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[期刊论文] 作者：Liu Guihuan Zhang Huiyuan Wan,
来源：中国人口．资源与环境：英文版 年份：2008
Watersheds provide a variety of ecological services including soil and water conservation, carbon sequestration and biodiversity protection. However, activities...
[期刊论文] 作者：Liu Guihuan,Zhang Huiyuan,Wan,
来源：中国人口·资源与环境 年份：2004
Watersheds provide a variety of ecological services including soil and water conservation,carbon sequestration and biodiversity protection.However,activities in...
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