铜矿区废弃地生态修复适生树种筛选

打开文本图片集

中图分类号 X171.4 文献标识码A 文章编号 1007-7731（2025）16-0040-04

DOI号 10.16377/j.cnki.issn1007-7731.2025.16.010

AbstractTo screen plant materials suitable for bioremediation，this experiment，based on the site characteristics and pollutiondegreeof heavy metalcontaminated soil inthederelictcopper miningland，thesurvivalrates of 21plant species including Photinia × fraseri and Nandina domestica from 2021 to 2023 were studied through field experiments. The results showed that in July 2O22，there were 14 types of plants with a survival rate of over 70% ，including Photinia × fraseri，Nandina domestica，andLigustrum lucidum.InJuly 2O23，there were three types of plants with asurvivalrate of over 70% ，namely Ginkgo biloba，Ligustrum lucidum，and Lagerstroemia indica，with survival rates of 98.00% ， 87.78% ，and 100.00% respectively. The survival rate of Ligustrum lucidum in December 2O21 and July 2022 was relatively high，reaching 100.00% . OnJuly 20，2023，the survival rates of the tree species including Phylostachys edulis from high to low were as follows：Ginkgo biloba （ 98.00% ） > Ligustrum lucidum （ 87.78% ） > Celtis sinensis （ 60.00% ） > Camphora officinarum （# 56.00% ） > Phyllostachys edulis （6.67 % ）.The survival rates of small tree species from high to low were as follows： Lagerstroemia indica （10o.00%） > Prunus pseudocerasus （37.50%） > Acer palmatum （21.05 % ） > Litsea cubeba （10.32%） > Citrus medica （8.97 % ）. The survival rates of shrubs，vines and herbs （including Indocalamus tessellatus）from high to low were as follows： Indocalamus tessellatus （50.0%）> Sedum lineare （47.50%）> Loropetalum chinense var.rubrum （37.89% ）） > Jasminum mesnyi （22.67% ） > Nandina domestica （19.0o%） >Ligustrum japonicum‘Howardii’（11.67%） >Photinia ×fraseri （5.33% ）. In conclusion，Lagerstroemia indica， Ginkgo biloba，and Ligustrum lucidum can be used as tree afforestation species for ecological restoration incopper mining lands.This article provides technical support for the selection of tree species for the ecological restoration of abandoned mining lands.

Keywordsderelict copper mining lands; plant materials; ecological restoration; plant survival rate

矿山历经多年的开采后，会形成矿山废弃地。（剩余3408字）