土地整治驱动下土地利用和景观格局变化研究——以上海市合庆镇为例  

CHANGES IN LAND USE AND LANDSCAPE CAUSED BY LAND CONSOLIDATION——A CASE STUDY OF HEQING TOWN IN SHANGHAI

作　　者：宁秀红[1] 赵敏[1] 

机构地区：[1]上海师范大学城市生态与环境研究中心,上海200234

出　　处：《长江流域资源与环境》2016年第1期79-87,共9页Resources and Environment in the Yangtze Basin

基　　金：国家自然科学基金青年基金项目(31100354);上海地方本科院校"十二五"内涵建设项目~~

摘　　要：基于上海市合庆镇土地整治项目,通过土地利用指数、空间自相关性以及景观格局指数的分析：（1）土地整治带来的区域土地利用变化情况;（2）验证土地整治是否能起到土地集聚的作用;（3）使用景观格局指数分析土地利用空间配置关系。结果表明,整治后的项目区内建设用地明显减少,耕地数量明显增加,并且土地利用程度综合指数等土地利用指数同土地整治活动之间存在相关性。使用全局空间自相关分析方法能够很好地验证土地整治活动对土地产生的集聚效应,并且在5-10m的格网尺度下采用土地利用程度修正模型能很好地反映建设用地和耕地的局部集聚效应。此外,区域由以农业活动和非农业活动并存转向以农业活动为主,“斑块-廊道-基质”的景观结构变化显著。Land remediation can adjust the spatial structure of land use and land cover to optimize spatial distribution and pattern of land use. We used land use indices, spatial autocorrelation and landscape indices to study land consolidation projects of Heqing Town in Shanghai. The purpose is： （1） to investigate how land use changes at the regional level as a whole; （2） to investigate whether land consolidation can play a role in intensive conservation land use; （3） to analyze the spatial configuration using landscape indices. The results showed that construction land area decreased and gathered in space obviously, arable land area increased. In addition, there are correlations between land use degree index, entropy of land use structure, rural road network density, farmland channel density and agricultural facilities density and land consolidation activities. However, it is difficult for Land use equilibrium to reflect the impacts of land remediation activities. Using the global spatial autocorrelation analysis method we can verify that land consolidation activities had the combined effect. The correction land use degree model can reflect the combined effect of construction and arable land at the grid of 5 m×5 m-10 m×10 m. Moreover, all kinds of land use types changed intensively. One of the results is to make the farm patches have a fragmentation, homogenization, centralization and regularization characteristic. The land consolidation project makes the study area transformed from agricultural activities and non-agricultural activities coexist to agriculture-based activities. At the same time, dynamic evolution of the landscape pattern is very significant. As for patch, it includes that farm land fragmented, internal homogeneity enhanced, shape complicated; the edge effect strengthen for farming land, rural road land and river to make it easy circulating material and energy. Corridor expressed as the density of ditches, roads, river increased to have a result that ＂road into the net, river interlinked

关 键 词：土地整治 土地利用 景观格局 上海市合庆镇 

分 类 号：F301.2[经济管理—产业经济] P901[天文地球—自然地理学]