高速公路隔断对农田大型土壤动物多样性的影响——以京哈高速公路德惠路段为例

发布时间：2018-04-10 19:57

本文选题：高速公路 + 隔断　；参考：《南京农业大学学报》2016年03期

【摘要】：[目的]为明确高速公路旁农田大型土壤动物群落组成和多样性,2013年5、8和10月对京哈高速公路德惠段路域南侧和北侧农田大型土壤动物群落组成、多样性和与环境因子的关系进行研究。[方法]对距离高速公路两侧不同样点5、20、100、200、400、800和1 600 m的大型土壤动物进行手拣法采集和实体显微镜鉴定,采用多样性和相似性指数以及典范对应分析(canonical correspondence analysis,CCA)排序对数据进行统计分析。[结果]本研究共捕获大型土壤动物3 091只,隶属6纲9目13科。链胃科、正蚓科、线蚓科和东京弓背蚁是高速公路两侧的共有优势类群。高速公路两侧土壤动物多样性在样点和季节间存在显著差异。高速公路两侧800和1 600 m样点大型土壤动物群落相似性最高。典范对应分析研究表明,降水量、土壤含水量和土壤有机质含量是影响高速公路两侧大型土壤动物群落的主要环境因子。[结论]高速公路两侧农田大型土壤动物的多样性并不完全是随着距高速公路距离的增加而呈现增大的趋势。高速公路两侧农田大型土壤动物多样性存在季节性差异,主要原因与人为干扰、环境污染和气候因素有关。
[Abstract]:[objective] in order to determine the composition and diversity of macrofauna community in farmland beside expressway, the composition of macrofauna community in farmland on the south and north side of Dehui section of Beijing-Harbin Expressway was studied in May and October of 2013.The relationship between diversity and environmental factors was studied.[methods] Large-scale soil fauna (52000200400800 and 1600m) with different points on both sides of expressway were collected by hand-picking method and identified by solid microscope.Diversity and similarity index and canonical correspondence analysis are used to analyze the data.[results] A total of 3 091 macrofauna were captured in this study, belonging to 6 classes, 9 orders and 13 families.Chaingidae, Vermiidae, Vermiidae and Toxotobacter are the common dominant groups on both sides of the freeway.The diversity of soil fauna on both sides of the highway was significantly different between the sampling points and seasons.The similarity of soil macrofauna community was the highest in 800 and 1 600 m sampling points on both sides of expressway.The results of canonical correspondence analysis showed that precipitation, soil water content and soil organic matter content were the main environmental factors affecting macrofauna communities on both sides of highway.[conclusion] the diversity of soil macrofauna on both sides of highway is not completely increasing with the increase of distance from expressway.The diversity of macrofauna on both sides of the highway is seasonal, which is mainly caused by human disturbance, environmental pollution and climatic factors.
【作者单位】：长春师范大学城市与环境科学学院;
【基金】：国家自然科学基金项目(31200407;41201248;41161040) 吉林省科技厅自然科学基金项目(20130101109JC) 吉林省教育厅“十二五”科学技术研究项目(吉教科合字[2015]第357号) 长春师范大学科研创新团队项目(T2013-3)
【分类号】：S154.5

【相似文献】