摘要
绿洲寓于荒漠、异于荒漠,但在一定条件下两者互向对立面转化。界外区是互相转化的活跃空间。现状绿洲的界外区,从生态系统梯度分析,不是连续的群落环境梯度而是生态裂谷,它动摇绿洲存续的基础,是沙漠化过程的直接动因。
Oasis existing desert system.It resides in desert but differs from desert,and in some conditions the two systems will chang each other.The region out of Oasis is the space of mutual chang between the two system Because of humans affecty,the region now has been become into ecologi- cal rift,and it just shakes the base of Oasis existing and is the cause of desertification.
出处
《新疆环境保护》
1990年第2期13-16,共4页
Environmental Protection of Xinjiang
