高校校园植被功能分区的多样性变化与均质化——以内江师范学院高桥校区为例  

Diversity Changes and Biotic Homogenization of Plant Functional Zoning in University Campuses——Taking the Gaoqiao Campus of Neijiang Normal University as an Example

作　　者：欧阳丽娜 常斐 杨寒迪 Ouyang Lina;Chang Fei;Yang Handi(School of Architecture and Engineering,Neijiang Normal University,Neijiang 641000,Sichuan,China;School of Geography and Resource Science,Neijiang Normal University,Neijiang 641000,Sichuan,China)

机构地区：[1]内江师范学院建筑工程学院,四川内江641000 [2]内江师范学院地理与资源科学学院,四川内江641000

出　　处：《绿色科技》2024年第1期37-45,共9页Journal of Green Science and Technology

基　　金：内江师范学院校级科研资助项目(编号:2023QN05)。

摘　　要：校园,特别是高校作为城市植被资源的重要组成部分,以西南地区高校为研究对象,分析了目标校园各功能分区植物群落的种类、结构特征、多样性变化规律以及均质化现象。结果显示:(1)校园中乔木和草本植物种类较为丰富,公共休闲区域和教学区在层次的植被种类均较高,运动区和入口区的物种数相对较少;(2)校园的样地植被面积与Menhinick、Pielou指数具有极显著与显著负相关性,除Margalef指数与Pielou指数之间无相关性,其他指数间均呈现显著或极显著相关性,在校园中,物种优势度对群落多样性指数贡献最大,其贡献度依次为优势度指数D>优势度指数D_(B-P)>丰富度指数D_(Margalef)>丰富度指数D_(mn)>均匀度指数E;(3)校园乔木层的生态稳定性高于灌木层和草本层,各区域间生态稳定性相似,休闲区、建筑区、教学区和宿舍区各层次植被相似较高。在各区域相同优势植被中,存在大量引种的观花木本和地被植物,导致了校园景观的雷同性和植被均质化现象。Campuses is an integral component of urban plant resources.This research focuses on universities in Southwest China to analyze the types,structural characteristics,variation patterns of diversity,and community similarity within each functional zone of the target campus.The findings indicate that:①There are more species of trees and herbs in the campus;the vegetation species in the public leisure area and the teaching area are higher at all levels,Conversely,sports areas and entrance zones exhibit relatively fewer species;②There exists a significant negative correlation between campus plot size and Menhinick/Pielou indices,with Menhinick index exhibiting a more pronounced decreasing trend compared to Pielou index as plot area increases.There was no correlation between Margalef index and Pielou index,but there was significant or extremely significant correlation between other indexes.All remaining indices exhibit either significant correlation or highly significant correlation.The dominance has the greatest impact on the α diversity index of campus,with the dominance index D being the highest,followed by dominance index D_(B-P),richness index D_(Margalef),richness index D_(mn),and evenness index E;③The ecological stability of the tree layer is higher than that of the shrub layer and the herbaceous layer,and the ecological stability is similar among different regions.Vegetation at different levels in public leisure area,public building area,teaching area and dormitory area is similar to each other,and the same dominant vegetation in each area contains a large number of introduced ornamental trees and ground covers,resulting in the similarity of campus landscape and the phenomenon of vegetation homogenization.

关 键 词：高校校园 植被物种多样性 Α多样性 均质化 群落相似性 

分 类 号：S948.15[农业科学—水产养殖]