银川市引种绿化树种冻害调查  

Investigation of Freezing Injury of Introducting Afforestation Tree Species in Yinchuan

作　　者：赖声渭[1] 申淑娟[1] 宋丽华[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《现代农业科技》2009年第20期206-210,212,共6页Modern Agricultural Science and Technology

摘　　要：选择银川市公共绿地、单位绿地、居住区绿地不同样地,对银川市21种引种绿化树种的冻害情况进行调查,结果表明:各树种冻害指数不同,耐寒力强弱不同,可将21种树种分为3类:耐寒力强、耐寒力较强和耐寒力差。耐寒力强的树种冻害指数在5.8%～15.0%之间,耐寒力较强的树种冻害指数在15.8%～28.3%之间,耐寒力差的树种冻害指数在35.0%～56.7%之间。In the paper,the freezing injury of 21 introducting afforestation tree species in Yinchaun sample plots was investigated.The spots were public green space,unit green space,street and squate green area.The result showed that all the species could be divided into three groups,which were high hardy group,hardy group and low hardy troup.The species hand cold tolerance variation because of the different freezing injury index.The freezing injury index of high hardy varieties was between 5.8% and 15.0%,while the hardy vrieties between 15.8% and 28.3%,the low hardy varieties between 35.0% and 56.7%.

关 键 词：引种树种 冻害 调查 宁夏银川 

分 类 号：S426[农业科学—植物保护]