CAJ | 학술논문

为明确江苏金坛地区小麦田杂草优势种及其种间生态关系，于2014年5月对该地区小麦田杂草种类、数量、高度等进行调查，将其转换成相对多度和重要值数据，并在此基础上计测了杂草的生态位宽度和生态位重叠值，用DCA 排序法作出反映杂草生态学相似程度的DCA排序图。结果表明：江苏金坛地区小麦田杂草有28种，分属16科25属。28种杂草中，菵草、日本看麦娘、猪殃殃和大巢菜等4种杂草实际生态位较宽，为江苏金坛地区小麦田优势杂草；雪见草、毛茛、母草、星宿菜之间的生态位重叠值和附地菜、通泉草、波斯婆婆纳之间的生态位重叠值较大，菵草、日本看麦娘、看麦娘、猪殃殃等杂草生态位重叠值也较大，说明它们对资源的竞争较为激烈。
위명학강소금단지구소맥전잡초우세충급기충간생태관계，우2014년5월대해지구소맥전잡초충류、수량、고도등진행조사，장기전환성상대다도화중요치수거，병재차기출상계측료잡초적생태위관도화생태위중첩치，용DCA 배서법작출반영잡초생태학상사정도적DCA배서도。결과표명：강소금단지구소맥전잡초유28충，분속16과25속。28충잡초중，망초、일본간맥낭、저앙앙화대소채등4충잡초실제생태위교관，위강소금단지구소맥전우세잡초；설견초、모간、모초、성숙채지간적생태위중첩치화부지채、통천초、파사파파납지간적생태위중첩치교대，망초、일본간맥낭、간맥낭、저앙앙등잡초생태위중첩치야교대，설명타문대자원적경쟁교위격렬。
So as to clarify the dominant weed species and interspecific ecological relationships in wheat fields in Jintan area, Jiangsu province, the author conducted a survey of weed species, density and height of wheat fields in this area in May, 2014, and transformed the data into weed relative abundance and important value.Based on the above, we calculated the niche breadth and niche overlap values of these weeds,and drew DCA sorting diagram reflecting the ecological similarity degrees among weed species by using DCA sorting method.The results showed that there were 28 weed species in wheat fields of Jintan area, which belonged to 25 genera, 16 families.Among these 28 weed species, Bekc man ia szy igachne, Alopecurus japonicus, Galium aparine var.teneur m and Vicia sativa had a bigger niche breadth, and they were the dominant weeds in the wheat fields in Jintan.There were larger niche overlap values among Saluia plebeia, Ranunculus jaop nicus, Lindernia crustacea and Lysimachia fortunei,among Trigonotis peduncu-laris, Mazus japonicus and Veronica japonicus, and among Beckmannia syzigachne, Alopecurus japonicus, Alopecurus aequalis and Galium aparine var.tenerum , which indicated they competed for resources intensely.