一种利用野地瓜修复矿区植被与土壤的方法初探

Application of Ficus tikoua Bureau in Vegetation Restoration and Phytoremediation Process of Mining Area

为了探索利用野地瓜作为矿区植被修复,特别是尾矿库植被修复先锋植物的可能性,本研究进行了模拟矿区的野地瓜的栽种试验以及尾矿库修复的实际应用试验,并对同一栽培条件下的野地瓜和多年生黑麦草地上部分重金属的含量进行了检测。结果表明,野地瓜能对模拟矿区的植被进行有效的修复,对尾矿库的植被修复也具有一定的效果。试验结果也表明在同一栽培条件下野地瓜对环境中镉、砷、铅、锌的吸收量均高于黑麦草,特别是对镉的吸收野地瓜明显优于黑麦草。该研究为利用野地瓜对矿区植被与污染土壤的修复提供了一定的理论基础。

The paper aims to study the possibility of using Ficus tikoua Bureau as a pioneer plant in vegetationrestoration process of mining area, especially of tailings. This study was carried out with a simulation of amining area and a tailing for the process of vegetation restoration. And heavy metals in the aboveground part of Ficus tikoua Bureau and perennial ryegrass under the same culture condition were also determined. Resultsshowed that： it was effective to use Ficus tikoua Bureau in the process of vegetation restoration andphytoremediation. And results also showed that Ficus tikoua Bureau was better than perennial ryegrass in theuptake of cadmium, arsenic, lead, zinc, especially for the absorption of cadmium. The research provided certaintheoretical references for using Ficus tikoua Bureau in vegetation restoration and phytoremediation process ofmining area.