桂西南不同利用方式旱地杂草种类的研究——以龙州县为例  

Study on Dryland Weed Species under Different Land Use Patterns in Southwest of Guangxi Province—A Case Study of Longzhou County

作　　者：谭秋锦 覃振师 陈海生 徐冬英 赵大宣 何铣扬 

机构地区：[1]广西南亚热带农业科学研究所,广西龙州532415

出　　处：《安徽农业科学》2015年第11期95-96,98,共3页Journal of Anhui Agricultural Sciences

基　　金：广西公益基金项目(GXNYRKS201506)

摘　　要：以龙州县为例,对桂西南不同利用方式的玉米、甘蔗、菠萝、香蕉和杧果地的杂草种类、分布、优势种群及多样性指数等基本情况进行了调查。结果表明,桂西南龙州县样地中出现的杂草有27科54种,其中禾本科杂草11种,菊科杂草10种;玉米地杂草8科13种,甘蔗地杂草10科20种,菠萝地杂草12科18种,香蕉地杂草10科11种,杧果地杂草9科14种。桂西南旱地菊科的鬼针草、飞机草、一点红普遍发生,危害加重,禾本科的鹅观草、鹅肠草和臭根子草等大面积发生,旱地杂草主要形成菊科+禾本科+酢浆草科的杂草群落。研究区的5种利用方式Pielou均匀度较高,分别为0.967、0.964、0.947、0.969、0.962。With Longzhou County as example, the weed species, distribution, dominant population and diversity index in corn, sugarcane, pineapple, banana and mango fields under different land use patterns in southwest Guangxi were investigated. The results showed that there are 27 families, 54 species of weeds in sampling sites. Among them, 11 species are Gramineae, 10 species are Compositae, 8 families, 13 species are in corn lands, 10 families, 20 species in sugarcane lands. 12 families, 18 species in pineapple fields, 10 families, 11 species in banana fields and 9 families, 14 species in mango fields. The compositae of Bidens bipinnata, Eupatorium adenophorum Spreng and Emilia sonchifolia were generally occured and hazards aggravated which was southwest. The Gramineae of Roegneria kamoji Ohwi, Stellaria media and BothriochZoa intermedia were large occured. The weed community made up of Compositae ＋ Gramineae ＋ Oxalidaceae, that was mainly form dry weeds. In the study area five use patterns Pielou evenness is higher, just for 0. 967, 0. 964, 0. 947, 0. 969, 0. 962.

关 键 词：杂草 旱地 桂西南 利用方式 

分 类 号：S451[农业科学—植物保护]