摘要
为明确圆叶决明对茶园杂草生长的影响,观测闽北茶园套种圆叶决明1～2 a春、夏、秋季杂草群落的多度、多样性指数、均匀度和生物量变化.结果表明：套种圆叶决明1～2 a,茶园秋季杂草群落Simpson多样性指数和Shannon-Weiner多样性指数分别提高了0.187～0.431和0.567～2.312,均匀度指数提高了0.187～1.004.套种处理茶园全年杂草干重较常规栽培（人工除草）分别下降55.8％～61.6％.说明套种圆叶决明可以应用于马唐占优势的茶园,用于控制杂草生物量.
Chamaecrista rotundifolia is a legume beneficial for water and soil conservation of tea plantation.It plays an important role in the control of weed growth.In order to know the effects of C.rotundifolia on weed growth,community abundance,species diversity,evenness and biomass of weeds were investigated in tea garden of northern Fujian intercropping Chamaecrista rotundifolia for one or two years in spring,summer and autumn.The results showed that after one or two-year interplant,weed Simpson and Shannon-Weiner indices in autumn increased by 0.187～0.431 and 0.567～2.312,respectively; evenness of weed evaluated by 0.187～1.004; and annual weed biomass decreased by 55.8％～61.6％.Interplanting C.rotundifolia acted more effectively on the control of weed biomass in tea plantation with crabgrass as dominant species.
出处
《热带作物学报》
CSCD
北大核心
2013年第12期2503-2507,共5页
Chinese Journal of Tropical Crops
基金
农业部公益性行业科研专项(No.201103005-01-09)
福建省科技重大专项(No.2012NZ0002)
国家科技支撑计划(No.2013BAC08B03-05)
福建省公益类科研院所基本科研专项(No.2011R1019-2)
福州市科技计划项目(No.2011-G-98、No.2012-G-114)
福建省农业科学院科技创新团队建设项目(No.CXTD-1-05)
导师制基金项目(No.2013DQB-16)
关键词
圆叶决明
套种
茶园
杂草
多样性
Chamaecrista rotundifolia
Intercropping
Tea plantation
Weed
Diversity
作者简介
罗旭辉（1979年-），男，副研究员；研究方向：豆科牧草、绿肥资源与水土保持应用。
通讯作者：韩海东，E-rural：hansonhan007@sina．com。
