摘要
调查了多年生黑麦草与白三叶混播人工草地在退化演替过程中的杂草种类及侵入量。结果表明 ,入侵杂草的地上生物量、密度和盖度随人工草地退化程度的加重呈明显上升趋势。草地质量显著下降。华蒲公英等 15种为入侵人工草地的主要杂草种类。
The weed species and their invasion in the mixed grassland of Lolium perenne/Trifolium repens during the degradation succession process were investigated. Results show that aboveground biomass, density and coverage of invasive weeds increased with the proceeding of degradation succession proceeds, but grassland quality decreased. Principal invaded weed species were 15 species Taraxacum sinicum .
出处
《草原与草坪》
CAS
2001年第2期33-37,共5页
Grassland and Turf
基金
"九五"农业部畜牧业重点科研计划专题研究项目 (专题编号 :95牧 -0 2 -0 7-0 6)
关键词
人工草地
杂草入侵
草地质量
退化演替
dramalically artifical grassland
weed invasion
grassland quality
