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。
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.
[1] Roe A L, Alexander R R, Andrews M D. Engelmann spruce regeneration practices in the Rocky Mountains . USDA Forest Service, Products Research Report, 1970: 115.
[2] Bakker J P, Poschlod P, Strykstra R J, et al. Seed bank and seed dispersal: Important topic in test restoration ecology[J]. Acta Botanica Neerlandica, 1996, 45(4): 461-490.
[3] Nathan R, Muller-Landau H C. Spatial patterns of seed dispersal, their determinants and consequences for recruitment [J]. Trends in Ecology and Evolution, 2000, 15(7): 278-285.
[4] 李景文, 等. 红松混交林生态与经营[M]. 哈尔滨: 东北林业大学出版社, 1997: 93-117.
[5] 徐化成. 中国红松天然林[M]. 北京: 中国林业出版社, 2001.
[6] Jin G Z, Xie X C, Tian Y Y, et al. The pattern of seed rain in the broadleaved-Korean pine mixed forest of Xiaoxing’an Mountains, China [J]. Journal of Korean Forest Society, 2006, 95(5): 621-627.
[7] 刘双, 金光泽. 小兴安岭阔叶红松林种子雨的时空动态[J]. 生态学报, 2008, 28(11): 5731-5740.
[8] 马建章, 鲁长虎. 鸟兽与红松更新的研究评述[J]. 野生动物, 1995, 83(1): 7-10.
[9] 李俊清, 顾兆军. 红松林种子、鼠类和幼苗动态数学模型[J]. 东北林业大学学报, 1988, 16(4): 44-51.
[10] 刘庆洪. 红松阔叶林中红松种子的分布及更新[J]. 植物生态学报与地植物学学报, 1988, 12(2): 134-141.
[11] 刘庆洪. 小兴安岭红松种群天然更新的特点[J]. 林业科学, 1987, 23(3): 266-275.
[12] 李俊清, 祝宁. 红松的种群结构与动态过程[J]. 生态学杂志, 1990, 9(4): 6-10.
[13] 李昕, 徐振邦, 陶大立. 小兴安岭丰林自然保护区阔叶红松林红松天然更新研究[J]. 东北林业大学学报, 1989, 17(6): 1-7.
[14] 葛剑平, 郭海燕, 陈动. 小兴安岭天然红松林种群结构的研究[J]. 东北林业大学学报, 1990, 18(6): 26-31.
[15] 赵秀海. 长白山红松针阔混交林倒木对天然更新的影响(Ⅰ)——倒木自身特点对天然更新的影响[J]. 吉林林学院学报, 1996, 12(1): 1-4.
[16] 阳含熙, 伍业刚. 长白山自然保护区阔叶红松林林木种属组成、年龄结构和更新研究[J]. 林业研究, 1988, 24(1): 18-27.
[17] 国庆喜, 葛剑平, 马承慧, 等. 长白山红松混交林林隙状况与更新研究[J]. 东北林业大学学报, 1998, 26(1): 4-7.
[18] 臧润国, 徐化成. 蛟河阔叶红松林林冠干扰及林隙更新研究[J]. 植物研究, 1999, 19(2): 232-240.
[19] 于振良, 于贵瑞, 王秋凤, 等. 长白山阔叶红松林林隙特征及对树种更新的影响[J]. 资源科学, 2001, 23(6): 64-68.
[20] Li J Q, Li J W. Regeneration and restoration of broad-leaved Korean pine forests in Lesser Xing’an Mountains of Northeast China [J]. Acta Ecologica Sinica, 2003, 23(7): 1268-1277.
[21] Jin G Z, Tian Y Y, Zhao F X, et al. The pattern of natural regeneration by gap size in the broadleaved-Korean pine mixed forest of Xiaoxing’an Mountains, China [J]. Journal of Korean Forest Society, 2007, 96(2): 227-234.
[22] Jin G Z, Li Z H, Tang Y, et al. Spatial distribution pattern and association of crowns and saplings for major tree species in the mixed broadleaved-Korean pine forest of Xiaoxing’an Mountains, China [J]. Journal of Korean Forest Society, 2009, 98(2): 189-196.
[23] 刘足根, 姬兰柱, 郝占庆, 等. 松果采摘对长白山自然保护区红松天然更新的影响[J]. 应用生态学报, 2004, 15(6): 958-962.
[24] Jin G Z, Lee W S, Kang S K, et al. The comparative study on the growth of Pinus koraiensis between natural occurrence in the deciduous stand and artificial plantation [J]. Journal of Research for Kangwon National University, 2000, 20: 37-44.
[25] Grzimek B. Grzimek’s Animal Life Encyclopedia 11(mammals Ⅱ) [M]. Van Nostrand Reinhold Company, 1975: 245-252.
[26] Kim J H, Jin G Z, Shim W S, et al. The study on the occurrence of Pinus koraiensis offsprings in the deciduous forest [J]. Journal of Research for Kangwon National University, 1999, 19: 41-48.
[27] Hayashida M. Seed dispersal by red squirrels and subsequent establishment of Korean pine [J]. Forest Ecology and Management, 1989, 28: 115-129.
[28] 鲁长虎, 刘伯文, 吴建平. 阔叶红松林中星鸦和松鼠对红松种子的取食和传播[J]. 东北林业大学学报, 2001, 29(5): 26-29.
[29] 宗诚, 刘凯, 马建章, 等. 凉水自然保护区松鼠与星鸦对红松种子分散贮藏的特征分析[J]. 动物学杂志, 2007, 42(3): 14-19.
[30] 李茹秀, 王义弘, 周晓峰, 等. 红松阔叶林天然更新的定性与定量研究[J]. 东北林业大学学报, 1988, 16(2): 11-16.
[31] 教士奇, 刘大兴, 闻殿墀. 红松阔叶树混交林的采伐方式与更新方法[J]. 林业科学, 1966, 11(2): 106-113.
[32] 李景文, 詹鸿振, 刘传照. 小兴安岭阔叶红松林采伐迹地更新的研究[J]. 林业科学, 1988, 24(2): 129-138.