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辽河中上游流域种子植物区系分析
引用本文:马龙,刘廷玺,高润宏.辽河中上游流域种子植物区系分析[J].内蒙古农业大学学报(自然科学版),2003,24(3):30-35.
作者姓名:马龙  刘廷玺  高润宏
作者单位:1. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018
2. 内蒙古农业大学生态环境学院,呼和浩特,010019
基金项目:内蒙古自治区“十五”重点攻关计划项目(2001210)
摘    要:本文通过对辽河中上游流域植被调查和植物标本采集,结合室内标本查阅,分析了辽河中上游流域种子植物区系组成,其结果为:辽河中上游流域有种子植物103科、414属、共850种;其中裸子植物2科、2属;被子植物:101科、412属。主要科为禾本科。占总属数的12.32%,占总种数的10.59%;其次为菊科,占总属数的11.35%。占总种数的13.53%;第三位为豆科。占总属数的5.07%,占总种数的6%。多年生草本在所有生活型植物中占63.06%,水分生态型以中生植物为主。占53.15%,其次为中旱生植物,反映出该地区适合草本生长的草甸生境较多。地理区系组成以东亚成分为主。但因出现戈壁种。说明该地区环境的多样化。同时也反映出甸子地正不断沙化。

关 键 词:辽河中上游流域  种子植物  区系分析  植物标本采集  室内标本  裸子植物  被子植物  地区环境
文章编号:1009-3575(2003)03-0030-06
修稿时间:2003年8月30日

THE FLOVISTIC ANALYSIS OF SEED PLANT IN THE MIDDLE AND UPPER RANGE OF LIAO HE RIVER
MA Long,LIU Ting-xi,GAO Run-hong.THE FLOVISTIC ANALYSIS OF SEED PLANT IN THE MIDDLE AND UPPER RANGE OF LIAO HE RIVER[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2003,24(3):30-35.
Authors:MA Long  LIU Ting-xi  GAO Run-hong
Institution:MA Long~1,LIU Ting-xi~1,GAO Run-hong~2
Abstract:Through analysis of the flovistic composition of seed plant in the middle and upper range of Liao He river and the in vegetation in vestitation and specimen colleetion the results showed:There are about 850 species of the seed plant in the middle and upper range of Liao He river. There are 2 genus belonging to 2 families of Gymnosperm;and 412 genus belonging to 101 families of Angiosperm. The main family is Gramines which account respectively for 13.32% of all the genus and 10.59% of all the spelles. Followed by Compositae, accounting for 11.35% of all the genus and 13.53% of all the species. The third one is Leguminosae,acounting for 5.07% of all genus and 6% of all the species. Perennial herbaceous plants account for 63.06% in all life form plants,water ecotype which is mesophyte primarily account for 53.15%;the following is mesophyte-xero- phyte, which indicate that the meadow habitat fitting for herbaceous plants is much more. The geographic region is composed by Eesterrn- Asia ingredient mainly, but it came out harnada spiece, all reflect that the environment of region is varity,and the partum is sanding.
Keywords:the basic component of the plant region system  life form  ecotype  the component of geographic region system  
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