成立闰,肖菲菲,刘雨诗,周宇爝,黄玉梅
CHENG Lirun,XIAO Feifei,LIU Yushi,ZHOU Yujue,HUANG Yumei

• 1:射洪市广兴镇农业综合服务中心
• 2:四川农业大学风景园林学院

摘要(Abstract)：

为进一步说明化感作用影响机制，为未来城市绿地的植物配置和养护管理提供一定理论参考。制备出麦冬梯度浓度水浸提液对土壤样品进行处理，并对梯度浓度水浸提液处理下的中小型土壤动物群落结构特征进行数据分析。（1）麦冬水浸提液试验共捕获中小型土壤动物3 148只，隶属于14目39科。（2）水浸提液不同浓度处理下中小型土壤动物个体数存在显著差异（P<0.05），通常随浓度增大而减少。（3）不同浓度麦冬水浸提液处理下中小型湿生土壤动物群落结构特征存在显著差异（P<0.05）。（4）不同处理时长间，中小型土壤动物群落多样性随时长增加而降低。（5）中小型湿生土壤动物较之干生土壤动物对化感物质水浸提液响应更灵敏。麦冬化感作用会影响中小型土壤动物群落多样性特征，在实际应用中应综合考虑植物搭配与对土壤动物的长远影响，注意栽植密度，建设可持续的园林景观。
In order to further explain the mechanism of allelopathy and provide some theoretical reference for plant configuration and maintenance management of urban green space in the future. Soil samples were treated with gradient concentration of water extracts from Ophiopogon japonicus, and the community structure characteristics of small and medium-size soil fauna were analyzed. The results showed that:(1) A total of 3 148 small and medium-size soil fauna were captured, belonging to 14 orders and 39 families.(2) There were significant differences in the number of individuals of small and medium-size soil fauna under different concentrations of water extracts(P<0.05), which usually decreased with the increase of concentration of water extracts.(3) There were significant differences in the community structure of small and medium-size soil fauna under different concentrations of water extracts(P<0.05).(4) The community diversity of small and medium-size soil fauna decreased with the increase of treatment time.(5) The small and medium-size wet soil fauna were more sensitive to the water extracts of allelochemicals than dry soil fauna.Our study indicated that the allelopathy of O. japonicus can affect the diversity characteristics of small and medium-size soil fauna communities. The long-term effects of plant configuration and soil fauna should be considered comprehensively in practical application, and the planting density should be paid attention to build a sustainable green landscape.

关键词(KeyWords)： 麦冬;城市绿地;土壤动物;化感作用;多样性指数
Ophiopogon japonicus;urban green space;soil fauna;allelopathy;diversity index

Abstract:

Keywords:

基金项目(Foundation): 四川省教育厅重点项目（16ZA0031）

作者(Author): 成立闰,肖菲菲,刘雨诗,周宇爝,黄玉梅
CHENG Lirun,XIAO Feifei,LIU Yushi,ZHOU Yujue,HUANG Yumei

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