高寒高海拔工程扰动区人工植被恢复群落特征研究  

Characteristics of Plant Communities for Artificial Vegetation Restoration in Project-disturbed Areas of Alpine Areas

作　　者：丁宝锋 李廷山 DING Baofeng;LI Tingshan(Gannan Ecological and Environmental Engineering Assessment Centre,Gannan Gansu 747000,China;China Railway Research Institute Co.,Ltd.,Chengdu Sichuan 610032,China)

机构地区：[1]甘南州生态环境工程评估中心,甘肃甘南747000 [2]中铁科学研究院有限公司,四川成都610032

出　　处：《交通节能与环保》2024年第3期119-122,共4页Transport Energy Conservation & Environmental Protection

基　　金：2023年甘南州自筹经费科技项目(2023JY1SZ003)。

摘　　要：本文以青藏高原工程扰动区采用不同技术恢复的人工植被为研究对象,采用样方法对植被进行调查,计算物种重要值和多样性指数,分析不同技术恢复条件下人工植被物种组成和多样性特征。结果表明:(1)在生态修复区共出现了16科36属45种植物,其中菊科11属11种,禾本科8属9种,豆科4属5种和蓼科2属2种,其他植物为单属单种;(2)群落中垂穗披碱草、狗牙根的重要值表现最高;(3)三种生态修复技术中,采用客土喷播技术的植被多样性指数最高,且植被的平均株高、总密度和总盖度显著高于采用其他两种生态修复技术的植被。Taking the artificially restored vegetation in the project-disturbed area of the Tibetan Plateau as the research object,the plants were investigated using sample methods,and the species importance values and diversity indices were calculated to analyse the composition and species diversity of artificially restored plants with different ecological restoration techniques.The results showed that:(1)there were 45 species of herbaceous plants belonging to 36 genera and 16 families in quarry mine wasteland,among them,11 species belonging to 11 genera of Compositae,9 species belonging to 8 genera of Poaceae,5 species belonging to 4 genera of Leguminosae,and 2 species belonging to 2 genera of Polygonaceae.The adaptability of these 4 families was strong,and there were more single genus and single species.(2)The important values of Elymus nutans Griseb and Cynodon dactylon(L.)Persoon were the highest in the community.(3)The vegetation diversity index of the vegetation spraying technique was the highest among the three ecological restoration techniques,and the plant growth was the most luxuriant.

关 键 词：高寒地区 工程扰动区 人工恢复植被 植物群落结构 物种多样性 

分 类 号：U418.9[交通运输工程—道路与铁道工程]