Its compositional ichthyofauna differs from its consecuting fiver systems,and has momentous significance on succession of fishes and ichthyofauna dividatur in watershed of North China.
Halosere A plant community in a succession that starts on land periodically inundated by the sea. Haloseres include salt-and flooding-tolerant pioneer communities on mudflats and saltmarshes.
Hippophae rhamnoides L.subsp.sinensis is a heliophyte tree,so that some scholars consider it as a pioneer population,but others regard that the tree regenerate well in natural conditions.
The green and budding twigs may represent existing species; and those produced during former years may represent the long succession of extinct species.
We must be cautious in attempting to correlate as strictly contemporaneous two formations, which do not include many identical species, by the general succession of the forms of life.
干扰可以阻止演
渡
，从流动沙丘开始。
大
义。
例子描述生态
。
星们的代表角
的节目。
