金沙江金安桥水电站废弃地植被恢复研究

Vegetation Rehabilitation of Abandoned Areas of Jin'anqiao Hydroelectric Plant of Jinsha River

为了解废弃地植被形成与演替的规律和机理,进而指导水电站废弃地植被的恢复与重建工作,对金沙江金安桥水电站废弃地的植被自然恢复过程及特征进行了调查和分析,结果表明:金安桥水电站废弃地的植物共有49种,分属23科45属;废弃地植物群落的形成是先锋植物种类入侵、定居、群集和竞争的结果,并且草本层的发育要明显好于灌木层;研究区植物群落目前处于次生演替的初级阶段。在今后的植被恢复中,戟叶酸模、白花鬼针草、荩草、扭黄茅、芦苇、含羞草、芨芨草和孔颖草等都是该地区植被恢复的优选物种。

The paper investigates and analyzes on the characteristics and the process of natural vegetation rehabilitation of abandoned areas of Jin'-anqiao Hydroelectric Plant of the Jinsha River for understanding the law and the mechanism of formation and succession of vegetation and for guiding the vegetation rehabilitation and rebuilding.The outcomes show that a) there are 49 species in total,belonging to 45 categories of 23 families in the abandoned areas;b) the formation of plant community is the result of intrusion,settlement,gathering and competition of pioneer plants,and the development of herbaceous layer is obviously better than that of bush layer and;c) at present,the plant community in the studied areas is in primary stage of secondary succession.During the vegetation rehabilitation,Rumex hastatus,Bidens pilosa,Arthraxon hispidus,Heteropogon contortus,Phragmites australis,Mimosa pudica,Achnatherum splendens and Bothriochloa pertusa are the optimized species for vegetation rehabilitation of the areas in the future.