广东大宝山矿区周边植被现状及矿区植被恢复重建

Analysis of Vegetation Actuality and Restoration in Dabaoshan Mining Field,Guangdong Province

文章通过对广东韶关大宝山矿区及周边地区的实地调查,发现矿区现有植被类型以草丛和灌草丛为主,矿区周边则以自然次生常绿阔叶林、常绿和落叶阔叶混交林、毛竹林及各种人工林等为主;矿区土壤都呈强酸性,各土地类型土壤理化性状普遍偏差,重金属含量普遍偏高;针对矿区的这些植被和土壤特性,分别对采矿区、废矿区和排土场等提出相应的环境整治和植被恢复措施及树种选择,并为保障矿区造林成功率提出相应的高强度营林措施。

By dint of survey of plant communities around Dabaoshan mining field in Shaoguan, Guangdong province, the study was conducted to investigate the predominant vegetation form and its spatial distribution pattern. Through the investigation and analysis, the article provided correlative measurements： 1 ） The dominating vegetation in the mine field was tussock and brushwood, while around the mine field there were distributing abundant natural secondary evergreen broad-leaved forest, evergreen and deciduous broad-leaved mixed forest, Phil- lostaehys heteroeycla forest and other plantation forests; 2 ） The soil of the mine district presented not only high- acid, but also poor physicoehemical property and high metal content ; 3） Because of the property of vegetation and soil state some environmental and vegetational restoration measures were put forward about the mining district, abandoned mine district and refuse-dump. At last, in order to enhance species survival ratio in mine, high density afforestation was necessary.