基于景观格局指数的农村居民点土地利用分区研究

为了对农村居民点的土地利用现状进行分区研究，以临夏县北塬地区为研究区域，采用2010年临夏县土地利用数据为基础，利用景观格局分析软件得到代表北塬地区农村居民点特征的20个景观格局指数，运用主成分分析方法对这20个景观格局指数进行降维处理，得到能够代表这20个景观格局指数的3个指数，即仙侬多样性指数、斑块密度、形状指数。最后，运用聚类分析方法对北塬地区农村居民点进行分区。结果表明：北塬地区农村居民点可以分为4类：第1类为北塬乡、南塬乡；第2类为土桥镇、桥寺乡、先锋乡；第3类为坡头乡、安家坡乡、河西乡；第4类为莲花镇。研究结果对今后的北塬地区土地利用总体规划，农村居民点整理，新农村建设工作具有重要意义。

Study on the Land Use Partition of Rural Residential Based on Landscape Pattern Index

In order to research the current situation of rural residential land use, the author took Beiyuan Area of Linxia County as research area, adapted the land use statistic in 2010 of Linxia County, got 20 landscape pattern index that represented the characteristics of Beiyuan Area rural residential on the basic use of landscape pattern analysis software. Using principal components analysis to reduce these 20 landscape pattern index, getting 3 index that could represent this 20 landscape pattern index, namely Shannon diversity index, patch density and shape index. Finally, the author used clustering analysis method to partition rural residential areas in Beiyuan Area .The results showed that: rural residential in Beiyuan Area could be divided into 4 categories. The first category was the Beiyuan Town and Nanyuan Town. The second category was Tuqiao Town, Qiaoshi Town and Xianfeng Town, the third category was Potou Town, Anjiapo Town and Hexi Township, the fourth category was the Lianhua Town. The results might be of great significance to the future land use planning of Beiyuan Area, rural residential land consolidation and new rural construction.