云南省困难立地植被恢复技术

摘要

近些年造林绿化工程如火如荼进行,造林工作的重心已从宜林地和荒山造林转移到困难立地植被恢复上.困难立地由于干旱、土壤贫瘠等原因,造林成活率和保存率低,是生态恢复的关键区域.文章在界定困难立地类型及生态特征的基础上,对植被恢复应遵循植被演替理论和水分平衡理论的生态学理论进行探讨,进一步阐述困难立地植被恢复技术中的适合植物种类筛选、育苗技术、造林技术和抚育管理技术.并提出提高单价投资,重视后期管理,先进技术成果应用等建议.%In recent years,afforestation projects have been a hot topic,and the focus of afforestation has been shifted from planting in forestation-suitable lands and barren mountains to vegetation restoration in difficult sites.Due to drought,soil sterility etc,the survival rates and preserving rates of the planted vegetation were low in difficult sites,which became key areas for ecological restoration.This paper explored ecological theory and technology of vegetation recovery,it also presented post-management measures regarding vegetation restoration in difficult sites such as plant species selected,seedling cultivation technique,afforestation techniques and tending management.Furthermore,this paper put forward suggestions to improve investment of per unit,attach importance to late management,and to apply advanced technology.