岳西县来榜镇桑园土壤动物群落及其多样性研究

生物多样性保护是当今世界关注的热点 ,土壤是重要的地下生物宝库 ,土壤生物多样性的保护应予以足够重视。对土壤动物群落的研究 ,目前已有不少报道3 ] ,但对桑园土壤动物群落及其多样性研究仍属空白。本项工作是在 1999年 1～ 9月对皖西大别山腹地岳西县来榜镇桑园土壤动物调查的基础上 ,探讨桑园这种特殊农业生态类型土壤动物群落多样性特征 ,为进一步提高桑园生产力提供科学依据 ,也为土壤生物多样性保护提供基础资料。1　研究地与方法1 1　研究地自然概况岳西县深处皖西大别山腹地 ,Ｅ115°5 5′～ 116°33′ ,Ｎ31°11′～ 30°39′ ,…

A research of soil anmal community and its diversity in mulberry tree orchard in Laibang Town Yuexi County

To discuss the character of soil animal community and its diversity in mulberry tree orchard,from February to September,1999,we investigated the soil animal community and its environment in mulberry tree orchard in Laibang town,Yuexi county.Faunas collected were 3804 individuals which belong to 5 phyla,12 classes and 34 genera. Among them 4 genera were dominate and 7 genera were common.These constitute 94.45% of the total collected population. The result shows:the more species and individual numbers and the higher evenness,the higher the soil animal community diversity.Moreover,the longer the mulberry tree planted,the higher the index of H,E,N and DIC for soil animal community. In the sample with more destructive insects,S,E and H values for soil animal community are high. The genera and individual numbers of soil animals decrease with the increase of soil depth,but casually increase a little bit in some sample field. The individual numbers are the highest in spring,then in autumn,and then in summer,and the least in winter on the whole.Approximately,the diversity index of soil animal community in the mulberry tree orchard is higher than that in the tea garden.