Journal of Arid Environments, 2015, Vol.120, p.42(9)
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jaridenv.2015.04.005 Byline: Lulu Zhang, Christian Podlasly, Karl-Heinz Feger, Yanhui Wang, Kai Schwarzel Abstract: Large-scale vegetation restoration and climate change triggered a significant decline in runoff in the middle reaches of the Yellow River and its tributaries. This runoff decline intensifies inherent water shortage and results in more severe water use conflicts that are threatening sustainable development in the Loess Plateau. Innovative strategies for more water-efficient land management are essential. To this end, the factors controlling runoff were investigated using the upstream area of the Jing River as an example. Runoff was found to be mainly controlled by evaporative demand, precipitation, and land cover type. Budyko's frameworks were applied to predict the annual and long-term runoff; however, the effect of changes in land management (e.g., afforestation) on runoff cannot be assessed due to lack of vegetation factors. Therefore, an empirical analysis tool was derived based on an existing relationship for runoff estimation. This method was found to be more effective in reproducing the annual and long-term runoff than others. The incorporation of temporal changes in land cover and form in approach enables the estimation of the possible impact of soil conservation measures (e.g., afforestation or terracing). Our study highlights the importance of adaptive land management strategies for mitigating water shortage on the Loess Plateau. Author Affiliation: (a) Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), United Nations University, 01067, Dresden, Germany (b) Institute of Soil Science and Site Ecology, Faculty of Environmental Sciences, Technische Universitat Dresden, 01737, Tharandt, Germany (c) Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, 100091, Beijing, China Article History: Received 27 May 2014; Revised 2 March 2015; Accepted 7 April 2015
Water Resource Management – Analysis ; Water Resource Management – Methods ; Land Management – Analysis ; Land Management – Methods ; Ecological Restoration – Analysis ; Ecological Restoration – Methods ; Global Temperature Changes – Analysis ; Global Temperature Changes – Methods ; Afforestation – Analysis ; Afforestation – Methods ; Water Use – Analysis ; Water Use – Methods ; Loess – Analysis ; Loess – Methods ; Precipitation (Meteorology) – Analysis ; Precipitation (Meteorology) – Methods ; Runoff – Analysis ; Runoff – Methods
Cengage Learning, Inc.