摘要
首次报道了云南怒江干热河谷区旱地农田杂草分属34科共138种,和4个主要的群落组成:以热带果园、咖啡园为代表的,以竹节菜+三叶鬼针草+赛葵为主的群落;以果园成园前期、甘蔗田、台湾青枣截干后农田为代表的,以三叶鬼针草+皱果苋+马唐为主的群落;以冬蔬菜、香料烟等短期作物为代表的,以香附子+辣子草+蘩缕为主的群落;以闲置农田为代表的,以无芒稗+酢浆草+狗芽根+纱草+千金子+小飞蓬为主的群落。其中香附子、辣子草、竹节菜、狗牙根、三叶鬼针草为优势种。
It is first reported that the four communities of the weed were made of 138 species of weed in 34 family in dry hot river valley area ofNujiang, Yunnan. These communities make of Commelina nudiflora＋ Bidens pilosa＋ Malvastrum coromandelianum, for example in the tropical fruit orchard and coffee garden; Bidens pilos＋ Amaranthus viridis ＋ Digitaria sanguinalis for example in the sugarcane garden ; Cyperus rotundus ＋ Galinsoga parviflora＋ Stellaria media for example in the vegetable and the spice tobacco garden; Echinochloa crusgalli vat. mitis ＋ Oxalis corniculata ＋ Cynodon dactylon ＋ Cyperus glomeratus ＋ Leptochloa chinensis ＋ Comnyza canadensis for example in the unused farmland. Cyperus rotundus, Galinsogaparviflor, Commelina nudiflor, Cynodon dactylon and Bidens pilos are dominant species.
出处
《热带农业科技》
2005年第4期1-4,40,共5页
Tropical Agricultural Science & Technology
关键词
农田杂草
种类
群落
怒江干热河谷
weed
kinds
community
dry hot river valley
Nujiang
