
ISSN	1000-0690
出版年	2016
卷号	36 期号:3 页码:475-480
中文摘要	选取黄河中游区实施水土保持最早的一级支流无定河流域,利用滑动-T、曼-肯德尔和山本等3种突变检测方法相互验证,确定了在受人类活动显著影响下,径流的突变年份为1972年,自此径流平均减少3.55*10~8 m~3;基于径流突变前降水与径流的显著相关性,并借助地统计克里格空间插值法,重建1933~2012年无定河流域出口控制水位站天然径流变化序列。采用小波分析法诊断天然径流序列的周期变化,结果显示:天然年径流存在6个不同时间尺度的丰-枯演变特征,其平均周期分别对应着35.5、22.2、16.8、12.2、9.3和3.3 a。
英文摘要	River is the path of water current on the land surface that collection and transmission, and the hydrological response of a catchment and hydrological processes which represents the global changes of the response of the earth′s surface. It is of great importance to study the runoff evolvement process. Changing rules and the influence factors in the Yellow River and would enhance sustainable development of social economy and effectively protect our environment under the reasonable utilization of river basin water resources. If we want to identify the ways of response of runoff to climate change in semi-arid region in northwest of China, the study should be first based on the grasp of the long period evolvement rules of runoff. Based on the observed annual runoff data of the Wudinghe River during 1945-2012, the characteristic of the abrupt change had been diagnosed by employing the methods of Moving t-test technique and Mann-Kendall and Yamamoto. The analysis showed that the annual runoff of the Wudinghe River changed abruptly in 1972, in the year since, the decrease of the runoff is about 3.55*10~8 m~3 on average. Precipitation decrease about 6.28% but runoff decrease about 26.62% on average after the abrupt change of the Wudinghe River runoff during 1933-2012. Although precipitation was the primary factor to affect surface water resource, precipitation was not the main reason for runoff decrease compared with human activities. Then reconstruct the sequence of natural runoff of the Wudinghe River during 1933-2012 according to the significant correlation between precipitation and runoff before 1972. Morlet complex wavelet function was used to transform the sequence of runoff of Baijiachuan hydrologic stationin of the Wudinghe River during 1933-2012. According to wavelet to analyze the periodic characteristics of the natural annual runoff, the results showed that the average period of annual runoff change have multi-scale periods such as 35.5 a, 22.2 a, 16.8 a, 12.2 a, 9.3 a and 3.3 a. It will be able to calculate the influence degree of the natural runoff change because of human activities such as building a reservoir, building a dam that silting land for developing farmland, etc.
中文关键词	年径流 ; 径流突变 ; 周期特征 ; 无定河 ; 黄河中游
英文关键词	annual runoff abrupt change point periodic characteristics the Wudinghe River the Middle Yellow River
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5679213
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234047
作者单位	1.西北大学城市与环境学院, 西安, 陕西 710127, 中国; 2.宝鸡文理学院, 灾害监测与机理模拟陕西省重点实验室, 宝鸡, 陕西 721016, 中国; 3.西北大学学报编辑部, 西安, 陕西 710069, 中国
推荐引用方式 GB/T 7714	张健,李同昇,张俊辉,等. 1933~2012年无定河径流突变与周期特征诊断[J],2016,36(3):475-480.
APA	张健,李同昇,张俊辉,&徐象平.(2016).1933~2012年无定河径流突变与周期特征诊断.地理科学,36(3),475-480.
MLA	张健,et al."1933~2012年无定河径流突变与周期特征诊断".地理科学 36.3(2016):475-480.