退化生态系统指在一定的时空背景下，生态系统受自然因素，人为因素或两者的共同干扰下，使生态系统的某些要素或系统整体发生不利于生物和人类生存要求的量变和质变，系统的结构和功能发生与原有的平衡状态或进化方向相反的位移。
灌丛是三峡地区典型的退化生态系统类型。
Shrubland is the typical degraded ecosystems in the Three Gorges Region.
我国是世界上退化生态系统类型最多，山地退化最严重的国家之一。
Our country is one of the countries having the most ecological restoration types and the severest mountain degradation problem.
结果表明：1。退化生态系统木本植物的密度与植被的恢复阶段紧密相关；
The main results are as follows: 1 . Woody plant density in degraded ecosystem is in close relation with restoration stage of vegetation.
应用推荐