摘要
[目的]研究典型区域内土地利用变化及其对区域生态系统的影响,旨在为区域国土空间布局优化和山水林田湖草系统治理提供理论依据。[方法]基于多时间节点遥感数据,综合"3S"技术等方法模型,对南太行地区1990—2016年土地利用及生态服务价值变化规律进行研究。[结果]研究区2000—2010年土地利用格局较其他两时间段发生了剧烈变化,其中,旱地减少211.77 km^2,建设用地增加319.78 km^2,各地类动态变化度达到最大值。1990—2016年,南太行土地利用转移类型方面以旱地转为建设用地为主,建设用地复垦为旱地在研究后期逐渐成为耕地补充的重要途径,大量的未利用地得到开发利用,可供开发利用的后备资源越来越少。研究区生态服务价值总量从1990年的2.12×10^10元减少到2016年的1.78×10^10元,减少了3.33×10~9元,建设用地、耕地、林地、草地和水域对生态服务价值总量变化的贡献率分别为-90.19%,-25.75%,-17.51%,-10.93%和44.46%,水温调节与废物处理等生态功能在研究期间受到较大破坏。[结论]河南省南太行地区土地利用及生态系统特征变化明显,进一步平衡建设用地与耕地保护之间的关系,调整土地利用结构,维护生态系统服务功能是研究区国土空间布局优化和生态修复过程中应当重点关注的地方。
[Objective]The change of land use and its impacts on regional ecosystem were studied to provide a theoretical basis for the optimization of spatial layout of regional land and management of mountains,rivers,farmland,lakes,grasslands.[Methods]Based on the remote sensing data of multiple time nodes and‘3S’technology,this research took the South Taihang area of He'nan Province to study the law and changes in land use and ecological service value from 1990 to 2016.[Results]During the period from 2000 to 2010,the land use pattern of South Taihang area changed dramatically in comparison to the other periods.Between 2000 and 2010,dryland decreased by 211.77 km2,construction land increased by 319.78 km2,and the changing degree of each land-use type peaked.From 1990 to 2016,the land-use in the South Taihang area mainly changed from dryland to construction land,although the reclamation of construction land to dryland became a way to supplement farmland in the later period.A large area of unused land was developed and utilized,and the reserve resources available for development and utilization reduced continually.The total value of the ecological services decreased by 3.33 billion from 21.2 billion in 1990 to 17.8 billion in 2016.The contributions of construction land,cultivated land,forest land,grassland,and water areas to the total change of the ecological service value were-90.19%,-25.75%,-17.51%,-10.93%,and 44.46%,respectively.The ecological service functions of water temperature regulation and waste treatment were considerably damaged in the South Taihang area.[Conclusion]The changes of land use and ecosystem characteristics were obvious in the South Taihang area.To balance the relationship between construction land and the protection of cultivated land,the adjustment of the land-use structure and maintenance of ecosystem services are key aspects for optimizing the spatial layout of land and ecological restoration.
作者
马泉来
卫华鹏
王小玉
张正飞
詹玉莹
高凤杰
周浩
Ma Quanlai;Wei Huapeng;Wang Xiaoyu;Zhang Zhengfei;Zhan Yuying;Gao Fengjie;Zhou Hao(The First Institute of Resources and Environment Investigation of He'nan Province,Zhengzhou,He'nan 450007,China;Science and Technology Innovation Centre of Nature Resources of He'nan Provinces(Evaluation Monitoring and Early Warning of Resource Environmental Bearing Capacity),Zhengzhou,He'nan 450007,China;School of Public Administration and Law,Northeast Agricultural University,Harbin,Heilongjiang 150030,China;College of Resources and Environment Sciences,Hu'nan Normal University,Changsha,Hu'nan 410081,China)
出处
《水土保持通报》
CSCD
北大核心
2020年第5期234-241,共8页
Bulletin of Soil and Water Conservation
基金
国家自然科学基金项目“气候变化背景下挠力河流域耕地利用变化水土平衡效应研究”(41671520)。
关键词
南太行地区
土地利用
转移矩阵
生态服务价值
South Taihang area
land use
transition matrix
ecosystem services value
