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本文研究了社会经济因素对当地植被多样性的作用,并利用数学模型分析了中国封丘县农田景观中植被多样性的主要干扰因素。发现在小尺度上,植被多样性与景观组成和机构紧密相关这一观点没有证据支持。相比较而言,植被多样性受人为干扰的影响较大,而且与作物种类和经济来源紧密相关。这主要是因为中国农区经济行为拥有特殊格局,包括联产承包责任制以及农民外出务工流。提出了在政策环境的变化下如何维持当地植被多样性的现状。
This paper studies the effect of socio-economic factors on the diversity of local vegetation and uses mathematical models to analyze the main disturbing factors of vegetation diversity in farmland landscape in Fengqiu County of China. On the small scale, there is no evidence to support the notion that vegetation diversity is closely related to landscape composition and institutions. In contrast, vegetation diversity is more affected by anthropogenic disturbances and is closely related to crop species and economic sources. This is mainly because of the peculiar pattern of economic activities in rural areas in China, including the responsibility system for remuneration of peasant production and peasant migrant workers. Proposed how to maintain the diversity of local vegetation under the change of policy environment.