globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-20-4747-2016
Scopus记录号: 2-s2.0-85002273567
论文题名:
Hydrological recovery in two large forested watersheds of southeastern China: The importance of watershed properties in determining hydrological responses to reforestation
作者: Liu W; , Wei X; , Li Q; , Fan H; , Duan H; , Wu J; , Giles-Hansen K; , Zhang H
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期:12
起始页码: 4747
结束页码: 4756
语种: 英语
Scopus关键词: Forestry ; Recovery ; Reforestation ; Soil conservation ; Stream flow ; Water conservation ; Water management ; Forest change ; Forest recovery ; Forested watersheds ; High flow ; Hydrological response ; Po-yang lakes ; Southeastern china ; Watershed management ; Watersheds ; climate change ; hydrological response ; low flow ; reforestation ; statistical analysis ; streamflow ; watershed ; China ; Jiangxi ; Poyang Lake
英文摘要: Understanding hydrological responses to reforestation is an important subject in watershed management, particularly in large forested watersheds (> 1000km2). In this study, we selected two large forested watersheds (Pingjiang and Xiangshui) located in the upper reach of the Poyang Lake watershed, southeastern China (with an area of 3261.4 and 1458km2, respectively), along with long-term data on climate and hydrology (1954-2006) to assess the effects of large-scale reforestation on streamflow. Both watersheds have similar climate and experienced comparable and dramatic forest changes during the past decades, but with different watershed properties (e.g., the topography is much steeper in Xiangshui than in Pingjiang), which provides us with a unique opportunity to compare the differences in hydrological recovery in two contrasted watersheds. Streamflow at different percentiles (e.g., 5, 10, 50 and 95%) were compared using a combination of statistical analysis with a year-wise method for each watershed. The results showed that forest recovery had no significant effects on median flows (Q50%) in both watersheds. However, reforestation significantly reduced high flows in Pingjiang, but had limited influence in Xiangshui. Similarly, reforestation had significant and positive effects on low flows (Q95%) in Pingjiang, while it did not significantly change low flows in Xiangshui. Thus, hydrological recovery is limited and slower in the steeper Xiangshui watershed, highlighting that watershed properties are also important for determining hydrological responses to reforestation. This finding has important implications for designing reforestation and watershed management strategies in the context of hydrological recovery. © Author(s) 2016.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78677
Appears in Collections:气候变化事实与影响

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作者单位: Institute of Ecology and Environmental Science, Nanchang Institute of Technology, Nanchang, China; Department of Earth and Environmental Sciences, University of British Columbia (Okanagan Campus), 1177 Research Road, Kelowna, BC, Canada

Recommended Citation:
Liu W,, Wei X,, Li Q,et al. Hydrological recovery in two large forested watersheds of southeastern China: The importance of watershed properties in determining hydrological responses to reforestation[J]. Hydrology and Earth System Sciences,2016-01-01,20(12)
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