摘要
该文根据2000、2015年两期生态系统宏观结构数据,分析了2000-2015年长江经济带生态系统格局演变特征及主要驱动力、人类活动对生态系统的扰动程度。结果表明:2000-2015年,长江经济带农田生态系统面积净减少了19564 km^2,聚落生态系统面积净增加了20181 km^2。各省(市)的人类扰动指数均有所增加,其变化程度总体呈现从东向西递减的趋势。城镇扩张、生态保护与修复、水资源开发、农业开发等对长江经济带生态系统格局变化的贡献率分别为37.65%、30.82%、21.42%和10.11%。为保护长江经济带生态系统可持续发展,需优化城镇化空间格局,加大生态保护力度,促进经济社会发展与人口、资源、环境相协调。
On the basis of ecosystem spatial pattern datasets of 2000 and 2015,this paper analyzed the evolution characteristics and main driving forces,disturbance degree to ecosystems caused by human activities in the Yangtze River Economic Belt from 2000 to 2015.The results showed that the net area of farmland ecosystem decreased by 19564 km2,while the net area of settlement ecosystem increased by 20181 km2 during the study period.The anthropogenic disturbance index at provincial scale of the Yangtze River Economic Belt was increased,and the changing degree was overall declined from east to west.The contribution rates of urban expansion,ecological protection and restoration,water resources development and agricultural development to ecosystem pattern changes were 37.65%,30.82%,21.42%and 10.11%,respectively.In order to protect ecosystem sustainable development of the Yangtze River Economic Belt,it is necessary to optimize spatial pattern of urbanization,increase intensity of ecological protection,and promote coordination of economic and social development with population,resources and environment.
作者
吴丹
邹长新
林乃峰
徐梦佳
WU Dan;ZOU Changxin;LIN Naifeng;XU Mengjia(Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing 210042,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2020年第4期208-213,共6页
Environmental Science & Technology
基金
江苏省自然科学基金(BK20180111)
国家重点研发计划(2017YFC0506606)
关键词
生态系统
转移矩阵
人类扰动指数
驱动力
长江经济带
ecosystem
transition matrix
anthropogenic disturbance index
driving force
the Yangtze River Economic Belt
