沈阳农业大学桑蚕教学实习基地杂草种子库储量研究  

Seed Bank of Weed in Mulberry Field in the Teaching Practice Base for Silkworms of Shengyang Agriculture University

作　　者：冯梅[1] 林英[1] 苗青[1] 孙权[1] 赵琳琳[1] 曲波[1] 

机构地区：[1]沈阳农业大学生物科学技术学院,辽宁沈阳110161

出　　处：《安徽农业科学》2007年第24期7574-7575,共2页Journal of Anhui Agricultural Sciences

摘　　要：通过目前最常用的杂草种子库研究方法——诱萌法、淘洗法,运用生物多样性Simpson指数和Shannon-wiener指数对沈阳农业大学桑蚕教学实习基地土壤种子库的储量和多样性格局进行研究。结果表明,一年生草本植物在种类和数量上均是土壤杂草种子库的主体,在杂草群落中属于优势种。桑蚕基地共有23种杂草分别隶属于13科23属,以大麻科草和马齿苋科马齿苋所占比例较高,分别占总数的18.7%和12.1%。The research on the reservation of the seed bank in soil and the biological .diversity of weeds in teaching practice base for silkworms of Shengyang Agriculture University was done in their germination and elutriation,with Simpon index and Shannon-winner. The result showed annual plants was the dominant species among the weed group, types and quantity of which were the major part in weed bank in soil. There were 23 species of weeds, belonging to 13 families, of which, Humulus [ Humudas scandens （Laur.）Marr. ] and Purslane（ Portulaca oberacea L. ）accounted for the largest population of seed bank, 18.7% and 12.1% respectively of the total.

关 键 词：杂草种子库 生物多样性 桑蚕基地 

分 类 号：Q948.12[生物学—植物学]