| 兴安落叶松种子园花期防冻措施的研究 |
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| 引用本文： | 张静,薛振兴.兴安落叶松种子园花期防冻措施的研究[J].林业科技,1992,17(2):1-4. |
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| 作者姓名： | 张静 薛振兴 |
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| 作者单位： | 大兴安岭林科所
(张静，张宏俊，刘光，孟长柱)，大兴安岭林科所实验基地
(薛振平，徐永波，王洪彬)，大兴安岭林科所实验基地(武国忠) |
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| 摘 要： | 对兴安落叶松种子园进行调查表明,1989年雌花冻害为46.7%,1990年雌雄花冻害平均为94.2%,说明花期冻害严重地影响种子的产量和质量。经研究证明,通过培雪,推迟母树的物候期,解决了母树花期冻害问题,试验发明,75cm培雪覆草降低冻害率92.4%,效益显著。
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| 关 键 词： | 兴安落叶松 种子园 花期 防冻 |
THE STUDY OF DAHURIAN LARCH SEED ORCHARD ON ITS FLOWERING SEASON FREEZING DAMAGE AND ITS PROTECTION |
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| Zhang Jing Zhang HongJun Liu Guang Meng Changzhu.THE STUDY OF DAHURIAN LARCH SEED ORCHARD ON ITS FLOWERING SEASON FREEZING DAMAGE AND ITS PROTECTION[J].Forestry Science & Technology,1992,17(2):1-4. |
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| Authors: | Zhang Jing Zhang HongJun Liu Guang Meng Changzhu |
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| Institution: | Zhang Jing Zhang HongJun Liu Guang Meng Changzhu (Daxinganling Research Institute of Forestry) Xue Zhenping Xu Yongbo Wang Hongbin Wu Guozhong (Daxinganling Research Experiment Base of Forestry) |
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| Abstract: | The study of Larix gmilinii seed orchard shows, the freezing damage rate to female flowers accounts for 46.7% and 92.4%, in 1989 and 1990 respectively. This result means a great reduction in the seed produotion and quality. The study and experient have proved that by covering the seed tree with snow and we can successfully reduce the freezing damage to the tree flowers, The best treatment is to cover the trees by 75cm thinckness Snow and it reducesthe damage by 92.4%. This developed techniques produce much econom icbenefit and is worth being extention. |
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| Keywords: | Larix gmilinii Seed orchard Flowering season freezing damage Snow coverage |
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