It is a land of natural ecosystems into artificial ecosystem process, is also a natural, economic, and social factors at the complex process.
它既是一个把土地的自然生态系统变为人工生态系统的过程，也是一个自然、经济、社会诸因素综合作用的复杂过程。
It is a land of natural ecosystems into artificial ecosystem process, is also a natural, economic, and social factors at the complex process.
它既是一个把土地的自然生态系统变为人工生态系统的过程，也是一个自然、经济、社会诸因素综合作用的复杂过程。
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