中国作为古老的农业大国，土地开发历史悠久，土地利用和土地覆盖类型多种多样。
Owing to the old agriculture Great Power, China has long history of land development and various types of land use and land cover.
中国作为古老的农业大国，土地开发历史悠久，土地利用和土地覆盖类型多种多样。
Owing to the old agriculture Great Power, China has long history of land development and various types of land use and land cover.
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