秦岭植物区系的特有现象研究

Study on Endemic Phenomena of the Flora in Qinling Mountain Range

摘要: 秦岭有中国种子植物特有属４７属，含６１种。现代地理分布呈现出西南——华中——华东分布型最多，华中——华东分布型和西南——华北分布型次之，华北分布型和横断山——藏南分布型最少。分布于秦岭的中国特有属植物主要处于中海拨地带，且西段和南坡较东段和北坡多，显示出温带性质。“秦岭中心”的三江流域的上游是秦岭的中国特有属的天然避难所和向北迁移的主要路线之一。

Abstract: There are 47 chinese spermatophytic endemic genera, including 61 species,in the flora of Qinling mountain range.SW China-C China -E Cina is dominant; C China-E China and SW CHina-N China is secondary; N China and Hengduan Mts -S Xizang in modern geographical distribution patterns is rare. The chinese endemic genera distributing in Qinling mainly grow at middle elevation range, western region and south slop more than eastern region and north slop, giving the characteristic of temperate zone.Upper reaches of ...