排土场边坡人工沙棘灌丛对风滚植物的固留作用及生态效应

Fixation and ecological effects of artificial Hippophae rhamnoides boskage on wind-rolling plants in slop of refuse dump.

沙棘灌丛对风滚植物有非常好的固留作用 ,可以在草原矿区排土场边坡形成大面积的风滚植物覆盖层 ,从而影响沙棘的正常生长 .但风滚植物覆盖层比人工沙棘植被有着更好的水土保持和土壤培肥效果 ,当覆盖层腐烂后 ,会出现更繁茂的植物群落 .因此 ,沙棘对风滚植物的固留可促进排土场植被恢复和水土保持 .

Wind-rolling plants can be fixed by artificial boskage of Hippophae rhamnoides in the slope in refuse dump,and formed some big plant coverage,which could be affected the growth of H.rhamnoides.However,the plant coverage was better than the artificial boskage of H.rhamnoides to soil and water conservation and fertilized soil.Moreover,flourishing vegetation would develop after the plant coverage was decayed.Therefore,the fixation of wind-rolling plant by H.rhamnoides could improve the restoration of vegetation and the soil and water conservation in refuse dump in open-cast mining area.