广西植物2017，Vol.37Issue(4)：453-460,433,9.DOI:10.11931/guihaia.gxzw201608010
库车种子植物区系垂直分布格局分析
Analysis on vertical distribution pattern of flora of seed plants in Kuche
摘要
Abstract
Kuche is located in the middle of the Tianshan Mountains in Xinjiang,the northern margin of the Tarim Basin.In terms of geographical division, the vegetation in this region belongs to the warm temperate shrub and subshrub desert area of Xinjiang.Based on field studies and relevant literature, the vertical distribution characteristics of the flora in Kuche were systematically analyzed.The results showed that there were approximately 960 species of seed plants belonging to 78 families and 376 genera in Kuche.Among these, there were nine species of Gymnosperm belonging to three families and three genera.There were 951 species of Angiosperm belonging to 75 families and 373 genara.The total number of families indicated that the highest peak at the elevation with 1 600-1 800 m.The total number of genera indicated that the highest peak at the elevation with 1 800-1 900 m.The total number of species showed that the highest peak at the elevation with 1 900-2 000 m, there were 59 families, 230 genera, 478 species.From the altitude with 2 200-2 300 m, the number of seed plants family, genus, species showed a decreasing trend with increasing altitude, and the distribution curve showed an unimodal peak distribution structure.North temperate elements were dominant in family and genera floristic composition.In vertical gradients, a peak of temperate distribution type appeared in 1 800-1 900 m (including 20 families), from the altitude gradient with 2 800-2 900 m showed a decreasing trend, to 3 600-3 700 m was the lowest (including six families);The temperate distribution peak of the genus appeared in 1 900-2 000 m, and then decreased with the increase of altitude.This study is very important for the characteristics of the altitude gradients on the flora of seed plants of Kuche Mountain in the area of plant germplasm resources and ecosystem diversity, and plant resources of domestication, cultivation and utilization.关键词
植物区系/垂直分布格局/物种多样性/地理成分/库车Key words
flora/pattern of vertical distribution/species diversity/geographical elements/Kuche分类
农业科技引用本文复制引用
布买丽娅木·吐如汗,刘彬,艾克拜尔·依米提..库车种子植物区系垂直分布格局分析[J].广西植物,2017,37(4):453-460,433,9.基金项目
国家自然科学基金(31360039) （31360039）
新疆维吾尔自治区重点实验室开放课题基金(XJDX414-2015-05)[Supported by the National Natural Science Foundation of China(31360039) （XJDX414-2015-05）
Xinjiang Uygur Autonomous Region Key Laboratory Fund of Open Program(XJDX414-2015-05)]. （XJDX414-2015-05）
