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| 西南桦花序生长和开花物候特征 | |
| 引用本文： | 赵志刚,程伟,郭俊杰,曾杰,赖家业.西南桦花序生长和开花物候特征[J].林业科学研究,2011,24(3):385-389. |
| 作者姓名： | 赵志刚 程伟 郭俊杰 曾杰 赖家业 |
| 作者单位： | 1. 中国林业科学研究院热带林业研究所,广东广州,510520 2. 山东省淄博市淄川区林业局,山东淄博,255100 3. 广西大学林学院,广西南宁,530001 |
| 基金项目： | 国家"十一五"科技支撑专题"优质珍贵用材树种桦木、水曲柳新品种选育"(2006BAD01A1605)中西南桦研究的部分内容 |
| 摘 要： | 从花序、单株、林分水平上对广西靖西县的一个土石山生态交错区内不同立地条件下西南桦的开花物候进行了观察和比较。结果表明:西南桦雌、雄花序开花持续时间为2 3 d,同一植株相同部位的雌花序较雄花序晚开花约14 d;其单株开花持续时间为4 28 d,开花同步性指数为0.160 0.259,绝大多数植株的冠层开花顺序依次为下层、中层和上层,土山和石山立地间单株开花持续时间和开花同步性均差异不显著 (P＞0.05);在林分水平上,西南桦开花持续时间为40 58 d,两种立地间差异不显著。 |
| 关 键 词： | 西南桦 开花物候 开花同步性 立地 |
| 收稿时间： | 2010/10/8 0:00:00 |
Inflorescence Growth and Flowering Phenology of Betula alnoides |
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| ZHAO Zhi-gang,CHENG Wei,GUO Jun-jie,ZENG Jie and LAI Jia-ye.Inflorescence Growth and Flowering Phenology of Betula alnoides[J].Forest Research,2011,24(3):385-389. | |
| Authors: | ZHAO Zhi-gang CHENG Wei GUO Jun-jie ZENG Jie and LAI Jia-ye |
| Institution: | Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520,Guangdong,China;Forest Bureau of Zichuan District, Zibo 255100, Shandong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520,Guangdong,China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520,Guangdong,China;Forestry School, Guangxi University, Nanning 530001, Guangxi,China |
| Abstract: | Flowering phenology of Betula alnoides under different site conditions was observed and compared at inflorescence,individual and stand levels in an ecotone of two types of soils originated from limestone(site L) and granite(site G),respectively,at Jingxi County,Guangxi.The flowering of both male and female inflorescences lasted two to three days,and male inflorescences normally bloomed approximately fourteen days earlier than female ones at the same positions on a tree.At individual level,flowering lasted f... |
| Keywords: | Betula alnoides flowering phenology flowering synchrony site condition |
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