青海玉树G214公路护坡植被恢复技术研究

发布时间：2018-03-17 14:22

本文选题：植物群落　切入点：植被恢复　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：现有国道G214线为二级公路，承担着西宁至结古段玉树灾后重建运输物资的主要任务，是物资运输的主要通道。沿线属于高寒地带，所处的地形地貌比较特殊，生态环境稳定性较差，线路工程的建设引发了周边生态环境的退化，如植被退化等生态问题。为实现经济与生态和谐发展的目标，本课题通过对G214国道沿线的气候环境，土壤特性，以及植被特点进行调查，，对国道沿线植被恢复及保护措施展开研究。该课题首先对G214国道进行分段调查，了解沿线每一段区域自然植物群落，分析得出该段优势种群，并结合现有的研究技术，总结了沿线植被的生态适应性，得出了植物种植最优配比。通过对该地区其他已建公路建设工程植被恢复调查，初步了解植被恢复的效果，并分析总结存在问题。研究过程中，筛选出公路沿线各区域段适宜的坡面植被恢复物种种类及配比。综合道路沿线的地理和自然植被群落特征，利用小范围的种植试验分析出合理的植物配比并提出边坡综合植被恢复的方法。
[Abstract]:The existing national highway G214 is a second-class highway, which is responsible for the main task of rebuilding and transporting materials after the disaster in Yushu from Xining to Jiegu, and is the main passage for material transportation. The stability of ecological environment is poor, and the construction of line project has caused the degradation of the surrounding ecological environment, such as vegetation degradation. In order to realize the goal of harmonious development of economy and ecology, this project is based on the climatic environment along the G214 national highway. Soil characteristics and vegetation characteristics were investigated and vegetation restoration and protection measures along the national highway were studied. This subject first carries on the subsection investigation to the G214 national highway, understands the natural plant community of each section along the route, analyzes and obtains the dominant population of this section, and combined with the existing research technology, summarizes the ecological adaptability of the vegetation along the line. Through the investigation of vegetation restoration in other highway construction projects in this area, the effect of vegetation restoration is preliminarily understood, and the existing problems are analyzed and summarized. In the course of the study, the suitable species types and ratios of slope vegetation restoration were selected for each region along the highway, and the geographical and natural vegetation community characteristics along the road were synthesised. The reasonable proportion of plants was analyzed by small scale planting experiment and the method of comprehensive vegetation restoration on slope was put forward.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U417.12;X171.4

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