期刊文献+

易贡藏布沿岸种子植物组成及其区系特征分析

Analysis on the Composition and Floristic Characteristics of Seed Plant Along the Bank of Yigong Zangbu
下载PDF
导出
摘要 通过野外植被实地调查和资料整理分析,以易贡藏布沿岸种子植物为研究对象,对区域内种子植物科、属组成特征及不同海拔种子植物物种丰富度进行分析。结果表明,该区域共记录到种子植物87科257属428种。其中,裸子植物3科7属13种,被子植物84科250属415种。科属的分布区类型中除世界广布外,热带科的比重略高于温带科,而温带属的比重占优势。SD值(植物区系种系分化度)和TSR(转换后的物种丰富度)与海拔变化不具明显相关性。与邻近区域的植物区系R/T值(热带成分/温带成分)比较,发现该研究区与色季拉山的植物区系最为接近。 Through field vegetational investigation and data analysis,the composition characteristics of seed plant families and genera along the bank of Yigong Zangbu,as well as the species richness of seed plant at different altitudes,were analyzed.The results showed that a total of 428 species of seed plant belonging to 87 families,257 genera,were recorded in this area.Among them,there are 13 species of gymnosperm belonging to 7 genera and 3 families,and 415 species of angiosperm belonging to 250 genera and 84 families.In the geographical distribution types of families and genera,except for the world-wide distribution type,the proportion of tropical family is slightly higher than that of temperate family,while the proportion of temperate genera is dominant in the study area.There is no significant correlation between TSR(transformed species richness) and SD(divergence of plant species) values with altitude.The comparison R/T(tropical element/temperate element) values in the study area of seed plant with that of neighboring area showed that it is the closest to that in the Sejila Mountain.
作者 王昌萍 陈新丰 尹正辉 梁泽鹏 拉多 WANG Changping;CHEN Xinfeng;YIN Zhenghui;LIANG Zepeng;Lhagdor(Medica Wetland Field Observation StationSchool of Ecology and Environment,Tibet University,Lhasa 850000,China;Center for Carbon Neutrality in the Third Pole of the Earth,Tibet University,Lhasa 850000,China)
出处 《高原科学研究》 CSCD 2023年第4期11-20,114,共11页 Plateau Science Research
基金 2022年中央财政支持地方高校改革发展专项资金项目(藏财预指[2022]1号) 国家自然基金委联合基金项目(U20A2005)。
关键词 植物区系 植物区系种系分化度值 热带成分 温带成分 易贡藏布 flora divergence of plant species tropical element temperate element Yigong Zangbu
  • 相关文献

参考文献19

二级参考文献340

共引文献1974

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部