| 民勤沙区6种常绿树种冻害调查 |
| |
| 引用本文： | 魏林源,严子柱,尉秋实.民勤沙区6种常绿树种冻害调查[J].甘肃林业科技,2009,34(1):42-44. |
| |
| 作者姓名： | 魏林源 严子柱 尉秋实 |
| |
| 作者单位： | 甘肃省沙漠化防治重点实验室,甘肃省治沙研究所,甘肃,武威,733000 |
| |
| 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40d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。
|
| 关 键 词： | 民勤沙区 常绿树种 冻害 |
Investigate of Injury Situation by Freeze of Six Evergreen Tree Species in Minqin Desert Area |
| |
| WEI Lin-yuan,YAN Zi-zhu,YU Qiu-shi.Investigate of Injury Situation by Freeze of Six Evergreen Tree Species in Minqin Desert Area[J].Journal of Gansu Forestry Science and Technology,2009,34(1):42-44. |
| |
| Authors: | WEI Lin-yuan YAN Zi-zhu YU Qiu-shi |
| |
| Institution: | (Gansu Key Laboratory of Desertification Combating ＆ Gansu Desert Control Research Institute, Wuwei Gansu 733000, China) |
| |
| Abstract: | This paper investigated and analyzed the injury situation by freeze of six evergreen tree species in Minqin 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. mongolica （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. |
| |
| Keywords: | Minqin desert area evergreen tree species freeze injury |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
