[重庆南川玄参田杂草的种类、危害及群落结构]
[Species, Damage and Community Structure of Weeds in Scrophularia ningpoensis Fields in Nanchuan, Chongqing].
作者信息
Han Feng, Xiao Jie-yi, Cao Hou-qiang, Luo Chuan, Yang Tian-jian, Lin Mao-xiang
出版信息
Zhong Yao Cai. 2015 Oct;38(10):2042-7.
OBJECTIVE
To investigate the damage and community structure of weeds in Scrophularia ningpoensis fields in Nanchuan, Chongqing.
METHODS
From 2013 to 2014, an investigation was carried out by inverted W-9 point sampling method to study the weed species.
RESULTS
96 weed species belonged to 75 genera of 30 families were observed, including 18 species of Asteraceae weeds (accounted for 18.75%), 10 species of Poaceae weeds (accounted for 10.42%). Moreover, there were 57 species of annual weeds (accounted for 59.38%) and 39 species of perennial weeds (accounted for 40.63%). The overall abundance of Erigeron annuus, Digitaria adscendens, Torilis scabra, Polygonum nepalense, Ranunculus japonicas, Stellaria media and Commelina communis were relatively higher than that of the others.
CONCLUSION
The difference of weed species and community structure might result from the physical and chemical characteristics of soil, moisture content, cropping system, tillage type, environmental and climatic conditions, crop distribution and weed control.
目的
调查重庆南川玄参田杂草的危害及群落结构。
方法
2013年至2014年，采用倒置W-9点取样法进行调查，研究杂草种类。
结果
共观察到96种杂草，隶属于30科75属，其中菊科杂草18种（占18.75%），禾本科杂草10种（占10.42%）。此外，一年生杂草57种（占59.38%），多年生杂草39种（占40.63%）。一年蓬、升马唐、窃衣、尼泊尔蓼、毛茛、繁缕和鸭跖草的总体多度相对高于其他杂草。
结论
杂草种类和群落结构的差异可能是由土壤理化性质、含水量、种植制度、耕作方式、环境气候条件、作物分布和杂草防治等因素造成的。
Zotero 插件