Owing to the far depart from the centre of the ecosystem,it is easy out of blance for the matter,energy and information in the ecosystem.So,they often are the ecological fragile zone.
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美
- 生态交界带生态系统的结构、功能和物质、能量以及信息的交流与相邻生态系统有密切的联系,但又表现出明显的异质性。