| 2006—2017年长白山阔叶红松林木本植物种子雨的时空动态 |
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| 引用本文： | 钱多多,匡旭,王绪高,蔺菲,原作强,叶吉,郝占庆. 2006—2017年长白山阔叶红松林木本植物种子雨的时空动态[J]. 应用生态学报, 2019, 30(5): 1487-1493. DOI: 10.13287/j.1001-9332.201905.012 |
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| 作者姓名： | 钱多多 匡旭 王绪高 蔺菲 原作强 叶吉 郝占庆 |
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| 作者单位： | 1.中国科学院沈阳应用生态研究所森林生态与管理重点实验室, 沈阳 110016;2.中国科学院大学, 北京 100049;3.河南城建学院, 河南平顶山 467036 |
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| 基金项目： | 国家自然科学基金项目(31570432,41671050,31670632) |
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| 摘 要： | 种子是森林更新的基础.为研究长白山阔叶红松林种子雨组成及时空变化,在长白山阔叶红松林25 hm2样地内设置150个面积为0.5 m2的收集器.自2006年5月至2017年12月收集252次,共收集到成熟、未成熟种子764299粒,隶属12科17属27种,其中,主林层树种13种704231粒,占总数的90%以上.种子最多的4个树种依次为紫椴、水曲柳、色木槭、假色槭,每年各个收集器都收集到这4个树种的种子;种子雨大爆发现象在各林层树种均存在,次林层和林下层较主林层树种滞后1~2年;各林层树种集中在秋季产生种子,各树种的种子雨都存在较大的时空变异性,相对而言,多数树种的空间变异性大于时间变异性;与科罗拉多岛(BCI)热带森林样地和浙江古田山亚热带常绿林样地种子产量的年际变异系数相比,长白山阔叶红松林种子产量年际变异系数较大,支持高纬度地区种子产量变异性高于低纬度地区的假说.
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| 关 键 词： | 种子雨 长白山 针阔混交林 年际变异 空间变异 |
| 收稿时间： | 2018-10-22 |
Spatio-temporal dynamics of woody plants seed rains in broad-leaved Korean pine mixed forest in Changbai Mountains form 2006 to 2017, China. |
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| QIAN Duo-duo,KUANG Xu,WANG Xu-gao,LIN Fei,YUAN Zuo-qiang,YE Ji,HAO Zhan-qing. Spatio-temporal dynamics of woody plants seed rains in broad-leaved Korean pine mixed forest in Changbai Mountains form 2006 to 2017, China.[J]. The journal of applied ecology, 2019, 30(5): 1487-1493. DOI: 10.13287/j.1001-9332.201905.012 |
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| Authors: | QIAN Duo-duo KUANG Xu WANG Xu-gao LIN Fei YUAN Zuo-qiang YE Ji HAO Zhan-qing |
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| Affiliation: | ;1.Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shen-yang 110016, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.Henan University of Urban Construction, Pingdingshan 467036, Henan, China |
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| Abstract: | Seeds are the basis for forest regeneration. To examine the composition and spatio-temporal dynamics of seed rains, a total of 150 seed traps of 0.5 m2 were installed in a 25 hm2 broad-leaved Korean pine (Pinus koraiensis) mixed forest plot in Changbai Mountains. With a total of 252 collections from May 2006 to September 2017, we collected 764299 mature and immature seeds which were belonged to 27 species, 17 genera, and 12 families. More than 90% of all collected seeds (704231 seeds) were from 13 canopy species. Seeds of four tree species, including Tilia amurensis, Fraxinus mandschurica, Acer mono, and Acer pseudo-sieboldianum could be collected every year from each trap. Mast-seeding was found in every canopy layer, but it happened one to two years earlier in the overstorey layer than midstorey and understorey layer. Almost all species produced seeds in autumn, with considerable spatiotemporal variation. Generally, the spatial variation of seeds was larger than temporal variation. Compared with annual variation coefficient of seeds in tropical forest of the Barro Colorado Island (BCI) and subtropical evergreen forest in the Gutianshan, annual variation coefficient of seeds in Changbai Mountains was higher, which supported the hypothesis that annual variation in seed rains would be lower in the tropics than that in higher latitudes. |
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| Keywords: | seed rain Changbai Mountains mixed broadleaf-conifer forest interannual variation spatial variation. |
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