跨越式发展下的乌鲁木齐土地利用变化及生态风险分析

Analysis of Land Use Change and Ecological Risks in Leaps Development of Urumqi

研究采用乌鲁木齐市2005─2010年的土地利用数据,分析了5年来城市土地利用变化及其生态风险。结果表明:在2005─2010年间,乌鲁木齐市的土地利用类型未发生较大的变化,但各个类型的土地利用面积发生了显著变化,耕地与草地的面积有了明显的下降,居民点与工矿用地及交通用地的面积增长显著。从生态系统服务功能价值的总体变化看,乌鲁木齐市的生态服务价值呈下降趋势,耕地及草地生态服务功能价值明显降低。在各单项生态服务功能中,食物生产和原材料的服务价值下降明显,而娱乐文化功能有了显著增加。

Adopt the data of Urumqi city land use from 2005 to 2010, this paper analyzed the urban land use change in five years and their ecological risk. The results showed that in 2005--2010, the land use types of Urumqi eity had not been great ehanges, but each type of land use area of varied significantly, cultivated land and grassland area had significantly reduced, the area of ruining land and residential areas, the traffic land had significant growth. From the overall ehange of ecosystem services value, eeologieal serviee value of Urumqi was declined, the ecological service function value of cultivated land and grassland were decreased obviously. In the single ecological service function, the service value of food production and material were significantly deereased, and the function of enter- tainment culture has increased significantly.