郑州市城市公园绿地生态服务价值动态分析

Dynamic Analysis of Ecological Service Value of Green Space of the City Park in Zhengzhou

以郑州市公园绿地为研究对象,运用国内通用的评估计量方法,对其2016-2018年的生态服务功能价值进行动态分析.结果表明:在5项公园绿地生态服务功能价值的贡献中,其大小顺序为:固碳释氧>保持土壤>涵养水源>净化大气环境>休闲游憩;在11个子生态服务价值指标的贡献中,保肥、释氧、调节水量、固碳的价值共占价值总量的88.31%;郑州市公园绿地在2016年、2017年、2018年的生态服务功能总价值分别为36 400,54 302,61 687万元,增长了40.99%;单位面积公园绿地提供的服务价值约74 591元/(hm^2·a),通过量化郑州公园绿地的生态服务价值,更好地体现绿地生态环境建设的意义.

Taking Zhengzhou park green space as the research object,the ecological service function value of Zhengzhou park green space from 2016 to 2018 was dynamically analyzed by using the general evaluation method.The results showed that among the five contributions of ecological service value of park green space,the order of size was:Carbon fixation and oxygen release>soil conservation>water conservation>atmospheric environment purification>leisure and recreation.Among the contributions of 11 sub-ecological service value indexes,the value of fertilizer conservation,oxygen release,water volume regulation and carbon fixation accounted for 88.31%of the total value.The total value of ecological service functions of Zhengzhou park green space in 2016,2017 and 2018 was respectively,364 million yuan,543.02 million yuan,616.87 million yuan,an increase of 40.99%.The service value of park green space per unit area was about 74591 yuan(/hm2·a).By quantifying the ecological service value of green space in Zhengzhou Park,the significance of green space ecological environment construction can be better reflected.