摘要
作者在芜湖市郊七种主要土壤类型中进行了土壤动物调查,共获大、中小型土壤动物3604个,隶属于5门12纲26目32类。其中线虫类、螨类、弹尾类为优势类群;线蚓类、蚁类、蚯蚓类、鞘翅目幼虫为常见类群。结果表明:土壤动物的群落结构与土壤环境有密切关系;自然土壤中土壤动物的数量明显高于耕作土壤;土壤动物的丰富度与土壤有机质含量呈正相关:类群数与个体数随土壤深度的增加而递减。
From March to May 1993,We investigated soil types and soil animals in the suburb of Wuhu city.There are Red earth,Yellow-brown soil and Calcareous soil in the netural soil. There are paddy soil and chao soil in the cultivated soil.3734 individul faunas were collec- ted.They belong to 5 phyla,12 classes,26 orders and 32 genera among which the dominant genera are Nematoda,Acari and Collembola;the common genera are Enchytraeidae, Formicidae,Oligochaeta and Coleopiera.These two constitute 94.76% of the total collec- ted population.The analysis shows that the quantities of soil animals in the natural soil more than in the cultivated soil.There is close correlation between the rich degree of soil an- imals and organic matter total N,total P of soil.The individual number of soil animals de- crease with the deepening of soil.
出处
《云南地理环境研究》
1993年第2期71-77,共7页
Yunnan Geographic Environment Research
基金
国家自然科学基金(49171032)
