科尔沁草地植被特征  

The Vegetational Characters of Kerqin Grassland

作　　者：魏丽男 候兆伦 刘显芝 

机构地区：[1]山东省菏泽市环保局,山东省菏泽市畜牧渔业局,内蒙古哲里木畜牧学院

出　　处：《草业学报》1995年第4期71-77,共7页Acta Prataculturae Sinica

摘　　要：科尔沁草地有维管束植物１６４２种，隶属１２４科、５４属，其中菊科、禾本科、豆科、蔷薇科合计１５６属、５９１种，分别占全地区总属数、总种数的２８．８４％和３５．９９％。全部植物属于１５个区系成分，以达乌尔一蒙古成分起主导作用。多年生草本植物（１００９种）是构成科尔沁草地植被的主体，中生植物（１１４１种）居优势地位，沙生植物和盐生植物的广泛分布也是本地区植被的重要特征。草原植被水平分布规律基本上呈西北－东南向变化，有发育良好的沙地植被和低湿地植被，由于山体属中低山，植被垂向地带性分布仅有３～４个带的分异。There were 1642 species of vascular plants in Kerqin Grassland.These species belong to 124 fainilies,541 genera. Among them ,compositae,Gramineae,Leguminosae,Leguminosae,Rosaceae amount to 156 genera,591 speciesof total genera and species.The whole plants belong to 15 floras,but Dauer -mongolia composition isdominant function. Perenuial herb(1009 species)is main body of Kerqin vegetation. Mesic plants(1141species)occupy clominant status,the psammophytes and halophytes of widespread distribution areimportant characters of Kerqin vegetation. The law of vegetation horizontal distribution is basically changeof north west-south east.The steppe vegetation is main part,and sand vegetation and low wet landvegetation have developed well.Because of middle and low mountains,vegetation vertical zone distributiononly have 3-4 zones.

关 键 词：科尔沁草地 植被特征 植物区系 生态类型 

分 类 号：S812.3[农业科学—草业科学]