退化喀斯特生态恢复过程对土壤微节肢动物群落多样性的影响  

Effects of the process of restoring degraded Karst on soil micro-arthropod community diversity

作　　者：李宜蓉 龙健[1] 李娟[2] 刘灵飞[1] 廖洪凯[1] 王显 杨睿 LI Yi-rong;LONG Jian;LI Juan;LIU Ling-fei;LIAO Hong-kai;WANG Xian;YANG Rui(Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment,Guizhou Normal University,Guiyang 550001,China;Department of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001,China)

机构地区：[1]贵州师范大学贵州省山地环境信息系统与生态环境保护重点实验室,贵阳550001 [2]贵州师范大学地理与环境科学学院,贵阳550001

出　　处：《农业环境科学学报》2021年第2期310-318,共9页Journal of Agro-Environment Science

基　　金：国家自然科学基金项目(41661045);贵州省科技厅科技平台及人才团队计划项目(黔科合平台人才[2018]5609);贵州省百层次创新人才项目(黔科合平台人才[2020]6010);贵州省科技厅科学技术基金项目(黔科合基础[2020]1Z036);贵州师范大学2017年度学术新苗培养及创新探索项目(黔科合平台人才[2017]5726-55);贵州省喀斯特生态环境保护与治理人才基地项目。

摘　　要：为研究退化喀斯特生态恢复演替过程中土壤微节肢动物的变化特征,采用空间代替时间的方法,选取茂兰自然保护区内的草地、灌木丛、灌木林和原森林4种不同演替过程的典型样地,采集土壤样品并分离鉴定土壤动物,分析退化喀斯特生态环境的恢复过程中土壤微节肢动物群落特征及其与土壤性状的关系。结果表明:共获得土壤微节肢动物121只,隶属2纲3目9科,土壤微节肢动物群落丰富,其中隐气门亚目螨、捕食性螨在不同的恢复阶段处于优势群落的地位。Pearson相关性分析表明,铵态氮、易氧化碳对土壤微节肢动物营养功能群落结构和多样性(除均匀度指数)的影响较为显著。研究表明,退化喀斯特生态环境恢复过程对土壤微节肢动物的多样性、丰富度和均匀性均产生了极显著影响(P≤0.01),对于土壤微节肢动物微食物网的形成起到积极的作用。Four plots of representing succession in grassland,bush,shrubbery and original forest in Maolan Nature Reserve were selected,via the space-time replacement method,to study the impact on soil micro-arthropods of the restoration of a degraded Karst ecosystem.The characteristics of soil micro-arthropod communities and their relationship with the physicochemical factor of soil were analyzed during the process.The results recognized the presence of total of 121 soil micro-arthropods,belonging to two classes,three orders,and nine families,and that the community of soil micro-arthropods was rich,among which cryplosligmatic and predatory mites were the dominant community at different stages.Pearson analysis showed that ammonium nitrogen and easily oxidizable carbon had significant effects on the structure and diversity of soils micro-arthropod communities in terms of their nutrient function(except for the Pielou index).The restoration of degraded Karst ecosystem has a very significant impact on the diversity,richness and uniformity of soil micro-arthropods,and plays a positive role in forming soil micro-arthropod communities.

关 键 词：喀斯特地区 土壤微节肢动物 土壤养分 多样性 生态恢复 

分 类 号：S154[农业科学—土壤学]