农林复合生态系统的生态学原理及生态经济功能研究进展

 农林复合生态系统是一种人工自然复合生态经济系统,对植被恢复和持续发挥土地生产力,具有极为重要的生态经济价值。在综述前人研究的基础上,论述农林复合生态系统生态学原理及生态经济功能的一系列问题:解析农林复合生态系统的定义和基本特征;归纳农林复合生态系统构建的生态学原理和生态经济功能,其中着重说明农林复合生态系统结构组分选择的原则、依据和结构优化的标志,在生态过渡区构建农林复合生态系统,可发挥双向生态缓冲功能。认为:今后农林复合生态系统的研究,应以受干扰较轻的自然生态系统为参照模式,研究农林复合生态系统组分间的生态关系,生物组分生态和谐机制,小尺度的空间异质性对局部生境植被恢复与构建的生态效应,并加强农林复合生态系统的生态定位研究。

Advances on the Ecological Principle and Eco-economics Functions of Agroforestry Ecosystem Establishment

Agroforestry is a artificial and natural complex ecosystem, which has a very important eco-economic value for the vegetation restoration and the sustained development of land productivity. A series of questions about the ecological principles and eco-economic functions of agroforestry was discussed in this paper by summarizing former studies, and the definition of agoforestry and its basic characteristics was analysed. The ecological principles and eco-economic functions for establishing agreforestry ecosystem were summed up. And meanwhile the principles and basis of selecting biological components for establishing agroforestry ecosystem and the standard for structure optimization of agroforestry ecosystem were emphatically point out, and in the ecotone areas the agroforestry ecosystem has a bidirectional ecological buffering function. In the future, in order to explore the relationship among the components in the agroforestry ecosystem, " natural ecosystem" characterized by little disturbance from human beings or nature are suggested to be a reference model for the research of agroforestry ecosystem, and the mechanisms of ecological harmony of the biological components and ecological effects of the small scale of spatial heterogeneity to the vegetation restoration and establishment for local habitat should be studied too. The location research of the agroforestry ecosystem should be strengthened.