城市嵌草式铺装植被和大型土壤动物群落组成特征——以新泰市为例

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 城市嵌草式铺装植被和大型土壤动物群落组成特征——以新泰市为例 DOI: 10.5846/stxb202109232671 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 福建省中青年教师教育科研项目(JAT210346);厦门理工学院科学技术研究项目(YKJ22009R) Community composition of vegetation and soil macrofauna in the urban grass planting pavement: A case study in Xintai City Author: Affiliation: Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:嵌草式铺装近年来广泛应用于城市停车场及道路,研究其群落组成特征对城市生态的综合治理具有重要意义。以新泰市为例,通过现场采样调研分析探讨了嵌草式铺装对植被和土壤动物群落组成和多样性的影响。结果显示,植被调查中共记录草本植物14科22属22种。牛筋草(Eleusine indica)为新泰市嵌草式铺装中植被的优势种。植被的平均密度和生物量分别为(21.87±2.15)株/m2和(4.15±0.45)g/m2。不同站点间植株密度和高度有显著空间差异(P<0.05),生物量和盖度差异不显著。不同站点的植被物种多样性特征也有所差异。大型土壤动物调查共记录7目8科10种,其中蚁科为优势类群。嵌草式铺装中土壤动物的丰度、生物量均显著高于不透水路面(P<0.05)。逐步回归分析表明,嵌草式铺装中植被和土壤动物的丰度和生物量与土壤的容积密度和含水率等理化性质显著相关(P<0.05)。土壤动物丰度与植被盖度、土壤动物生物量与植被生物量间也具有显著相关关系(P<0.05)。结果表明,嵌草式铺装能够有效提高城市生态系统中植被和土壤动物群落的丰度、生物量和多样性,这种影响是直接和间接多种方式的协同作用。未来应结合多种环境因子的监测,在不同时空尺度上系统探究嵌草式铺装带来的生态效应及其高效合理利用途径。 Abstract:Grass planting pavement has been widely used in urban roads, parks, and parking lots in recent years due to its composite structure of plant-soil-permeable filler. Many scholars have extensively studied its ecological and environmental functions in enhancing infiltration, reducing urban surface runoff, purifying water quality, and adjusting the microclimate of the local ecosystem. However, we had little knowledge about its effects on the organism communities and species diversity, even though it is of great significance to the comprehensive management and planning of the urban ecosystem. Therefore, based on field sampling and investigation, we carried out this study to quantitatively analyze the community composition and species diversity of the vegetation and soil macrofauna in the urban grass planting pavement in 9 sites of Xintai City, Shandong Province, and discuss the ecological effects of the grass planting pavement. A total of 22 species of herbaceous plants in 14 families, 22 genera were recorded in the study. With the highest relative abundance and biomass, Eleusine indica was the dominant species of vegetation in the grass planting pavement in Xintai City. The average abundance and biomass of the vegetation in the grass planting pavement was (21.87±2.15) shoots/m2 and (4.15±0.45) g/m2. There were significantly spatial differences in the shoot density (F=2.671, P<0.05) and stem height (F=2.748, P<0.05) among different sampling sites. Nevertheless, the differences in the vegetation biomass and coverage among different sites were not significant (P＞0.05), though significant differences existed in the pairwise comparison between sites by the Least Significant Difference (LSD) analysis. The species diversity of vegetation at different sites also varied significantly, the lowest value appeared in the grass planting pavement of the hospital parking lot. A total of 10 species in 7 orders, 8 families of the soil macrofauna were recorded in the survey. Formicidae was the dominant group of the soil macrofauna communities in the grass-planting pavement transects. Only two species of soil macrofauna were recorded in the porous pavement transect of all sites. The abundance and biomass of the soil macrofauna in grass planting pavement transect were significantly higher than that in porous pavement (P<0.05). The results of stepwise regression analysis showed that the community characteristics of vegetation and soil macrofauna significantly correlated to the soil physiochemical properties, such as bulk density and water content. The biomass (R2=0.810, P<0.05) and coverage (R2=0.819, P<0.001) of the vegetation in the grass planting pavement had the strongest correlations with the biomass and abundance of the soil macrofauna. The study showed that the grass planting pavement could effectively increase the abundance, biomass, and diversity of the vegetation and soil macrofauna communities in the urban ecosystem. This effect is a direct and indirect synergy of multiple factors, such as trampling frequency, soil texture, water content and some other biological factors. On the basis of long-term monitoring, systematic and comprehensive studies should be carried out in combination with environmental factors in the future to systematically explore the ecological effects of the grass planting pavement and provide a scientific basis for the further efficient and reasonable utilization of the grass planting pavement. 参考文献 相似文献 引证文献