特高压工程塔基区次生植被物种多样性及生物量的研究——浙江省杭州市富阳区灵绍线特高压工程塔基区为例  

Research on the species diversity and biomass of secondary vegetation in tower area of the UHV Project

作　　者：刘建林 孙新珂 张琦 贾丽 Liu Jianlin;Sun Xinke;Zhang Qi;Jia Li(North China Power Engineering Co.,LTD of China Power Engineering Consulting Group,Beijing 100012,China)

机构地区：[1]中国电力工程顾问集团华北电力设计院有限公司,北京100120

出　　处：《环保科技》2023年第6期36-41,共6页Environmental Protection and Technology

摘　　要：为探究特高压输电工程塔基区次生植被特征、物种多样性和生物量分布,以塔基区及其附近未受干扰的对照区样地为研究对象,从物种重要值、物种多样性和生物量方面分析已正常运行6年的特高压输电工程塔基区次生植被的恢复程度。结果表明,(1)塔基区无乔木层植物生长而改变了原来的微环境,使得灌木层物种数减少而草本层增加,灌木层和草本层物种重要值分化而凸显优势种。(2)灌草层物种Margalef指数高于对照区但差异不显著(P>0.05),而Shannon-Wiener指数和Simpson指数低于对照区无显著性差异,Pielou指数低于对照区且呈现显著性差异(P<0.05)。(3)巡检维护行为显著地降低了灌木层生物量(P<0.05),而草本层生物量与对照区无显著性差异。塔基区乔木层消失和巡检维护行为共同影响着塔基区次生植被物种多样性和群落的演替发展。In order to find out the flora characteristics,species diversity and biomass in tower area of the UHV project,this paper studied effects of tower area gap on the secondary vegetation restoration.Based on the tower area and the nearby non-disturbed area,the species importance value,species diversity and biomass in tower area and non-disturbed area were compared.The results indicated:(1)There was no arbor layer in tower area and its micro-environment was improved,the number of shrub species increased and decreased for herb species,and the dominant species were emerged for both of shrub and herb according to the species importance value.(2)Margalef richness indices of shrub in tower area were larger than that in non-disturbed area without significant differences(P>0.05),and yet the Shannon-Wiener diversity indices and Simpson diversity indices were lower without significant differences(P>0.05),Pielou evenness indices were significantly higher than that in non-disturbed area(P<0.05).(3)The shrub biomass was significantly lower than that for the non-disturbed area(P<0.05)which was caused by the shrub harvesting,however there was no significant differences between the tower area and the non-disturbed area.Above all,both of shrub harvesting during the inspection and maintenance work and the improved micro-environment impacted the species diversity of secondary vegetation and the process of plant succession in tower area.

关 键 词：特高压工程 次生植被 物种多样性 生物量 

分 类 号：X826[环境科学与工程—环境工程]