商洛市丹江上游困难立地造林技术

Afforestation Technology on Difficult Sites in the Upper Reaches of Danjiang River of Shangluo

为给商洛市丹江上游困难立地造林设计提供依据和参考,在困难立地类型及其主要限制因子分析和实践总结基础上,提出了水土流失地、土层贫瘠山坡地、交通干线工程创面、采石采矿迹地等4个主要困难立地的环境特征,以及包括整地、客土回填、树种选择、苗木栽植、浇水保墒、防倒伏、抚育管护等环节在内的造林技术体系,该技术体系造林成活率、保存率都在90%以上,可在同类型地区推广应用。

Through the investigation and classification analysis of the difficult land in the upper reaches of the Danjiang River,the successful experience of the Shangluo area in recent years in the difficult land afforestation and the research on the afforestation technology model are summarized,and the vegetation restoration technology suitable for the difficult site is developed.The model and the new model were used for demonstration and promotion.The results showed that the use of this technical model for engineering afforestation can make the survival rate of afforestation on the exposed rocky slopes reach more than 90%.