shrub

The natural situation of the vegetation of savanna shrub & grass in Jingshajiang dry-hot valley, and basic theory of community succession as well as two regeneration ways of natural succession and artificial afforestation are all discussed.

论述了金沙江干热河谷稀树灌草丛植被区自然概况,植物群落演替基本理论及封山育林(自然演替)与人工造林(人工促进恢复)2种恢复方式区基本情况。

From the increase of soil patchiness scale in the thicketization of steppe,it is suggested that the transition from steppe to thicketization-steppe dominated by Caragana microphylla patches could be irreversible once this threshold is passed.

运用状态与过渡模式的观点,从植被组成的变化探讨锡林河流域灌丛化草原形成的阈值;从土壤斑块性尺度增强进一步说明草原灌丛化的阈值一旦跨越,这种转变将是难以逆转的,最终会形成以小叶锦鸡儿灌丛斑块占优势的灌丛化草原。