烟草科技2016，Vol.49Issue(8)：21-27,7.DOI:10.16135/j.issn1002-0861.2015.0664
四川省烟田杂草种类及群落特征
Weed species and distributions in tobacco fields in Sichuan Province
摘要
Abstract
To study the species, distribution and damage of weed in tobacco fields in Sichuan Province, an inverted“W”9-point sampling method was used to investigate the weeds in 289 tobacco fields in Sichuan. The results showed that there were 201 weed species belonging to 135 genera of 41 families. Digitaria sanguinalis (L.) Scop., Polygonum nepalense Meisn., Alternanthera philoxeroides (Mart.) Griseb, Echinochloa colonum (L.) Link and Galinsoga parviflora Cav. were the dominant weeds. Commelina communis L., Chenopodium serotinum L., Paspalum distichum L., Polygonum lapathifolium L. var. salicifolium Sibth, Kalimeris indica (L.) Sch.-Bip. and Avena fatua L. were regional malignant weeds. Common weeds and general weeds included 24 and 166 species, respectively. The species diversity, Gleason index and Shannon-Wiener index of weeds were the highest in tobacco fields in Yibin and Dazhou, and the distribution of species was relatively even. Gleason index, Shannon-Wiener index and Pielou index of weeds were the lowest, while Simpson index was the highest in tobacco fields in Liangshan and Panzhihua, and dominant species were outstanding. The results of cluster analysis indicated that the weed communities could be grouped into 3 categories according to regions:Yibin-Luzhou-Guangyuan-Dazhou, Liangshan-Panzhihua and Deyang. The differences of geography, climate and weed control measures may be the main reasons causing the differences in weed community structure in tobacco fields.关键词
四川/烟田/杂草/群落/多样性/聚类分析Key words
Sichuan/Tobacco field/Weed/Community/Diversity/Cluster analysis分类
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赵浩宇,李斌,向金友,杨兴有,朱建义,刘胜男,周小刚..四川省烟田杂草种类及群落特征[J].烟草科技,2016,49(8):21-27,7.基金项目
四川省烟草专卖局科技项目“四川省烟田杂草的调查、演替规律及综合治理研究”［川烟科（2013）4号］。 （）
