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Study and Realization of Automatic Extraction Method for Gully Erosions in Northwest Loess Plateau Area
Pages: 16-19
Year: Issue:  4
Journal: Journal of Gansu Sciences

Keyword:  侵蚀沟道DEM谷底线流域界;
Abstract: 为提高西北黄土高原区侵蚀沟道自动提取的完整性和准确性,达到第一次全国水利、水土保持普查的要求,对侵蚀沟道谷底线和流域界的自动提取方法进行了研究,给出了提取的谷底线源头与实际位置有较大差异、大数据量的处理等关键问题的解决方法,实现了西北黄土高原区侵蚀沟道的自动提取.
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