【摘要】 本研究以额尔齐斯河流域源头两河源保护区为研究对象,从受损区的地形地貌、土壤和地表植被3个方面入手,选择10种恢复措施,布置2种单一措施恢复实验,18种叠加措施恢复试验,通过长期监测,探讨受损区恢复效果与治理成本的相互关系,并据此找出适宜于本区推广的恢复措施。结果表明:(1)采取叠加措施所取得的生态效益较单一恢复措施所取得的生态效益提高了2. 9倍,叠加恢复措施的恢复效果更明显;(2)在低投入的情况下,建议采取粗推+河水漫溢措施,治理成本低廉,适宜大范围推广;在资金充足的条件下,建议采取精推+覆土+人工补植措施,恢复效果显著;(3)本区生态修复过程中,叠加河水漫溢措施后,每单位治理成本收获的生态效益最高,为11,即对矿区生态环境的改善最为显著。更多还原

【Abstract】 In this study the Irtysh River source two heyuan area as the research object,from the abandoned mining area topography and geomorphology,soil and vegetation three aspects obtains,10 kinds of recovery measures,decorate two single measures to restore the experiment,the superposition of 18 kinds of measures to restore the experiment,through long-term monitoring,abandoned mining recovery effect in the process of recovery and the relationship of the cost of governance,and accordingly find out the suitable for the recovery measures of promotion in this area.The results show that:( 1) Single restoration measures can restore the ecology of abandoned mining areas,but the recovery period is long,and the effect of superimposed restoration measures is more obvious;( 2) In the case of low input,it is suggested to adopt rough push + river overflow measures,which is of low cost and suitable for large-scale promotion; Under the condition of sufficient funds,it is suggested to take fine pushing + overlaying + artificial replanting measures,and the recovery effect is significant.( 3) In the process of ecological restoration in the mining area,after superimposing the measures of river overflow,the ecological benefits gained per unit of treatment cost are the highest,that is,the ecological restoration effect is the most significant.更多还原