摘要
城镇化过程中土地利用变化对生态系统服务价值具有显著影响。本文利用权威性强的国土部门土地变更数据,研究了城镇化过程中生态系统服务价值的变化数量、空间分布,并试图从经济发展、自然本底角度解释变化的原因,结果表明:(1)生态系统服务价值变化速率与经济发展阶段变化基本同步,苏州市自1996年以来生态系统价值下降速度经历了稳定—快速—再稳定的过程;(2)苏州市耕地对生态系统服务正贡献比重最大,城乡建设用地负贡献最大;(3)自然本底条件、经济发展水平等对生态系统服务变化影响较大。根据研究结果,提出了切实加强耕地保护、利用自然本底优势等改善生态环境措施,以期对同类地区,尤其是中西部等欠发达地区提供借鉴和参考。
Land use change significantly affected ecosystem service value in the period of urbanization.This paper studied number changes and spatial distribution of ecosystem service value using the authoritative land sector land change data,trying to explain the reasons for change from the perspective of economic development and natural background.The result is as followings:Firstly,the change rate of ecosystem service value basically synchronized with changes in the stage of economic development.Since1996s,the ecosystem service valuedecliningrate had performed a process of stability-rapid-re-stabilization.Secondly,cultivated land is the largest contributor to ecosystem services in Suzhou,urban and rural construction land simultaneously has the largest negative contribution.Thirdly,natural background conditions and economic development levels have a greater impact on ecosystem services.Based on the study,we suggested measures to improve the ecological environment by strengthening the protection of cultivated land and utilizing the advantages of natural background.We expected to provide reference and reference for similar areas,especially the underdeveloped areas such as the central and western regions.
作者
孙伟晔
吴江国
唐文刚
SUN Wei-ye(The Big Data Management Center of Suzhou Industrial Park,Suzhou 215028, China)
出处
《国土与自然资源研究》
2018年第6期22-26,共5页
Territory & Natural Resources Study
关键词
土地利用
生态系统服务价值
城镇化
时空变化
苏州
Land use
Ecosystem service value
Urbanization
Spatial-temporal variation
Suzhou
