【摘要】 基于昌都市2000、2005、2010和2015年Landsat遥感影像土地利用情况,研究2000—2015年土地利用的变化情况与土地利用变化的空间格局特征。结果表明,昌都市以草地占主要优势,各地类面积比例从大到小依次为草地>林地>未利用地>水域>耕地>建筑用地。2000—2015年草地面积减少量最多,减少101.89 km~2;未利用地面积增加量最大,增加118.42 km~2,主要由草地转入;水域与耕地面积变化量很小,几乎维持不变。2010—2015年土地利用变化范围较前10年更广,有向内部方向变化的趋势。更多还原

【Abstract】 Based on the land use of Landsat remote sensing images in Changdu in 2000, 2005,2010 and 2015, this paper studied the changes of land use and the spatial pattern characteristics of land use changes from 2000 to 2015. The results showed that Changdu City was dominated by grassland, the area ratio of each category in descending order was grassland>forest land>unused land>water area>cultivated land>construction land.From 2000 to 2015, the grassland area decreased the most, with a decrease of 101.89 km~2;the unused land area increased the most, with an increase of 118.42 km~2, which was mainly transferred from grassland; the amount of water area and cultivated land changed very little and remained almost unchanged.The scope of land use change from 2010 to 2015 was wider than that of the previous 10 years, and there was a tendency to change in the internal direction.更多还原