HYDROLOGICAL RESPONSES TO ECOLOGICAL MANAGEMENT OF THE LOESS HILLY-GULLY AREA, CHINA

	HYDROLOGICAL RESPONSES TO ECOLOGICAL MANAGEMENT OF THE LOESS HILLY-GULLY AREA, CHINA
	Liu, Erjia 1,2,3; Zhang, Xiaoli 1,2,3; Zhang, Xiaoping 4,5; Luo, Zhidong 1,6; Wang, Aijuan 6; Li, Zhiguang 6
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2017
卷号	26 期号:10 页码:5917-5928
关键词	The change of streamflow and sediment load Ecological restoration Contribution The Loess hill-gully area
ISSN号	1018-4619
通讯作者	Zhang, Xiaoli(zhang-xl@263.net)
英文摘要	The Loess Plateau is known as one of the most severe soil erosion sites in the world. Over the last six decades, soil and water conservation measures have been implemented on the Loess Plateau, China, including the construction of terraces and warping dams, vegetation restoration, and the 'Grain for Green Program', resulted in the land cover change. In this study, we focused on analysing the variation characteristics of streamflow-sediment behaviours and quantitatively calculating the effects of climate changes and human activities on annual streamflow and sediment load in the upper reaches of the Beiluo River of the Loess Plateau with extensive vegetation restoration. The daily hydrological data over the period of 1963-2011 were summed to assess the variation characteristics. The non-parametric Mann-Kendall test, Spearmen method and Pettitt's test were used to identify trends and shifts in hydrological factors. Moreover, the relative changes of the stream flow and sediment load were analysed around the change points. To further confirm the calculation results of the impacts of climate change and anthropogenic activities on annual streamflow and sediment load, the double-mass curve, correction coefficient methods and empirical hydrologic methods based on precipitation were used. The results showed that under the background of precipitation with no significant trend, both the streamflow and sediment load had a significant negative trend (P<0.01) with an average annual rate of -0.26 mm/a and -172 t/km(2). a. The annual streamflow decreased related to decreasing high flow (5%) in the flood season in subsequent years, whereas an increase in low flow (95%) was identified in the non-flood season. Two change points were detected in 1979 and 2002 for stream flow and sediment yield annually and in the flood season at the significance levels of p<0.05 and p<0.01, respectively, mostly because of the change point of the high flow in the flood season. Compared with PI (1963-1979), the dimension of the induction in the average sediment load was greater than the streamflow. The extreme ratio and the coefficient of variation about them in different periods after the change point also changed. Meanwhile, the stream flow for 5% and 50% decreased in PIE (1980-2002) and PHI (2003-2011), respectively, and increased for 95%. The extent of the reduction in sediment load was greater than that of streamflow with the periods altered, and the changes in sediment load were negative. It was estimated that human activities including the underlying surface changes and conservation measures in PII accounted for 38.2% and 51.4% of the changes in streamflow and sediment load, respectively. In PILE, the effects reached 74.7% and 86.7%, respectively. The great improvement in the ecological environment on the Loess Plateau has already revealed the advantages of biological treatments in reducing flood volumes and compensating streamflow on a regional scale. The results can provide theoretical basis for water resource management and water and soil conservation for the administrators.
资助项目	National Natural Science Foundation of China[41230852] ; National Natural Science Foundation of China[41101265] ; Chinese Academy of Science[KZZD-EW-04-03] ; Chinese Academy of Science[KZCX2-XB3-13]
WOS关键词	YELLOW-RIVER BASIN ; MIDDLE REACHES ; FLOW REGIME ; CHECK-DAM ; PLATEAU ; TRENDS ; WATER ; CLIMATE ; STREAMFLOW ; VARIABILITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PARLAR SCIENTIFIC PUBLICATIONS (P S P)
WOS记录号	WOS:000413499500029
资助机构	National Natural Science Foundation of China ; Chinese Academy of Science
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62473]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Xiaoli
作者单位	1.Beijing Forestry Univ, Forestry Coll, Beijing 100083, Peoples R China 2.Beijing Forestry Univ, Key Lab Precis Forestry, Beijing 100083, Peoples R China 3.Beijing Forestry Univ, Prov Key Lab Forestry Cultivat & Conservat, Beijing 100083, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling 712100, Shanxi, Peoples R China 5.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shanxi, Peoples R China 6.Minist Water Resources, Soil & Water Conservat Monitoring Ctr, Beijing 100053, Peoples R China
推荐引用方式 GB/T 7714	Liu, Erjia,Zhang, Xiaoli,Zhang, Xiaoping,et al. HYDROLOGICAL RESPONSES TO ECOLOGICAL MANAGEMENT OF THE LOESS HILLY-GULLY AREA, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2017,26(10):5917-5928.
APA	Liu, Erjia,Zhang, Xiaoli,Zhang, Xiaoping,Luo, Zhidong,Wang, Aijuan,&Li, Zhiguang.(2017).HYDROLOGICAL RESPONSES TO ECOLOGICAL MANAGEMENT OF THE LOESS HILLY-GULLY AREA, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,26(10),5917-5928.
MLA	Liu, Erjia,et al."HYDROLOGICAL RESPONSES TO ECOLOGICAL MANAGEMENT OF THE LOESS HILLY-GULLY AREA, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 26.10(2017):5917-5928.