茶园套种圆叶决明对杂草物种多样性的影响  

Effects of Intercropping Chamaecrista rotundifolia in Tea Plantation on Weed Diversity

作　　者：罗旭辉[1] 刘明香[1,2] 罗石海 章华武 韩海东[1,2] 应朝阳[1] 

机构地区：[1]福建省农业科学院农业生态研究所福建省山地草业工程研究中心,福建福州350013 [2]福建省丘陵地区循环农业工程技术研究中心福建省红壤山地农业生态过程重点实验室农业部福州农业环境科学观测实验站,福建福州350013 [3]长江大学生命科学院,湖北荆州434023 [4]福建农林大学作物学院,福建福州350002

出　　处：《热带作物学报》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)

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.

关 键 词：圆叶决明 套种 茶园 杂草 多样性 

分 类 号：S542.9[农业科学—作物学]