摘要
采用手捡法对玉米田秸秆回填及施肥处理条件下大型土壤动物群落组成及多样性进行研究。结果表明,玉米田内土壤动物数量与施肥情况有关。不同施肥处理玉米田内土壤动物个体总数从多到少依次为:NPK正常施肥秸杆不回田处理>不施肥处理;全部秸杆回田处理>CK对照处理(秸杆不回田、不施肥)。土壤动物类群数依次为:NPK正常施肥秸杆不回田处理=不施肥处理(全部秸杆回田)>CK对照处理(秸杆不回田,不施肥)。生物多样性指数分析表明,不同处理之间生物多样性无明显差异,但在玉米生长不同时期内,生物多样性有明显差异。
Large soil animal communities and their diversity were investigated by hand picking method in the corn straw returned field and fertilizers applied field. The results show that the animal individual numbers were influenced by the applied fertilizers. Soil animal numbers in the no straw returned field treated with normal NPK fertilizers were higher than those without any treatment of fertilizers, and in the straw returned field they were higher than those in the straw no returned the field without any fertilizers. The species of soil animals in the straw no returned field treated with normal NPK fertilizers were equal to those in straw returned field without any fertilizers. The biodiversity index in the different fields was significantly different, but obviously different with the corn growing stages.
出处
《环境昆虫学报》
CSCD
2008年第2期108-114,共7页
Journal of Environmental Entomology
基金
国家自然科学基金(40271069
40471076)
吉林省科技重点项目(20050206-2)
高校博士点基金(20040193002)
关键词
玉米田
施肥
土壤动物
群落
生物多样性
Corn field
applied fertilizer
soil animal
community
biodiversity
