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根据景观格局指标体系,从景观类型组成、斑块特征和景观异质性3个方面,对喀什市城市土地景观进行分析.结果表明:1对于城市土地景观格局,林地和耕地是喀什市主要的景观类型,构成了区域的景观优势,是调控城市土地格局稳定性的主要组成部分.2城市土地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.从总体来看,景观多样性复杂,优势度和均匀度明显,具有较高异质性.3通过区域城市土地分析发现喀什市城市土地景观整体上具有明显差异.市外的耕地,林地区域有最高的景观变化特征,市区城市土地景观变化较低,主要是景观结构方面的斑块多样性低,景观类型单一.研究结果可为喀什市合理规划和利用土地资源,保护城市环境,促进绿洲城市可持续发展政策制定提供参考.
According to the index system of landscape pattern, this paper analyzes the urban land landscape in Kashgar from the aspects of landscape type, patch features and landscape heterogeneity.The results show that: 1 For the landscape pattern of urban land, the woodland and cultivated land are the main Landscape types, constitute the regional landscape advantages, is the main part of the regulation of urban land pattern stability.2 The overall pattern of land landscape in urban land is dominated by cultivated land, the patches are relatively uniform, which has a greater impact on the overall spatial landscape pattern. In view of the diversity of landscapes, the dominance and evenness are obvious and have high heterogeneity.3 Through the analysis of the regional urban land, the urban land landscape of Kashi has obvious differences as a whole.Cultivated land and forestland outside the city have the highest landscape The change of urban landscape in urban area is relatively low, mainly due to the low patch diversity and single landscape type in the landscape structure.The results of the study can provide a reasonable plan and use of land resources for the city of Kashi, protect the urban environment and promote the sustainable development of the oasis city Provide reference for development policy making.