【摘 要】
：
本文利用多期不同时空分辨率遥感影像及RTK GPS测量数据,重建不同时空尺度库布齐沙漠沙丘演变过程,分析不同发育阶段沙丘形态特征及变化规律.结果表明,库布齐沙漠主体位于107
【机 构】
：
吉林师范大学生态环境研究所,四平136000北泵帅范大学资源学院,北京100875
【出 处】
：
自然地理学创新与区域可持续发展学术研讨会
论文部分内容阅读
本文利用多期不同时空分辨率遥感影像及RTK GPS测量数据,重建不同时空尺度库布齐沙漠沙丘演变过程,分析不同发育阶段沙丘形态特征及变化规律.结果表明,库布齐沙漠主体位于107° 10′4″～111°25′7″E,39°39′43″～40°48′35″N,面积18 732.24 km2;呈西宽东窄、条带状分布,并被季节性河流分隔;风沙地貌类型有新月形沙丘、灌草丛沙丘、格状沙丘、复合型沙丘、抛物线形沙丘、平沙地等;各类风沙地貌的分布与地形因子具有一定相关性;各类风沙地貌分维值变化不大,表明其处于相对稳定的演化过程中.
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