【摘 要】
：
探究高原山区小流域植被覆盖度变化特征,为小流域生态保护和资源利用提供科学参考.选取1989-2017年贵州省黑滩河流域Landsat系列遥感影像,采用像元二分模型等方法反演流域植
【机 构】
：
贵州师范大学 地理与环境科学学院,贵州 贵阳,550025
论文部分内容阅读
探究高原山区小流域植被覆盖度变化特征,为小流域生态保护和资源利用提供科学参考.选取1989-2017年贵州省黑滩河流域Landsat系列遥感影像,采用像元二分模型等方法反演流域植被覆盖度,探究植被覆盖度时空变化以及不同地貌植被变化特征.结果表明:1)1989-2017年黑滩河流域植被覆盖度由61.45％上升到67.49％,2011年后植被覆盖度上升最为明显;2)1989-2017 年黑滩河流域植被覆盖度总体南高北低,其中1989-1996年、1989-2017年南部植被覆盖度上升相对较多;3)1989-2017年黑滩河流域中海拔丘陵区植被覆盖度较高,小起伏低山区植被覆盖度较低,小起伏中山区植被覆盖上升最明显.
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