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当前位置: 首页 > 文章 > 民勤沙区6种常绿树种冻害调查 甘肃林业科技 2009,34 (1) 45-47+81
Position: Home > Articles > Investigate of Injury Situation by Freeze of Six Evergreen Tree Species in Minqin Desert Area Journal of Gansu Forestry Science and Technology 2009,34 (1) 45-47+81

民勤沙区6种常绿树种冻害调查

作  者：
魏林源;严子柱;尉秋实
单  位：
甘肃省沙漠化防治重点实验室/甘肃省治沙研究所
关键词：
民勤沙区;常绿树种;冻害
摘  要：
对2008年1～2月民勤沙区几种常绿乔木冻害情况进行了调查,结果表明:这次冻害的主要原因是1～2月份低于-10℃的低温冻害天气持续达40 d之久;通过6种常绿树种冻害评价,各树种受冻害从重到轻依次是:祁连圆柏(83.3)、侧柏(74.2)、刺柏(63.3)、杜松(44.4)、云杉(38.3)和樟子松(26.7)。各树种冻害级别总体达中度偏重,受冻器官主要是叶、顶芽和枝条。
译  名：
Investigate of Injury Situation by Freeze of Six Evergreen Tree Species in Minqin Desert Area
作  者：
WEI Lin-yuan,YAN Zi-zhu,YU Qiu-shi(Gansu Key Laboratory of Desertification Combating & Gansu Desert Control Research Institute,Wuwei Gansu 733000,China)
关键词：
Minqin desert area;evergreen tree species;freeze injury.
摘  要：
This paper investigated and analyzed the injury situation by freeze of six evergreen tree species in Min-qin desert area during the period from January to February in 2008.The results showed that the microtherm weather which is lower than-10 ℃ was more than 40 days is the primary cause from January to February;Through evaluate the degree of injury of each tree species,the injury extent from severity to light is: Sabina przewalskii(83.3),Platycladus Orientalis(74.2),Juniperus formosana(63.3),Juniperus rigida(44.4),Picea crassifolia(38.3),Pinus sylvestris var.mon-golica(26.7).The rank of freezing injury of each tree species is exceed the moderate overall,the mainly frozen organ are the leaf,the terminal bud and the branch respectively.

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