松果采摘对小兴安岭主要林型红松土壤种子库和幼苗库的影响

doi:10.11849/zrzyxb.2010.11.004

自然资源学报 ›› 2010, Vol. 25 ›› Issue (11): 1845-1854.doi: 10.11849/zrzyxb.2010.11.004

松果采摘对小兴安岭主要林型红松土壤种子库和幼苗库的影响

金光泽^a, 杨桂燕^a, 马建章^b, 李兰军^a, 徐正刚^a, 赵雪^a, 洪美静^a

东北林业大学 a.林学院,b.野生动物资源学院, 哈尔滨 150040

收稿日期:2010-03-22 修回日期:2010-06-06 出版日期:2010-11-20 发布日期:2010-11-20
作者简介:金光泽(1971- ),男(朝鲜族),黑龙江齐齐哈尔人,博士,教授,主要研究方向为森林生态学。E-mail:taxus@126.com
基金资助:
国家自然科学基金资助项目(30770350);林业公益性行业科研专项经费项目(200904012);高等教育科学研究"十一五"规划课题(115C-782);东北林业大学本科生创新性实验项目(2007042)。

Effect of Anthropogenic Cone-picking on Seed Bank and Seedling Bank of Korean Pine in the Major Forest Types in Lesser Hing’an Mountains

JIN Guang-ze^a, YANG Gui-yan^a, MA Jian-zhang^b, LI Lan-jun^a, XU Zheng-gang^a, ZHAO Xue^a, HONG Mei-jing^a

a.School of Forestry, Northeast Forestry University, b.School of Wildlife Resources, Northeast Forestry University, Harbin 150040, China

Received:2010-03-22 Revised:2010-06-06 Online:2010-11-20 Published:2010-11-20

摘要/Abstract

摘要： 为了探讨人为采摘松果对小兴安岭主要林型红松(Pinus koraiensis)土壤种子库和幼苗库的影响,选择阔叶红松林以及与阔叶红松林相邻的红松人工林、落叶松(Larix gmelini)人工林、白桦(Betula platyphylla)林和云冷杉林,各设置10 m×240 m的样带,调查了红松土壤种子库和幼苗库。主要结果如下:①主要林型间红松土壤种子库数量具有明显的差异,阔叶红松林最多,落叶松人工林次之,白桦林最少;②鼠类取食过或被破坏等动物侵害的种子占81.9%~90.4%,完好种子只有在阔叶红松林和落叶松人工林中发现,分别为4.3%和4.9%;③红松种子主要分布在0~10 cm层中(71.4%~91.3%);④红松幼苗库的密度云冷杉林最高(1 613株·hm^-2),红松人工林最低(167株·hm^-2),其中阔叶红松林(296株·hm^-2)和白桦林(854株·hm^-2)的幼苗密度分别为采摘前的1/68~1/9和1/9~1/4.5;⑤从龄级分布上看,松果采摘前阔叶红松林低龄级幼苗的数量较多,随着龄级的增大明显减少,呈倒J型分布;白桦林各龄级幼苗密度相差不大。人为采摘松果后,阔叶红松林各龄级间密度相差不大;白桦林呈倒J型分布。

关键词: 阔叶红松林, 土壤种子库, 幼苗库, 小兴安岭, 红松

Abstract: To study the effect of anthropogenic cone picking on the seed bank and seedling bank of Korean pine (Pinus koraiensis) in the major forest types in Lesser Hing’an Mountains, mixed broad-leaved Korean pine forest, Korean pine plantation near the mixed broad-leaved Korean pine forest, Dahurian larch (Larix gmelini) plantation, white birch (Betula platyphylla) forest and spruce-fir forest were selected. In each of these forest types, sample belts with the size of 10 m×240 m were made to study the seed bank and seedling bank of Korean pine. The results showed: 1) The amount of Korean pine seed bank differed greatly with forest types. The largest amount of seed bank was shown in the mixed broad-leaved Korean pine forest, followed by the Dahurian larch plantation, spruce-fir forest, Korean pine plantation and white birch forest. 2) Seeds that were cracked or destroyed by rodents and other animals accounted for 81.9%-90.4% of the seed bank of those major forest types; intact seeds were only found in the mixed broad-leaved Korean pine forest and Dahurian larch plantation, with 4.3% and 4.9%, respectively. 3) Korean pine seeds were mostly distributed in the 0-10 cm soil layer (71.4%-91.3% of the seed bank of those major forest types). 4) The density of Korean pine seedling bank was the highest in Dahurian larch forest (1613 seedlings·hm^-2), lowest in Korean pine plantation (167 seedlings·hm^-2), Korean pine seedling density in the mixed broad-leaved Korean pine forest (293 seedlings·hm^-2) and white birch forest (854 seedlings·hm^-2) were 1/68-1/9 and 1/9-1/4.5 of the seedling bank before cone picking, respectively. 5) For the age class distribution, before cone picking, in the mixed broad-leaved Korean pine forest, the amount of Korean pine seedlings decreased as the age class increased, the age class distribution showed a reverse J-shaped distribution; in the white birch forest, density of the Korean pine seedlings was relatively the same in each of the age class. After cone picking, in the mixed broad-leaved Korean pine forest, density of the Korean pine seedlings was relatively the same in each of the age class; in the white birch forest, the age class distribution of Korean pine seedlings showed a reverse J-shaped distribution.

Key words: mixed broad-leaved Korean pine forest, seed bank, seedling bank, Lesser Hing’an Mountains, Korean pine

中图分类号:

Q148

金光泽, 杨桂燕, 马建章, 李兰军, 徐正刚, 赵雪, 洪美静. 松果采摘对小兴安岭主要林型红松土壤种子库和幼苗库的影响[J]. 自然资源学报, 2010, 25(11): 1845-1854.

JIN Guang-ze, YANG Gui-yan, MA Jian-zhang, LI Lan-jun, XU Zheng-gang, ZHAO Xue, HONG Mei-jing. Effect of Anthropogenic Cone-picking on Seed Bank and Seedling Bank of Korean Pine in the Major Forest Types in Lesser Hing’an Mountains[J]. JOURNAL OF NATURAL RESOURCES, 2010, 25(11): 1845-1854.

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松果采摘对小兴安岭主要林型红松土壤种子库和幼苗库的影响

Effect of Anthropogenic Cone-picking on Seed Bank and Seedling Bank of Korean Pine in the Major Forest Types in Lesser Hing’an Mountains

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