| 片段化生境中木本植物种子大小对幼苗存活的影响 |
| |
| 引用本文： | 余梅生,钟雨辰,余世成,王志平,雷艳平,徐高福,于明坚. 片段化生境中木本植物种子大小对幼苗存活的影响[J]. 浙江林业科技, 2021, 0(2): 47-52 |
| |
| 作者姓名： | 余梅生 钟雨辰 余世成 王志平 雷艳平 徐高福 于明坚 |
| |
| 作者单位： | 淳安县新安江生态开发集团有限公司;浙江大学生命科学学院 |
| |
| 基金项目： | 国家自然科学基金项目(31870401、31930073);国家重点研发计划(2018YFE0112800)。 |
| |
| 摘 要： | 以千岛湖29个样岛木本植物的种子与幼苗为研究对象,分析了种子大小与种子数量的相关性,以及岛屿参数、地形因素和土壤养分含量如何影响种子大小并作用于幼苗早期存活.结果显示:(1)物种间种子大小与种子数量存在权衡关系;(2)种子大小对幼苗半年存活率无显著正效应,但坡向朝东、土壤碳含量低增加了种子大小对幼苗存活率的正效应,而夏...
|
| 关 键 词： | 种子大小 种子数量 幼苗存活 岛屿特征 生境因子 生境片段化 |
Effect of Seed Mass on Seedling Survival of Woody Plants at Fragmented Habitat in Thousand Island Lake |
| |
| YU Mei-Sheng,ZHONG Yu-Chen,YU Shi-Cheng,WANG Zhi-Ping,LEI Yan-Ping,XU Gao-Fu,YU Ming-Jian. Effect of Seed Mass on Seedling Survival of Woody Plants at Fragmented Habitat in Thousand Island Lake[J]. Journal of Zhejiang Forestry Science and Technology, 2021, 0(2): 47-52 |
| |
| Authors: | YU Mei-Sheng ZHONG Yu-Chen YU Shi-Cheng WANG Zhi-Ping LEI Yan-Ping XU Gao-Fu YU Ming-Jian |
| |
| Affiliation: | (Chun’an Xin’an jiang Ecological Development Group Co.,LTD of Zhejiang,Chun’an 311700,China;College of Life Sciences,Zhejiang University,Hangzhou 310058,China) |
| |
| Abstract: | During 2019-2020,29 islands dominated by Pinus massoniana with few human disturbance were selected in the Thousand Island Lake,Chun’an,Zhejiang province to establish forest dynamic plot.In spring of 2011,498 quadrats were built in the 29 islands for investigation of seedlings in spring and autumn from 2011 to 2015.Results showed that there was a trade-off between seed mass and seed number.Seed mass had no significant effect on seedling survival rate within half a year.The aspect and the lack of soil carbon content had positive effect of seed mass on seedling survival rate.Larger mass had greater negative effect than small mass on seedling survival rate in summer.Seedling initial height and soil phosphorus content showed positive effect on seedling survival rate,while distance to the nearest island had negative effect on seedling survival. |
| |
| Keywords: | seed mass seed number seedling survival islands characteristic habitat factor habitat fragmentation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
