摘要
根据景观生态学原理,以湘乡市2005年土地利用数据库作为主要信息源,在MapGIS的支持下,从分析湘乡市土地利用现状入手,引入土地数量结构分析中的多样化分析、集中程度分析、区域组合类型分析和区位意义分析,景观格局分析指数中的多样性指数、均匀度指数、优势度指数、破碎度指数,结合土地利用程度指数对湘乡市的土地利用空间格局进行分析。结果表明,湘乡市景观格局总体呈现多样性程度、优势度较高,整个区域景观比较完整,无明显的破碎化现象等特征,但斑块形状较复杂,景观生态系统较不稳定。
Based on the principles of landscape ecology, this paper quantitatively analyzes the spatial pattern of land use in Xiangxiang city under the support of MapGIS, and the land use database of Xiangxiang city in 2005 as major source information. After analysis of the current land utility status in Xiangxiang city, this paper introduces the analysis of land quantity structure （including the analysis of diversification, concentration, types of regional combination and regional significance）, some index of the landscape pattern （including the index of diversity, uniformity, dominance and fragmentation） and the index of land use degree. The results show that the overall landscape pattern of Xiangxiang presents such characteristic as higher degree of multiply and superiority, high integrity of entire region landscape,and no obvious fragmentation phenomenon,but much more complex of the mottling shape and unstable of landscape ecosystem.
出处
《国土与自然资源研究》
北大核心
2009年第2期30-32,共3页
Territory & Natural Resources Study
关键词
土地利用
空间格局
湘乡市
land use
spatial pattern
Xiangxiang City
