沈阳市2004—2014年城市绿地生态系统变化及生态服务价值差异

Urban Green Space Ecosystem Changes and Differences in Ecological Service Value in Shenyang City from 2004-2014

利用2004—2014年沈阳市统计年鉴数据,运用Costanza提出的生态服务价值指标的计算方法,选取水源涵养、固碳、释氧、吸收SO_2、吸收NOX、滞尘、降低噪声和降低温度8项指标,评价沈阳城市绿地生态服务价值的变化,运用全排列多边形图示指标法,分析2004—2014年城市绿地系统生态服务功能差异.结果表明:2004—2014年,沈阳市绿地系统生态服务总价值由911.69×10~6元增加到1 085.25×10~6元,沈阳市城市绿地系统生态服务价值各项分指数逐年增加,其中,水源涵养价值分指数、释氧价值分指数和降低噪音价值分指数较高.沈阳市绿地系统11年间生态服务价值综合指数分别为0.000、0.007、0.039、0.086、0.123、0.474、0.559、0.417、0.877、0.883、0.750.

Based on the Shenyang statistical yearbook data2004-2014and the calculation methods of the ecological service value index put forward by Costanza,eight indexes including water conservation,carbon fixation,oxygen releasing,SO2absorption,NO X absorption,dust absorption,noise reduction and temperature reduction were selected.The changes of ecological service value on urban green space in Shenyang were evaluated.Moreover,the method of entire-array-polygon diagram index was adopted to analyze the difference of ecological service function of urban green space system in Shenyang from2004-2014.The results show that the total value of ecological service of green space system in Shenyang increased from911.69×10^6yuan RMB(2004)to1085.25×106yuan RMB(2014).The individual sub-indices of ecological service value of urban green space system in Shenyang from2004-2014increased year by year,among which water conservation value sub-index,oxygen release value sub-index and noise reduction value sub-index were all high.During eleven years,the yearly comprehensive index of ecological service value of green space system in Shenyang was0.000,0.007,0.039,0.086,0.123,0.474,0.559,0.417,0.877,0.883and0.750.