乌鲁木齐市“十二五”期间土地利用类型变化

Land Use Variation in the City of Urumqi during the 12th Five-Year Plan

按照《HJ192-2015生态环境状况评价技术规范》土地利用类型分类方法,借助计算机监督分类手段,研究了乌鲁木齐市"十二五"期间土地利用类型变迁。结果表明,"十二五"末该市建设用地、林地、草地较初期净迁入74.15km^2、42.78km^2、35.65km^2,未利用地、耕地、水域则净迁出101.26km^2、35.65km^2、15.69kcm2。沙依巴克区、头屯河区、新市区、天山区土地利用类型总变化率均超过19%,而水磨沟区、达坂城区、米东区、乌鲁木齐县均不足8%。沙依巴克区、头屯河区、新市区建设用地与未利用地迁入较多,米东区与水磨沟区各土地利用类型变化率均低于2%,达坂城区与乌鲁木齐县草地与未利用地变幅较大。

The paper presented the changes of land use types in the city of Urumqi using supervised classification method based on the classified method from the technical criterion for ecosystem status evaluation （ HJ192 -2015） during the 12th Five - Year Plan （2011 - 2015 ） . The results showed that there were a net area increase of 74. 15km^2, 42.78km^2, and 35.65km^2 in construction land, forest, and grassland, which raised by 16.61%, 6. 90% , and 0. 57% comparing with that of 2011. While unused land, arable land, and water showed net reduc-tion of 101. 26km^2 , 35. 65km^2 , and 15. 69km^2 with the change rates of - 1.81% 、 - 3 . 31%、 - 5. 24% , re-spectively. The sum change rate of all land use types in Shayibake, Toutunhe, Xinshi and Tianshan districts excee-ded 19% . However, the change rates in Shuimogou district, Dabancheng district, Midong district and Urumqi County were less than 8%. In Shayibake, Toutunhe, and Xinshi districts, the land use changes primarily showed increases in construction land and unused land. The change rates of different land use types in Midong and Shuimo-gou districts were lower than 2% . In addition, large variation of unused land appeared in Dabancheng district and Urumqi County.