中文摘要：

从景观类型组成、斑块特征和景观异质性3个方面分析景观格局特征的基础上，运用主成份分析，根据格局指标对保持结构与功能的能力，建立景观稳定性综合评价模型，对土地利用景观稳定性评价。结果表明，①对于土地利用景观格局，林地和耕地是常德市l丰要的景观类型，构成了区域的景观优势，是调控土地利用格局稳定性的主婴组成部分。土地利用景观整体格局中耕地占优势，斑块相对均匀，对景观总体空间格局影响较大，其他农用地、牧草地、未利用地、居民点工矿用地居次。从总体来看，景观多样性复杂，优势艘和均匀度明显，具有较高异质性；②通过区域土地利用稳定性的分析评价，常德市土地利用景观稳定性整体上具何明显差畀。桃源县有最高的景观稳定性，然后依次为石门、澧县、鼎城、临澧、汉寿5县（区）。武陵区土地利川景观稳定忡最低，主要是景观结构方血的斑块多样性低，景观类型单一。

英文摘要：

Land use reflects stability of the ecological process in land use pattern. Stability is the characteristic of land use and durative of ecological process, reflecting the coordinate between regional land use patterns and environmental condition. This article selects such elements as landscape pattern acreage, landscape number, patch number rate, patch density, patch average, average patch area, patch change coefficient, patch shape in- dex, diversity index, landscape dominance index, landscape evenness, fractal dimension, etc., to analyse land- scape pattern from landscape pattern structure, landscape pattern patch characteristics and landscape pattern het- erogeneity. Based on the characteristic of landscape pattern through principal components analysis, it estab- lished landscape stability synthetic evaluation system for evaluation of land use landscape stability. Results show that, 1） cultivated land and woodland are the main part of landscape pattern in Changde City. They are im- portant in controlling land use landscape stability. In the whole of landscape pattern, the cultivated land is in a dominant position, has a great significance on landscape overall spatial framework.. At the same time, not ex- ploited land, agricultural land, land for urban and rural housing and public facilities, land for mining use and livestock farming are in minor status. Farmland patches are evenly disposed, transportation land patches form are complicated. On the whole, the landscape diversity is rich, the advantages and evenness are obvious, and the overall spatial framework is different. 2） Through the research of land use stability in Changde City, we know that, the difference of stability in land use landscape is obvious. Taoyuan County is most stable, and the order of the stability is Shimen, Lixian, Dingcheng district, Linli, Hanshou. Wuling district is most unstable, and the di- versity of landscape patches is poor, landscape pattern is single. 3） Structure is able to determine function, this article researched land