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首页> 外文期刊>Journal of applied sciences and environmental management >The Growth Performance of Exotic and Indigenous Tree Species in Rehabilitating Active Gold Mine Tailings Dump at Shamva mine in Zimbabwe
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The Growth Performance of Exotic and Indigenous Tree Species in Rehabilitating Active Gold Mine Tailings Dump at Shamva mine in Zimbabwe

机译：津巴布韦Shamva矿区外来和本地树种在修复活性金尾矿库中的生长性能。

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摘要

The objective of the study was to compare the performance of exotic (Eucalyptus grandis and Acacia saligna) and indigenous (Acacia polyacantha and Bauhinia thonningii) tree species in rehabilitating active gold mine tailings dump. The seedlings were produced in a nursery and transplanted onto the tailings dumps during the rainy season in the years 2000, 2001 and 2002. The saplings were monitored for survival rates one year after transplanting and growth performances by measuring root collar diameters and heights. There was no significant difference among the species in survival. The mean height increment of the exotics significantly surpassed indigenous tree species. E. grandis performed best followed by A. saligna. Bauhinia thoningii showed the lowest height increment. Root collar diameters were highest for A. polyacantha, followed by the exotics. There was no significant difference for the mean root collar diameter and height between the exotics. It was concluded that both exotic and indigenous tree species could be used for the rehabilitation of mine tailings.
机译：该研究的目的是比较外来树种（桉树和阿拉伯相思树）和本土树种（相思树和紫荆花）在修复活性金矿尾矿库中的性能。在苗圃中生产幼苗，并在2000、2001和2002年的雨季期间将其移植到尾矿堆上。通过测量根颈直径和高度，监测幼苗在移植后一年的成活率和生长性能。物种之间的存活率没有显着差异。外来物种的平均身高增量大大超过了本地树种。 E. grandis的表现最好，其次是A. saligna。紫荆花显示出最低的高度增量。沙棘的根领直径最高，其次是外来种。外来物种之间的平均根领直径和高度没有显着差异。结论是，外来树种和本地树种均可用于矿山尾矿的修复。

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