重庆市石灰岩矿边坡植物配置研究--以重庆市石柱县石灰岩矿为例

Study on Plant Configuration of Limestone Mine Slope in Chongqing City--Take the Limestone Mine in Shizhu County,Chongqing City as an Example

本文选取重庆市石柱土家族自治县(简称石柱县)大歇镇龙王村水泥用石灰岩矿的三个典型高陡边坡作为研究对象,对不同边坡配置不同比例、不同种类的乡土植物,运用实验室和实地两种萌发试验,采用喷播的方式对矿山边坡植被恢复进行试验。结果表明,先锋物种∶后期物种为2∶1的配置模式有较高的多样性和稳定性,可推广应用于类似工程中;白车轴草和一年生黑麦草具有强大的竞争力,可对其他植物产生抑制作用,应在理论播种量的基础上适当减少用量。

In this paper,three typical high-steep slopes of the cement limestone mine in Longwang Village,Daxie Town,Township,Shizhu Tujia Autonomous County (Shizhu County for short),Chongqing City,are selected as the research objects,and different proportions and different types of native plants are configured for different slopes,and two kinds of germination tests in the laboratory and in the field are used,and the method of spraying is used to test the vegetation restoration on the slope of the mine.The results show that the 2∶1 configuration model of pioneer species∶late species has high diversity and stability,and can be extended to similar projects;white clover and annual ryegrass have strong competitiveness and can inhibit other plants,so the dosage should be appropriately reduced based on the theoretical sowing amount.