doi:

DOI: 10.3724/SP.J.1145.2013.00922

Chinese Journal of Appplied Environmental Biology (应用与环境生物学报) 2013/19:6 PP.922-928

Characteristics of Gaps and Disturbance Regimes of the Alpine Fir Forest in Western Sichuan


Abstract:
Little information is available for forest gap structure and its forming mechanism in alpine forests, which is essential to understanding of forest regeneration in the scenario of global climate change. Therefore, a fi eld investigation to study forest gap structure and its disturbances was carried out in alpine forest in western Sichuan. Forest gaps with density 14.67 per hm2 in this alpine forest were dominated by medium and small gaps. About 63.64% of gap formation was caused by stem breakage in gap center. The expanded gap (EG) and canopy gap (CP) covered 12.60% and 23.05% of forest area, respectively. The natural disturbance frequency was 115.25 m2 hm-2 a-1 and 63.02 m2 hm-2 a-1 for EG and CG, respectively. The return interval of canopy gap was about 260.30 a. About 50.09% of gaps were formed by single gap maker, whose DBH and height ranged from 40 cm to 60 cm and from 25 m to 30 m, respectively. Every gap had 1.53 gap makers on average, with each gap maker forming 103.20 m 2 EG and 56.43 m2 CG, respectively. The average DBH of gap border tree was 50.16 cm, which exhibited a curve distribution with a signi fi cant left peak. Moreover, power function relationships were observed between average DBH and height and the area of EG and CG. Taken together, alpine forest gaps formed in the last two decades occupied a higher proportion compared with those of subalpine forest, with gap maker and border tree having lower height and larger DBH in alpine forest than in subalpine forest. The results indicated that bad weather conditions (such as strong wind and heavy snow) might be an important contributor to regeneration of alpine forest. Fig 5, Tab 4, Ref 33

Key words:climatic change,alpine forest,Abies faxoniana,forest gap,disturbance regimes

ReleaseDate:2015-04-15 08:42:19



[1] Schliemann SA, Bockheim JG. Methods for studying treefall gaps: areview [J]. For Ecol Manage, 2011, 261: 1143-1151

[2] Richards JD, Hart JL. Canopy gap dynamics and development patternsin secondary Quercus stands on the Cumberland Plateau, Alabama, USA[J]. For Ecol Manage, 2011, 262: 2229-2239

[3] 胡蓉, 林波, 刘庆. 林窗与凋落物对人工云杉林早期更新的影响 [J].林业科学, 2011, 47 (6): 24-29 [Hu R, Lin B, Liu Q. Effects of forest gapsand litter on the early regeneration of Picea asperata plantations [J]. SciSilv Sin, 2011, 47 (6): 24-29]

[4] Huth F, Wagner S. Gap structure and establishment of Silver birchregeneration (Betula pendula Roth.) in Norway spruce stands (Piceaabies L. Karst.) [J]. For Ecol Manage, 2006, 229: 314-324

[5] Holladay CA, Kwit C, Collins B. Woody regeneration in and aroundaging southern bottomland hardwood forest gaps: effects of herbivoryand gap size [J]. For Ecol Manage, 2006, 223: 218-225

[6] Zhu JJ, Tan H, Li FQ, Chen M, Zhang JX. Microclimate regimesfollowing gap formation in a montane secondary forest of easternLiaoning Province, P R China [J]. J For Res, 2007, 18 (3): 167-173

[7] d’Oliveira MVN, Ribas LA. Forest regeneration in arti ficial gaps twelveyears after canopy opening in Acre State Western Amazon [J]. For EcolManage, 2011, 261: 1722-1731

[8] Rasche L, Fahse L, Zingg A, Bugmann, H. Enhancing gap modelaccuracy by modeling dynamic height growth and dynamic maximumtree height [J]. Ecol Modell, 2012, 232: 133-143

[9] 刘庆, 吴彦. 滇西北亚高山针叶林林窗大小与更新的初步分析[J]. 应用与环境生物学报, 2002, 8 (5): 453-459 [Liu Q, Wu Y. Effects of gapsize on regeneration of subalpine coniferous forests in northwest Yunnan[J]. Chin J Appl Environ Biol, 2002, 8 (5): 453-459]

[10] 陈建国, 杨扬, 孙航. 高山植物对全球气候变暖的响应研究进展 [J].应用与环境生物学报, 2011, 17 (3): 435-446 [Chen JG, Yang Y, Sun H.Advances in the studies of responses of alpine plants to global warming[J]. Chin J Appl Environ Biol, 2011, 17 (3): 435-446]

[11] 政府间气候变化专门委员会第四次评估报告工作组. 气候变化2007:综合报告[R]. 瑞士, 日内瓦: IPCC, 2007. 1-104, http://www.ipcc.ch/.[The Fourth Assessment of Working Croup. Climate Change 2007:Physical Science Basis [R]. Swiss Confederation, Geneva: IPCC, 2007, 1-104. http://www.ipcc.ch/]

[12] 时明芝 . 全球气候变化对中国森林影响的研究进展 [J]. 中国人口 ·资源与环境, 2011, 21 (7): 68-72 [Shi MZ. The in fl uence of the globalclimate change on forests in China [J]. China Popul Resour Environ, 2011, 21 (7): 68-72]

[13] Yang WQ, Wang KY, Kellom?ki S, Gong HD. Litter dynamics of threesubalpine forests in Western Sichuan [J]. Pedosphere, 2005, 15 (5): 653-659

[14] 鲜骏仁, 胡庭兴, 王开运, 张远彬. 川西亚高山针叶林 林窗特征的研究[J]. 生态学杂志, 2004, 23 (3): 6-10 [Xian JR, Hu TX, Wang KY, Zhang YB. Characteristics of gap in subalpine coniferous forest inwestern Sichuan [J]. Chin J Ecol, 2004, 23 (3): 6-10]

[15] 王微, 陶建平, 李宗峰, 张炜银, 丁易. 卧龙自然保护区亚高山暗针叶林林隙特征研究[J]. 应用生态学报, 2004, 15 (11): 1989-1993 [WangW, Tao JP, Li Z, Zhang WY, Ding Y. Gap features of subalpine darkconiferous forest in Wolong Nature Reserve [J]. Chin J Appl Ecol, 2004, 15 (11): 1989-1993]

[16] 陶建平, 宋 利霞 . 亚高山暗 针叶林 不同林冠 环境下华西箭竹的克隆可塑性[J]. 生态学报, 2006, 26 (12): 4019-4026 [Tao JP, Song LX.Response of clonal plasticity of Fargesia nitida to different canopyconditions of subalpine coniferous forest [J]. Acta Ecol Sin, 2006, 26 (12):4019-4026]

[17] 宋利霞, 陶建平, 冉春燕, 余小红, 王永健, 李媛. 卧龙亚高山暗针叶林 不同林冠环境下华西箭竹的克隆生长 [J]. 植物生态学报, 2007, 31 (4): 637-644 [Song LX, Tao JP, Ran CY, Yu XH, Wang YJ, Li Y.Clonal growth of Fargesia nitida under different canopy conditions in asubalpine dark coniferous forest in Wolong Nature Reserve, China [J]. JPlant Ecol, 2007, 31 (4): 637-644]

[18] 杨娟, 葛剑平, 刘丽娟, 丁易, 谭迎春. 卧龙自然保护区针阔混交林林隙更新规律[J]. 植物生态学报, 2007, 31 (3): 425-430 [Yang J, GeJP, Liu LJ, Di Y, Tan YC. Gap-phase regeneration rules of coniferbroadleaved mixed forest in Wolong Nature Reserve, China [J]. China JPlant Ecol, 2007, 31 (3): 425-430]

[19] 谭波, 吴福忠, 杨万勤, 杨玉莲, 王奥, 康丽娜. 雪被去除对川西高山森林冬季土壤温度及碳、氮、磷动态的影响[J]. 应用生态学报, 2011, 22(10): 2553-2559 [Tan B, Wu FZ, Yang WQ, Yang YL, Wang A, KangLN. Effects of snow pack removal on the dynamics of winter-time soiltemperature, carbon, nitrogen, and phosphorus in alpine forests of west Sichuan [J]. Chin J Appl Ecol, 2011, 22 (10): 2553-2559]

[20] 龙 翠 玲, 余 世 孝, 魏鲁明, 熊志 斌 . 茂 兰喀 斯 特 森 林干扰 状 况与林隙特征[J]. 林业科学, 2005, 41 (4): 13-19 [Long CL, Yu SX, Wei LM, Xiong ZB. Disturbance regimes and the characteristics of caps inMaolan Karst Forest, Guizhou Province [J]. Sci Silv Sin, 2005, 41 (4):13-19]

[21] Dynesius M, Johnson BG. Dating uprooted trees: comparison andapplication of eight methods in a boreal forest [J]. Can J For Res, 1991, 21(5): 655-665

[22] Campbell LJ, Laroque CP. Decay progression and classi fi cation in twoold-growth forests in Atlantic Canada [J]. For Ecol Manage, 2007, 238:293-301

[23] 罗大庆, 郭泉水, 薛会英, 边巴多吉. 藏东南亚高山冷杉林林隙特征与干扰状况研究[J]. 应用生态学报, 2002, 13 (7): 777-780 [Luo DQ, Guo QS, Xue HY, Bianbaduoji. Characteristics and disturbance statusof gaps in subalpine fi r forest in Southeast Tibet [J]. Chin J Appl Ecol, 2002, 13 (7): 777-780]

[24] 韩路, 王海珍, 陈加利, 于军. 塔里木荒漠河岸林干扰状况与林隙特征生态学报[J], 2011, 31 (16): 4699-4708 [Han L, Wang HZ, Chen JL, Yu J. Disturbance regimes and gaps characteristics of the desert riparianforest at the middle reaches of Tarim River [J]. Acta Ecol Sin, 2011, 31(16): 4699-4708]

[25] Lindner M, Siev?nen R, Pretzsch H. Improving the simulation of standstructure in a forest gap model [J]. For Ecol Manage, 1997, 95 (2): 183-195

[26] Bugmann H. A review of forest gap models [J]. Climate Change, 2001, 51: 259-305

[27] 臧润国, 刘静艳, 董大方. 林隙动态与森林生物多样性[M]. 北京: 中国林业出版社, 1999 [Zang RG, Liu JY, Dong DF. Gap Dynamics andForest Biodiversity [M]. Beijing, China: China Forestry PublishingHouse, 1999]

[28] 杨 修 . 长白山暗 针叶林 林 隙一 般 特 征 及干扰 状 况 [J]. 生态学 报, 2002, 22 (11): 1825-1831 [Yang X. Gap characteristics and disturbanceregime in a dark coniferous forest in Changbai Mountain Areas [J]. ActaEcol Sin, 2002, 22 (11): 1825-1831]

[29] 刘庆, 吴彦, 吴宁. 玉龙雪山自然保护区丽江云杉林林窗特征研究[J].应用生态学报, 2003, 14 (6): 845-848 [Liu Q, Wu Y, Wu N. Forest gapcharacteristic in a coniferous Picea likiangensis forest in the YulongSnow Mountain Natural Reserve, Yunnan Province, China [J]. Chin JAppl Ecol, 2003, 14 (6): 845-848]

[30] 何中声, 刘金福, 郑世群, 洪伟, 吴承祯, 徐道炜. 格氏栲天然林林窗边界木特征研究[J]. 福建林学院学报, 2011, 31 (3): 207-211 [He ZS, Liu JF, Zheng SQ, Hong W, Wu CZ, Xu DW. Study on the characteristicsof gap border trees in Castanopsis kawakamii natural forest [J]. J FujianColl For, 2011, 31 (3): 207-211]

[31] 何俊, 赵秀海, 张春雨, 贾玉珍, 范娟, 毛双燕, 张自斌, 廖承开. 九连山自然保护区常绿阔叶林冰雪灾害研究 [J]. 应用与环境生物学报, 2011, 17 (2): 180-185 [He J, Zhao XH, Zhang CY, Jia YZ, Fan J, MaoSY, Zhang ZB, Liao CK. Ice and snow disasters to the evergreen broadleaved forest in the Jiulianshan Nature Reserve in Jiangxi, China [J].Chin J Appl Environ Biol, 2011, 17 (2): 180-185]

[32] 王晓东, 刘惠清. 长白山突变型林线岳桦对气候变化的响应 [J]. 山地学报, 2011, 29 (5): 551-560 [Wang XD, Liu HQ. Climatic responseof Betula ermanii from closed treeline in Changbai Mountains [J]. JMountain Sci, 2011, 29 (5): 551-560]

[33] 王小平, 杨晓晖, 刘晶岚, 周彩贤, 何桂梅. 气候变化挑战下的森林生态系统经营管理[M]. 北京:高等教育出版社, 2013 [Wang XP, YangXH, Liu JL, Zhou CX, He GM. Managing Forest Ecosystems: TheChallenge of Climate Change [M]. Beijing, China: Higher EducationPublishing House, 2013]