摘要
以采集的植物标本和野外调查数据为基础,参考相关文献,分析研究了乌兰布和沙漠植物群落草本植物物种种类组成及物种的多样性。结果表明:(1)乌兰布和沙漠中共有草本植物232种,隶属于41科120属。菊科、禾本科和藜科是优势科;(2)草本植物的生活型可分为一年生、二年生、多年生和草质藤本4个类型,乌兰布和沙漠中多年生草本植物分布种类最多,有149种,草质藤本植物分布最少,仅有5种;(3)沙米群丛、沙竹+沙米群丛、沙生冰草+芦苇群丛、沙葱群丛、芨芨草群丛、马蔺群丛、芦苇群丛、苦豆子群丛、香蒲群丛等是乌兰布和沙漠中主要的草本植物群丛类型;(4)生长在乌兰布和沙漠内的草本植物总体上生长良好,但在不同生境下,草本植物的分布种类和数量差异大,形成了沙漠内部丰富的植被景观。
Herbaceous plant composition and diversity in Ulanbuh Desert were analyzed based on plant specimen,field investigation and reference search.The results showed that there were 232 herbaceous species in Ulanbuh desert,which belonged to 120 generas and 41 families.Among these families,Compositae,Gramineae and Chenopodiaceae were dominant.Herbaceous plant life form could be divided into therophyte,biennial,perennial and herbaceous vines types.Perennial hereage had a wide distribution.Among total 149 perennial species,there were only 5 species herbaceous vine.The main types of herbaceous plant associations were Agriophyllum squarrosum,Psammochloa villosa＋Agriophyllum squarrosum,Agropyron desertorum＋Phragmites australis,Allium mongolicum and Achnatherum splendens,Iris lactea var.chinensis,Phragmites australis,Sophora alopecuroides and Typha minima in Ulanbuh Desert.Herbaceous plant grown well in Ulanbuh desert.And distribution of herbaceous species and quantity varied with different habitats.
出处
《草原与草坪》
CAS
2011年第5期7-11,共5页
Grassland and Turf
基金
阿拉善SEE协会基金项目(SEEA0907VWL002)和(SEEA1099VWL02)资助
作者简介
张德魁（1970-），男，甘肃武威人，硕士，高级工程士，主要从事荒漠化防治、绿洲农业可持续发展方面的研究工作。E-mail：zhangdk2005@yahoo．com．cn
