摘要
2009年秋季对太原市不同类型的草坪植物进行物种调查和数量分类排序研究。结果表明,太原市草坪秋季入侵杂草种类达29科59属70种,其中菊科和禾本科的杂草最多;TWINSPAN分类将所调查的72个样方划分为14个群丛,各群丛的草坪草或主要的杂草有所不同;样方和优势种的DCA排序图第1轴反映了草坪土壤的湿度,沿着湿度梯度,草坪杂草由耐旱植物过渡为中生植物,第2轴反映了草坪除杂修剪程度的变化,除杂修剪程度不同,杂草的侵入种数和数量也不相同,人工管理养护水平是影响草坪杂草入侵的主导因子。
Based on the field investigation,TWINSPAN and DCA were applied to the analysis of the lawn plant communities in the fall of 2009 in Taiyuan city.The result indicated that：（i） there were 70 invasive weed species that belongs to 29 families,59 genera in the lawn of Taiyuan.Those species are mostly consisted of Composite and Grass Family.（ii） TWINSPAN classified the 72 quadrats into 14 associations,and the species composition and quantity of weeds were affected by species characteristics of lawn;（iii） the result of DCA ordination indicated that the management levels of lawn were the dominant factors responsible for the weed distribution in lawn.The first axis of DCA indicated the soil moisture gradient among the communities,while the second axis expressed the level of weeding and mowing.
出处
《西北农业学报》
CAS
CSCD
北大核心
2011年第3期102-108,共7页
Acta Agriculturae Boreali-occidentalis Sinica
基金
山西省自然科学基金项目(2007011079)
作者简介
第一作者：刘艳，女，硕士研究生，从事恢复生态学研究。E—mail：liuyan20091005@126．com
通讯作者：李素清，博士，副教授，从事恢复生态学研究。E-mail：lisuqing@sxu．edu．cn
