中国中北部农区树种结构变化及其生态影响初探
China Development(2014)
Abstract
针对中国中北部农区松柏增多、榆树类树木减少这一现象,该文分析了产生的原因,从生态角度阐述了这一现象在淡水资源浪费、生物多样性等多个方面的深远影响,并提出了遏制这一现象的政策建议。
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Key words
food security,biodiversity,ecological impact,policy proposal
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