摘要
基于遥感影像TM数据对窟野河流域1987—2009年植被覆盖度进行了提取和对比分析。结果表明:通过近年来的综合治理工作,窟野河流域1987—2009年植被覆盖度总体呈现增长的好势头,其中1987—2000年植被状况变化较小,植被覆盖度较低;自2000年植被覆盖度有较大提高,2009年局部地区植被覆盖度相对下降。研究表明,利用TM影像计算归一化植被指数从而提取植被覆盖度的方法,可以快速准确地对区域植被生长状况进行动态监测。
Based on TM remote sensing image data, the vegetation coverage of Kuye River basin in 1987 - 2009 period was extracted and comparatively analyzed. The results show that through the comprehensive management work in recent years, the overall vegetation coverage of Kuye River basin is increased. The vegetation coverage status in 1987 -2000 period changes gently and the vegetation coverage is low. Since 2000, the vegetation coverage has been increased greatly, but local vegetation coverage is relatively declined in 2009. The research shows that the vegetation coverage extraction method by computing normalized vegetation index from TM image can dynamically monitor the regional vegetation growth condition rapidly and accurately.
出处
《人民黄河》
CAS
北大核心
2013年第2期70-71,共2页
Yellow River
