为分析丹江口库区消落带土地利用空间格局及土地资源特点,基于2013年丹江口水库调水前无人机采集的库区0.5 m数字正射影像,对库区蓄水前的土地利用现状进行遥感监测.结合行政区划图和1:50000数字高程模型提取的150,160,163.5,170 m水位淹没线、坡度图,采用空间分析与地理统计方法,研究了丹江口库区调水前的土地利用现状特点.结果表明:150~160 m,160~170 m消落带面积分别为227.1 km2,194.3 km2;消落带主要分布在淅川、丹江口、郧县;耕地是消落带区域内最主要的用地形式,且主要分布在淅川.监测结果为丹江口库区消落带管理提供了数据基础.%To analyze the spatial pattern of land-use and characteristics of land resources in Danjiangkou water-lev-el-fluctuating zone, land-use status quo is monitored through remote sensing based on 0.5 m Digital Orthphoto Map in the reservoir area acquired through unmanned aerial vehicle by 2013 before impoundment of the reservoir area. Moreover, the characteristics of land-use status are studied using spatial analysis and geostatistical methods in asso-ciation with administrative map, slope map and 150 m, 160 m, 163.5 m, 170m water flooding lines extracted from 1 : 50000 Digital Elevation Model. Results show that the areas of water-level-fluctuating zone are 227.1 km2 and 194.3 km2 at elevation 150-160 m and 160-170 m, respectively. Water-level-fluctuating zones are mainly distribu-ted in Xichuan, Danjiangkou and Yunxian County. Arable land is the main land form in the fluctuating zone and is mainly distributed in Xichuan. The monitoring results provide a data basis for the management of Danjiangkou wa-ter-level-fluctuating zone.
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