苏州市吴中区13a生态环境质量变化与保护对策  

Analysis on Dynamic Change Process of the Ecological Environment Quality of 13 a of Wuzhong District in Suzhou City and Its Countermeasures

作　　者：李辉[1] 王钊齐[1] 杨悦[1] 李建龙[1] 毛刚 浦惠民 李志刚 秦惠平 王轲 陈燕芳 徐超 

机构地区：[1]南京大学生命科学学院,江苏南京210093 [2]苏州市吴中区环保局,江苏苏州215104 [3]西宁市虎台中学,青海西宁810008

出　　处：《宁夏大学学报（自然科学版）》2017年第2期207-213,共7页Journal of Ningxia University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(41271361);APN全球变化基金资助项目(ARCP2014-06NMY-Li);苏州市科技计划基金资助项目(SNG201447);江苏省农业三新工程基金资助项目(SXGC[2014]287);江苏省自然科学基金资助项目(BK20140413);苏州市吴中区生态红线区域保护规划基金资助项目(2014WZHB01)

摘　　要：对苏州市吴中区2000—2013年的生态环境质量动态变化进行定量分析,为该地区生态环境质量的保护与改善提供对策.基于CASA模型,根据苏州市吴中区2000,2013年的遥感和气象数据,模拟该地区的NPP动态变化,并利用监督分类法,得出该地区土地覆被动态变化,并结合气候变化规律,分析生态环境质量动态变化的原因.结果表明,2000—2013年,苏州市吴中区净初级生产力减少了0.8Gg,共有406.41km2土地覆被发生转化,占吴中区土地覆被总面积的18.15%,植被厚度、生态承载力和碳汇量在减少,平均每年按1.09%的速度下降;苏州市吴中区快速的城市化进程,造成大量覆被NPP高的土地转化成覆被NPP低的土地,其生态环境质量呈变差趋势.The article quantitatively analyzes the dynamic change of ecological environment quality in Wuzhong district of Suzhou city from 2000 to 2013 to provide countermeasures for the protection and improvement of ecological environment quality in this area. It obtained by simulation the NPP dynamic change of the area based on CASA model and remote sensing and according to meteorological data of Wuzhong district of Suzhou city from 2000 to 2013 and obtained dynamic change of land cover in this area with the method of supervised classification. It also analyzed the cause of ecological environment dynamic change according to climate change law. The result shows that, the net primary productivity reduced 0.8 Gg; the land cover of overall 406.41 km^2 changed, accounting for 18.15% of total land cover area in Wuzhong city from 2000 to 2013; the thickness of vegetation, ecological carrying capacity and carbon sequestration amount decreased at an annual declining speed of 1.09 %. The fast urbanization process in Wuzhong district of Suzhou city caused a large amount of high NPP covered land changed into low NPP one and the ecological environment tend to degrade.

关 键 词：苏州市吴中区 土地覆被变化 生态环境质量指数 生态指数 

分 类 号：F205[经济管理—国民经济]