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Open AccessArticle

Impacts of Land-Use and Land-Cover Changes on Water Yield: A Case Study in Jing-Jin-Ji, China

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School of Nature Conservation, Beijing Forestry University, Qinghua East Road 35, Haidian District, Beijing 100083, China
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Eawag, Swiss Federal Institute of Aquatic Science and Technology, Uberlandstrasse, 133, 8600 Dubendorf, Switzerland
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Department of Environmental Science, MGU, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland
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EnviroSPACE, Institute for Environmental Sciences, University of Geneva, Bd Carl-Vogt 66, 1205 Geneva, Switzerland
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Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Xueyuan Road 1088, Nanshan District, Shenzhen 518055, China
*
Author to whom correspondence should be addressed.
Sustainability 2018, 10(4), 960; https://doi.org/10.3390/su10040960
Received: 8 March 2018 / Revised: 18 March 2018 / Accepted: 19 March 2018 / Published: 26 March 2018
Knowing the impact of land-use and land-cover (LULC) changes on the distribution of water yield (WY) is essential for water resource management. Using the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model, we investigated the spatial-temporal variations of WY from 1990 to 2015 in China’s northern semi-arid region of Beijing–Tianjin–Hebei (Jing-Jin-Ji). We quantified the combined effects of LULC dynamics and climatic variation on WY. Furthermore, we identified the relative contribution of main LULC types to WY. For our study region, the built-up area increased by 35.66% (5380 km2) during the study period. In the meantime, cropland, grassland, and wetland decreased continuously. The expansion of built-up area and decline of vegetated land led to an increase of 1047 million m3 (5.1%) in total WY. The impacts of LULC changes on WY were mainly determined by the biophysical characteristics of LULC composition. Vegetated land has relatively lower WY coefficients due to higher rates of evapotranspiration and water infiltration. Built-up areas and bare land have higher WY coefficients as a result of their impermeable surface. The spatial-temporal analysis of WY with specification of WY coefficients by LULC types can facilitate integrated land-use planning and water resource management. View Full-Text
Keywords: water yield; land use and land cover changes; InVEST; Jing-Jin-Ji water yield; land use and land cover changes; InVEST; Jing-Jin-Ji
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MDPI and ACS Style

Li, S.; Yang, H.; Lacayo, M.; Liu, J.; Lei, G. Impacts of Land-Use and Land-Cover Changes on Water Yield: A Case Study in Jing-Jin-Ji, China. Sustainability 2018, 10, 960.

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