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[1]DENG Lingzhi,YANG Zhenhua,SU Weici.Valuing the Water Ecosystem Service and Analyzing Its Impact Factors in Chongqing City Under the Background of Urbanization[J].Research of Soil and Water Conservation,2019,26(04):208-216.

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Valuing the Water Ecosystem Service and Analyzing Its Impact Factors in Chongqing City Under the Background of Urbanization

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 04 Page number: 208-216 Column: Public date: 2019-06-11

Title:: Valuing the Water Ecosystem Service and Analyzing Its Impact Factors in Chongqing City Under the Background of Urbanization

Author(s):: DENG Lingzhi¹, YANG Zhenhua², SU Weici³; School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China;
2. School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510000, China;
3 Guizhou Institute of Mountain Resources, Guiyang 550001, China

Keywords:: water ecosystem; service value; impact factor; urbanization

CLC:: X143;TV213.4

DOI:: -

Abstract:: In order to analyze the temporal variation characteristics and influencing factors of water ecosystem service value under the urbanization background, we use Person correlation analysis to obtain the main influencing factors, and further make a regression analysis on the main influencing factors of water ecosystem service on the basis of the evolution characteristics of service value of water ecosystem in Chongqing City from 2001 to 2015. The results showed that the value of water ecosystem services in Chongqing City had the fluctuating growth trend in the past 15 years, and the value of water ecosystem product supply, regulation and pollutant degradation was the main value, accounting for 66.44% of an average annual value; at the same time, the value of water ecological regulation and storage increased by 48.301 billion yuan, the proportion increased to 41.06%; it became the most valuable service type in the water ecosystem, while the value of water ecological cultural was the smallest, with an average annual growth rate of only 2.36%. In addition, the key influencing factors of water ecosystem service value in Chongqing City were the permanent population, urbanization level, sewage discharge, per capita GDP, vegetation coverage, ecological water demand, and there are significant positive correlations with water ecological product supply,water ecological regulation and storage, water ecological maintenance, water ecological cultural service value (the mean R² value was 0.74). The results showed that the fitting degree of each regression model was high, and the influence of each factor on the water ecosystem services was significant. These studies not only lay a foundation for the analysis of the impact mechanism of water ecosystem service value, but also provide the decision-making reference for regional water ecosystem planning, development, utilization and protection.

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