城市草坪不同管理方式下土壤动物群落结构特征与差异  

Characteristics and differences of soil fauna community in different management modes of urban lawn

作　　者：罗熳丽 黄婷婷[3] 肖玖金 黄进平[3] 张健 彭彩云[1,2] 

机构地区：[1]四川农业大学林学院,四川温江611130 [2]四川农业大学生态林业研究所,四川温江611130 [3]四川农业大学旅游学院,四川都江堰611830

出　　处：《浙江农业学报》2017年第11期1835-1843,共9页Acta Agriculturae Zhejiangensis

基　　金：国家自然科学基金青年科学基金项目(31400457);四川省景观与游憩研究中心项目(JGYQ2015012)

摘　　要：为了解城市草坪不同管理方式下土壤动物的群落结构,于2015年7月,大型动物采用手捡法,中小型土壤动物采用干、湿漏斗法进行分离,对未除草、人工除草和人为践踏3种管理方式下草坪土壤动物的群落结构进行调查。试验共捕获土壤动物1 009只,隶属于2门11纲20科;3种草坪管理方式下土壤动物平均密度排序为未除草(3.84×10~4只·m^(-2))>人工除草(3.63×10~4只·m^(-2))>人为践踏(2.79×10~4只·m^(-2)),土壤动物类群数为未除草(33)>人工除草(27)>人为践踏(20)。未除草与人工除草管理方式的土壤动物密度-类群指数(DG)有显著性差异(P<0.05),各管理方式间土壤动物群落多样性指数(H')差异不显著(P>0.05),大型土壤动物类群数差异性显著(P<0.05)。表明城市草坪土壤动物的丰富度、多样性和均匀度与人为干扰强度呈紧密的负相关关系。bTo reveal the community structure of soil fauna in different managements in urban lawn,no weeding,weeding and trampled grassland were chosen as sample plots in July 2015. Soil macro-fauna were picked up by hands.nematodes and meso-fauna were separated and collected from the soil samples by Baermann and Tullgren methods,respectively. Results showed that soil fauna had 1 009 individuals,belonging to 2 phylums,11 classes,20 families.The order of the average density of soil fauna was no weeding（ 3. 84 × 10~4 ind.·m-2） weeding（ 3. 63 × 10~4 ind.·m-2） trampling（ 2. 79 × 10~4 ind.·m-2）. The order of species number was no weeding（ 33） weeding（ 27） trampling（ 20）. There were significant differences between no weeding and weeding on the density-group index（ DG）（ P〈0. 05）. The various diversity index（ H＇） among the lawn managements were not significantly different（ P〈0. 05）,while the specie numbers of soil macro-fauna were significantly different（ P〈0. 05）. Results indicatedthat the richness,diversity and homogeneity of soil fauna were closely negatively correlated with intensity of human interference.

关 键 词：城市草坪 土壤动物 群落结构 类群指数 

分 类 号：S154.5[农业科学—土壤学]