罗平城市绿地树种多样性与生态系统多功能性的关系  

Relationship Between Tree Species Diversity and Multi-functionality of Ecosystem in Urban Green Space of Luoping

作　　者：李晓红 彭建松[2] 李帅锋[3] Li Xiaohong;Peng Jiansong;Li Shuaifeng(College of Landscape Architecture and Horticulture,Southwest Forestry University,Kunming Yunnan 650233,China;Research Institute of Forest City,Southwest Forestry University,Kunming Yunnan 650233,China;Research Institute of Resource Insects,Chinese Academy of Forestry,Kunming Yunnan 650233,China)

机构地区：[1]西南林业大学园林园艺学院,云南昆明650233 [2]西南林业大学森林城市研究院,云南昆明650233 [3]中国林业科学研究院资源昆虫研究所,云南昆明650233

出　　处：《西南林业大学学报（自然科学）》2023年第1期186-193,共8页Journal of Southwest Forestry University：Natural Sciences

基　　金：云南省高校质量工程项目(515006056)资助;曲靖市国家森林城市创建(SWFU-269-2019-078)资助。

摘　　要：基于云南罗平县45个样地的调查数据,选取绿量、降温、增湿、降噪4个生态系统功能变量,采用平均值法分析城市绿地树种多样性和生态系统多功能性的关系。结果表明:罗平县城市不同绿地中树种多样性综合指数(K)从高到低排序为公园绿地(1.76)>街旁绿地(1.68)>居住区绿地(1.64)>单位绿地(1.59)>校园绿地(1.33)。树种丰富度指数(G)与绿量、增湿、降温显著正相关,对降噪影响不显著;Simpson指数(D)和Shannon-Wiener指数(H)对绿量、降温、增湿和降噪存在显著的正相关关系;均匀度指数(J)与绿量、降噪和增湿显著正相关,与降温无显著相关关系。城市绿地树种多样性与生态系统多功能性间呈极显著的正相关关系,且Shannon-Wiener指数对多功能性的影响最大(R^(2)=0.694,P<0.01),说明同时维持多种生态功能需要更丰富的植株总量和物种数量来支撑。城市绿地树种多样性对生态系统功能具有重要意义,与单一功能相比,对多功能性的影响力更大。Based on the survey data of 45 sample plots in Luoping County,Yunnan Province,the relationship between tree species diversity and ecosystem multi-functionality in urban green space was investigated by using the mean method.Four ecosystem function variables were selected,including green quantity,cooling,humidfication and noise reduction.The results show that the comprehensive index K of tree species diversity in different green spaces in Luoping County is ranked from high to low as park green space(1.76)>street green space(1.68)>residential area green space(1.64)>enterprise green space(1.59)>campus green space(1.33).The tree species richness index(G)is significantly positively correlated with green quantity,humidification,and cooling,and has no significant impact on noise reduction;Simpson index(D)and Shannon-Wiener index(H)has a significant positive correlation with green quantity,cooling,humidification and noise reduction;uniformity index(J)has a significant positive correlation with green quantity,noise reduction and humidification,but no significant correlation with cooling.There is a very significant positive correlation between the diversity of urban green space tree species and ecosystem multi-functionality,and the Shannon-Wiener index has the greatest impact on multi-functionality(R^(2)=0.694,P<0.01),indicated that maintaining multiple ecological functions at the same time required more abundant plant and species.The diversity of urban green space tree species is of great significance to the function of ecosystem.Compared with a single function,it has a greater influence on multi-functionality.

关 键 词：树种多样性 生态系统 多功能性 城市绿地 罗平 

分 类 号：Q145[生物学—生态学] S731.2[生物学—普通生物学]