城市草坪不同管理方式下土壤动物群落结构特征与差异

发布时间：2018-02-04 21:29

本文关键词： 城市草坪土壤动物群落结构类群指数　出处：《浙江农业学报》2017年11期 　论文类型：期刊论文

【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(P0.05),各管理方式间土壤动物群落多样性指数(H')差异不显著(P0.05),大型土壤动物类群数差异性显著(P0.05)。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。
[Abstract]:In July 2015, in order to understand the community structure of soil fauna under different management modes of urban lawn, macrofauna was collected by hand, and middle and small soil animals were separated by dry and wet funnel method. The community structure of turf soil fauna was investigated under artificial weeding and human trampling. A total of 1 009 soil animals belonging to 2 phyla, 11 classes and 20 families were captured in the experiment. The order of average density of soil animals in three turfgrass management methods was 3.84 脳 10 ~ (4) 路m ~ (-1) 路m ~ (2) ~ (2)) and 3. 63 脳 10 ~ (4) 路m ~ (2) 路m ~ (2) 路m ~ (2) of herbicide (3 脳 10 ~ (3) 脳 10 ~ (2)). 2.79 脳 10 ~ (4). The number of soil animal groups was no weeding (33) artificial weeding (27) and human trampling (20). There was significant difference in soil animal density-group index (DG) between unweeded and artificial herbicidal management (P < 0.05). P0.05). There was no significant difference in soil fauna community diversity index between different management styles (P0.05). The significant difference in the number of large soil fauna (P0.05) indicated that the richness, diversity and evenness of soil animals in urban lawn were negatively correlated with the intensity of anthropogenic disturbance.
【作者单位】：四川农业大学林学院;四川农业大学生态林业研究所;四川农业大学旅游学院;
【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)
【分类号】：S154.5;S688.4
【正文快照】： 都江堰611830)随着经济和城市人口的快速增长,人们对城市居住环境质量的要求越来越高。城市草坪为居民提供休闲娱乐场所的同时,也在调节城市小气候、提高城市生态承载力等方面起着重要的作用,是城市的绿色基础设施和城市重要的生命保障系统[1],对净化空气、吸收粉尘、保持水土

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