change of land cover 土地覆盖变化
Techniques of classification are very importance for Land Use and Cover Change(LUCC).
分类方法在土地利用和土地覆盖变化研究中占据重要的地位。
The Land Use and Cover Change process of the large-scale open mining area include: the land excavation, the land occupied, the land piled up.
大型露天矿区土地利用/覆盖变化过程包括：土地挖损、土地压占和土地占用。
In all, land cover is the key field of global change research.
土地覆盖是全球变化研究中的关键内容。
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