石漠化土地是自然社会经济的复合系统。
Rocky desertification land is a multiple system composed by nature and economic society.
本文选择自然环境恶劣的石漠化地区的环境卫生作为研究对象，以求在田野调查点上有所突破。
In this paper, the author choice the karst rocky desertification areas as a research object, in the field investigation points to make some breakthroughs.
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