Dynamic variations in ecosystem service value and sustainability of urban system: A case study for Tianjin city, China
Dynamic variations in ecosystem service value and sustainability of urban system: A case study for Tianjin city, China
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DOI：
10.1016/j.cities.2015.05.007
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发表时间：
2015-08
期刊：
影响因子：
6.7
通讯作者：
Minggao Xue;Yangmei Luo
中科院分区：
文献类型：
--
作者：
Minggao Xue;Yangmei Luo
中国的快速城市化和工业化已经严重威胁到生态系统和城市的可持续性。本文估算了快速城市化条件下土地利用/土地覆盖变化对生态系统服务价值的动态变化，并分析了其对城市系统可持续性的影响。选择中国最大的沿海城市天津作为研究区域。2003年天津市社会服务总价值约为879186万元，2007年约为794804万元，2011年约为837853万元。以总的动态ESV为关键因子，计算了2003 - 2011年的城市可持续性指数。结果表明，土地利用变化引起的生态系统价值动态变化对城市系统的可持续性具有重要影响。因此，在快速城市化过程中，通过合理的土地利用管理，减轻城市生态系统的负担，是提高城市可持续发展能力的迫切需要。
Rapid urbanization and industrialization in China have seriously threatened the ecosystem and urban sustainability. This paper estimated the dynamic variations of ecosystem service value (ESV) in response to changes of land use/land cover (LULC) under rapid urbanization, and it analyzed their impacts on sustainability of urban system. Tianjin, the largest coastal city in China, was selected as the study area. The total ESV of Tianjin was approximately 8791.86 million Yuan in 2003, 7948.04 million Yuan in 2007, and 8378.53 million Yuan in 2011. By taking the total dynamic ESV as one of the key factors, we calculated the indexes of urban sustainability from 2003 to 2011. It was found that the dynamic variations of ESV in response to LULC changes had significant impacts on the sustainability of urban system. Therefore, in order to increase the capacity for urban sustainable development, there is an urgent need to lighten the heavy burden on the ecosystem through rational land use management during rapid urbanization.