The high value of NDVI has close relationships with water supply, altitude and vegetation types, so NDVI is relatively high near water sources and is the highest in meadow grassland.
从空间分布看，NDVI高值区与水源、海拔高度和植被类型有很大关系，在水源附近区域ND VI值相对较高，草甸型草场NDVI值最高。
The high value of NDVI has close relationships with water supply, altitude and vegetation types, so NDVI is relatively high near water sources and is the highest in meadow grassland.
从空间分布看，NDVI高值区与水源、海拔高度和植被类型有很大关系，在水源附近区域ND VI值相对较高，草甸型草场NDVI值最高。
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