title: [Animal community structure in greenhouse soils with different planting years in Shouguang City].
abstract: By the methods of hand-sorting, Tullgren's and Baermann's, the animal community structure in greenhouse soils with different planting years in Shouguang City of Shandong Province was investigated from March 2006 to April 2007. A total of 20966 soil animals belonging to 3 phylums and 12 classes were obtained. Collembola, Nematoda, Acariformes and Oribatida were the dominant groups, accounting for 82.3% of the total individuals. The soil animals had an obvious vertical distribution pattern, with most of them assembled in surface soil and occupying 75.4% and 14.6% of the total at the depths of 0-5 cm and 5-10 cm, respectively. The animals' amount in greenhouse soils was the highest from March to May and from October to December, and the lowest in August; while that in open field soils was the highest from July to September, and the lowest in January. The animal community in greenhouse soils in this region had a high diversity, but the density of dominant groups increased obviously with increasing planting years, resulting in a decrease of diversity index.
authors.affiliation: College of Resource & Environment, Gansu Agricultural University, Lanzhou 730070, China. dongbobby@163.com
authors.forename: Bo
authors.initials: B
authors.lastname: Dong
authors.forename: Ren-zhi
authors.initials: RZ
authors.lastname: Zhang
authors.forename: Shi-jie
authors.initials: SJ
authors.lastname: Jing
authors.forename: Yong
authors.initials: Y
authors.lastname: Xie
authors.forename: Hua
authors.initials: H
authors.lastname: Yao
mesh_terms: D040041:Acaridae / Q000254:growth & development; D000383:Agriculture / Q000379:methods*; D000818:Animals; D001181:Arthropods / Q000254:growth & development*; D002681:China; D009348:Nematoda / Q000254:growth & development*; D011157:Population Dynamics; D012987:Soil / Q000032:analysis*; D014675:Vegetables / Q000254:growth & development*
chemical_list: D012987:Soil