南方大果紫檀等珍贵树种寒害调查  

A Survey of Freezing Harm of Precious Trees in South China

作　　者：杨曾奖[1] 徐大平[1] 曾杰[1] 郭俊誉 林清锦 姚庆端 

机构地区：[1]中国林业科学研究院热带林业研究所,广州510520 [2]热带林业研究试验站,乐东572542 [3]漳州市林业局,漳州363000

出　　处：《林业科学》2008年第11期123-127,共5页Scientia Silvae Sinicae

基　　金：国家林业局"948"项目"速生珍贵紫檀属树种及其组培快繁技术引进"(2003-4-11)

摘　　要：2008年持续大范围低温天气,对我国南方森林植物带来灾难性伤害,灾后不久,对大果紫檀等珍贵树种的抗寒性进行调查。结果表明:当年或2年生紫檀属幼林对比黄檀和檀香属幼林,抗寒性较差,2.5℃的低温已明显受害,这一温度是其受害的阀值,也是本地区引种的主要限制因子。而檀香受害温度的下限是-1℃,降香黄檀能耐短暂-3℃低温,白木香能耐短期霜冻。苗木品质和树龄一定程度上影响其抗寒性。A long lasting weather of massive ice storm at the beginning of 2008 caused a large scale disaster to plants of forests in south China.A survey was carried out to evaluate harm of precious trees including Pterocarpus macrocarpus storthy after the disaster.The results showed that seedlings of Pterocarpus macrocarpus at the age of 1 or 2 a were inferior to those of Dalbergia and Santalum in cold tolerance.Pterocarpus macrocarpus seedlings were apparently harmed at 2.5℃,which was a critical temperature for the survival of the species and also a limiting factor to introduce the species to this region.Santalum album could tolerate a temperature as low as-1℃.Dalbergia odorifera could survive at-3℃ and Aquilaria sinensis could survive frosts for a short time of frosting.In addition,the seedlings with high quality and older age showed higher cold tolerance.

关 键 词：大果紫檀 降香黄檀 檀香 白木香 珍贵树种 抗寒性 

分 类 号：S761[农业科学—森林保护学] S792.29[农业科学—林学]