河南省西峡老界岭自然保护区植物区系及珍稀植物资源研究

STUDY ON THE FLORA AND THE RARE PRECIOUS PLANTS IN THE NATURAL RESERVE OF LAOJIE RANCE OF XIXIA COUNTY IN HENAN

1、西峡老界岭自然保护区位于亚热带向暖温带的过渡地区、南北植物交汇、种类较丰富,计有种子植物131科,864属和1354种,种子植物以华北,华中区系成分为主,但也有不少的西南成分。构成该区植被的主要建群种及优势种科有四个:松科(Pinaceae),壳斗科(Pagaceae),桦木科(Betulaceae)和胡桃科(Juglandaceae),多数属,种为典型的温带成分和亚热带地区成分。2、初步统计,该区蕴藏有国家重点保护植物17种,省级27种和许多其它名贵药材,奇花异草,野生水果等资源。

1.The natural reserve of Laojie Rance of Xixia county is situated in the transitional region from the subtropical to the warm zone.The plants in southern and northern arcas are in-seted with and are very ich,Spermatophytes include about 131 families,864 genera,and 1354species.The floristic compositions are omplex,the flora is closely related to north china andcentral china,and there are also some endemic species of egion f southwest china.There are4 families that compose the main constructive and dominant species of the vegetation in hereserve,they are Pinaceae,Fagaceae,Betulaccae,and Juglandaceae,of which the mostgenera and species are ypical elements of the temperate and subtropical zone.2.According to our preliminary statistics,this reserve holds in tore 17 prorected plantsproclaimed by the State,and 27 by the Henan province,as well as many kinds of valublemedicinal herbs,decorative plants,wild fruit trees and so on.