基于遥感影像的区域景观格局分析

以资源丰富的南京市浦口区35个村庄为研究对象,基于遥感影像、地理信息技术以及景观生态学理论,分析并揭示区域景观格局演变特征.结合浦口区分村域的景观资源利用指数、资源利用类型指数、居民聚集指数以及产业结构指数构建乡村发展模式.研究结果表明:浦口区域乡村景观格局的变化特征较为明显,呈现出CL景观的快速缩减;研究区的景观格局在人类活动作用下,斑块聚集度增强,多样性指数及均匀度指数均为持续上升,各个景观类型在研究区域表现趋于稳定;最后,根据村域指数分布结果和区域景观资源分布情况,提出生态有机农业型、生态休闲旅游型、生态科学技术型3种发展模式,为促进区域乡村可持续发展提供了科学依据,同时对我国乡村规划建设具有重要的理论意义.

Analysis of regional landscape pattern based on remote sensing images

The research was based on 35 villages in the Pukou District of Nanjing,used the remote sensing,geographic information technology and the concept of landscape ecology,analyzed and revealed the characteristics of rural landscape evolution,and the rural development model is constructed for the landscape resource utilization index,resource utilization type index,resident aggregation index and industrial structure index of Pukou District.The results show that the changing characteristics of Pukou rural landscape pattern are obvious,which is mainly manifested by the shrinking of CL landscape.However,under the influence of human activities,the landscape pattern of the study area was enhanced with patch aggregation,SHDI and SHEI both increasing continuously,and each landscape type tended to be stable in the whole rural area.At the same time,according to the distribution results of sub-village index and distribution of local natural resources,each village was divided into three development modes:Eco-organic Agriculture,Eco-leisure Tourism and Eco-science and technology,which provided a scientific basis for promoting the sustainable development of regional village areas,and has important theoretical significance for rural planning and construction in China regional village.