宝鸡市城镇(郊)陡坡及人工立面护坡植物及其多样性研究  

Investigation and Analysis of Plant Diversity on Slope Protection in Suburban Area of Baoji

作　　者：魏冬 杨阳[1] 郑玉莹[1] 王得祥[1] 王睿 师文俊 WEI Dong, YANG Yang, ZHENG Yu-ying, WANG De-xiang , WANG Rui, SHI Wen-jun(College of Forestry, Northwest A＆F University, Yangling , Shaanaxi 71210)

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100

出　　处：《陕西林业科技》2018年第1期14-18,共5页Shaanxi Forest Science and Technology

基　　金：国家科技支撑计划项目"环境友好型城镇景观林构建技术研究与示范"(2015BAD07B06)

摘　　要：以宝鸡市周边城镇(郊)陡坡及人工立面绿化植物群落为对象,采用样地、样方调查方法研究了不同坡度护坡植物群落的植物种类组成和多样性。结果为,研究区共有32种主要护坡植物,隶属于21科30属,其中乔木7科8属8种,占总数的25%;灌木5科5属5种,占总种数的15.7%;草本9科7属19种,占总种数的59.3%。乔木层中构树的重要值较大,灌木层中酸枣的重要值较大,草本层中地肤和酢酱草重要值较大。Simpson(J)指数、Shannon(H)指数、均匀度指数、Brillouin指数、Mclntosh(Dmc)指数在坡度20°~50°区间内呈上升趋势,50°以上又下降。本研究结果为黄土区陡坡及人工立面护坡植物选择提供依据,为城镇(郊)边坡绿化提供参考。Plant community of slope protection in suburban area of Baoji city was investigated using sample plot and Quadrate method to find out the composition and diversity of plants.Results showed that among the thirty-two species from 30 genera and 21 families,there are eight kinds of arbor species in 8 genera and 7 families（25% of the total）,five kinds of shrub species belonging to 5 genera from 5 families（15.7%）and 19 kinds of herbage species representing 7 genera from 9 families（59.3%）.In the arbor layer,cultivated Broussonetia papyriferaaccounts for a large portion,while in the shrub and herbage layer,Zizyphus jujube,Kochiascoparia and Oxalis corniculata have higher importance value.When the gradient of slope is between twenty and fifty degree,Simpson（J）index,Shannon（H）index,evenness index,Brllouin index and Mclntosh（Dmc）index remain an upward trend,whereas when gradient above fifty,all the indices show an downward trend.

关 键 词：宝鸡市城镇(郊) 护坡植物 种类 重要值 物种多样性 

分 类 号：Q748.15[生物学—分子生物学]