基于3S技术的乌兰布和沙漠范围和面积分析  

A study on the range and area of Ulan Buh Desert based on 3S technology

作　　者：贾鹏[1] 王乃昂[1] 程弘毅[1] 李卓仑[1] 宁凯[1] 张洵赫[1] 梁晓燕[1] 牛震敏 

机构地区：[1]兰州大学资源环境学院,兰州大学干旱区气候变化与水循环研究中心,兰州730000

出　　处：《干旱区资源与环境》2015年第12期131-138,共8页Journal of Arid Land Resources and Environment

基　　金：国家基础科学人才培养基金项目(J1210065);国家自然科学基金(41371114);国家环保公益性行业科研专项(201209034)资助

摘　　要：长期以来,乌兰布和沙漠的范围和面积存在一些争议,影响了相关科学研究的准确性和科学性。文中利用乌兰布和沙漠2010年Landsat-ETM+遥感影像数据和野外考察取得的第一手数据资料,基于3S技术方法,对乌兰布和沙漠范围与界线进行了精确定位和定量分析。最终获得2010年乌兰布和沙漠的范围与面积。结果表明:乌兰布和沙漠位于查哈尔苏木以北;河套平原呼和淖尔以南;哈乌拉山以东;磴口县以西。乌兰布和沙漠东西宽约139.6km,南北长约185.5km,地理位置介于39°41'07″N^40°31'14″N,105°59'45″E^106°41'53″E,面积约为0.9991万km2。The 2010 Landsat ETM ＋ remote sensing image data,RS,GIS and GPS technology were applied to re- position the scope and boundaries of the Ulan Buh Desert based on the new achievements and research in the field of the Ulan Buh Desert. After the image enhancement,synthesis,geometric precision correction,mosaic and split,under the 1： 100,000 relief map,ultimately,we got the range and area of Ulan Buh Desert by using ENVI 5. 0 and Arcgis10. 0 software. The results show that the Ulan Buh Desert locates in the south of the Helan Mountain,north of Ji Lantai and Cha Haersumu,the east of Wu Sulawu mountain- Ha Wula mountain Hao Wenduoer mountain,the west of the Yellow River Deng Kou- Lin He. Ulan Buh Desert is 139. 6 km long from east to west and 185. 5 km from north to south,ranging from 39°41＇07″N- 40°31＇14″N,105°59＇45″E- 106°41＇53″E.The area of Ulan Buh Desert is 0. 9991 million km^2,compared with the data in the Middle of 90＇s,the area of Ulan Buh Desert decreased 0. 759 × 10^3km^2. The main reasons causing the change were human activity and the surrounding oasis processes in the northeast of Ulan Buh Desert.

关 键 词：乌兰布和沙漠 范围 面积 绿洲化 遥感分析 

分 类 号：P931.3[天文地球—自然地理学]