微生境对辽东栎幼苗生长的影响

摘要/Abstract

摘要： 以早期辽东栎(Quercus wutaishanica)实生幼苗个体为研究对象,探讨影响辽东栎幼苗生长的关键微生境因子。采用典型样线调查法,对子午岭马栏林区1～3龄的辽东栎实生幼苗的生长指标和幼苗所处的微生境变量进行了调查分析。结果表明:3龄幼苗的株高、基径、芽数目与1、2龄幼苗有显著性差异,随着龄级的增长幼苗的生长率逐渐降低,影响幼苗生长的微生境变量呈增加趋势,对微生境做出响应的生长指标也呈增加趋势,暗示着微生境对幼苗生长的影响具有时滞效应。枯落物是限制幼苗生长的重要因素之一,乔木层的适度遮荫是1、2龄幼苗生长的最佳光照环境,3龄幼苗生长的最佳环境则是林隙,可见辽东栎幼苗要成功定居必须等待林窗的出现。

关键词: 早期幼苗, 微生境, 辽东栎(Quercus wutaishanica), 时滞效应, 林隙, 枯落物

Abstract: In this paper, Quercus wutaishanica seedlings were selected as the research object to elucidate the effect of microhabitat on the growth of the seedlings. In the Q. wutaishanica forest in Malan forest zone on the Mt. Ziwuling, the growth parameters of 1-3-year-old Q. wutaishanica seedlings and the microhabitat variables were studied by using the typical line transect method and laboratory test. The results showed that the height, stem base diameter, bud number of seedlings of 3-year-old seedlings were significantly different from those of 1-year-old and 2-year-old seedlings. Along with the increase of seedling age, the seedling growth rate reduced gradually, and the microhabitat variables and the growth parameters of seedlings were in an increase trend, which revealed that there was a time lag in the effects of microhabitat on the growth of seedlings. Litters are one of the important factors of restricting seedling growth, a suitable shade of tree layer is an optimal environment for the growth of 1-year-old and 2-year-old seedlings, and the optimal environment for the growth of 3-year-old seedlings is gap. Therefore, gap is necessary for the ecesis of Q. wutaishanica.

Key words: early seedling, microhabitat, Quercus wutaishanica, time lag effect, gap, litter

郑维娜, 王孝安, 郭华, 王丹, 刘鹏, 刘史力. 微生境对辽东栎幼苗生长的影响[J]. 干旱区研究, 2013, 30(6): 1049-1055.

ZHENG Wei-na, WANG Xiao-an, GUO Hua, WANG Dan, LIU Peng, LIU Shi-li. Effects of Microhabitat on the Growth of Quercus wutaishanica Seedlings[J]. Arid Zone Research, 2013, 30(6): 1049-1055.

参考文献

[1] 徐振邦,代力民,陈吉泉,等.长白山红松阔叶混交林森林天然更新条件的研究[J]. 生态学报,2001,21(9):1 413-1 420.
[Xu Zhenbang,Dai Limin,Chen Jiquan,et al.Natural regeneration condition in Pinus koraiensis broad-leaved mixed forest[J]. Acta Ecologica Sinica,2001,21(9):1 413-1 420.]
[2] 彭闪江,黄忠良,彭少麟,等.植物天然更新过程中种子和幼苗死亡的影响因素[J]. 广西植物,2004,24(2):113-121.
[Peng Shanjiang,Huang Zhongliang,Peng Shaolin,et al.Factors influencing mortality of seed and seedling in plant nature regeneration process[J]. Guihaia,2004,24(2):113-121.]
[3] 马姜明,李昆,张昌顺,等.元谋干热河谷苏门答腊金合欢、新银合欢人工林天然更新初步研究[J]. 应用生态学报,2006,17(8):1 365-1 369.
[Ma Jiangming,Li Kun,Zhang Changshun,et al. Regeneration of Acacia glauca and Leucaena leucacephala plantations in Yuanmou dry and hot valley[J]. Chinese Journal of Applied Ecology,2006,17(8):1 365-1 369.]
[4] Willson M,Traveset A.The Ecology of Seed Dispersal[M]. New York:CABI Publishing,2000:85-110.
[5] Vivian-Smith G.Microtopographic heterogeneity and floristic diversity in experimental wetland communities[J]. Journal of Ecology,1997,85(1):71-81.
[6] Urs H,Peter B.Microsite patterns of conifer seedling establishment and growth in a mixed stand in the southern Alps[J]. Forest Ecology and Management,2005,210:67-79.
[7] Fahey T J,Battles J J,Wilson G F.Responses of early successional northern hard wood forests to changes in nutrient availability[J] .Ecological Monographs,1998,68(2):183-212.
[8] Thompson K,Grime J P.A comparative study of germination response to diurnally-fluctuating temperatures[J]. Journal of Applied Ecology,1983,20:141-156.
[9] 韩有志,王政权.森林更新与空间异质性[J]. 应用生态学报,2002,13(5):615-619.
[Han Youzhi,Wang Zhengquan.Spatial heterogeneity and forest regeneration[J]. Chinese Journal of Applied Ecology,2002,13(5):615-619.]
[10] 杜亚娟,徐化成,于汝元.兴安落叶松林下植被、枯枝枯落物和动物对幼苗发生影响的研究[J]. 北京林业大学学报,1993,15(4):12-20.
[Du Yajuan,Xu Huacheng,Yu Ruyuan.The effect of understory,litter and small mammals on seedling occurrence of Larix gmelini[J]. Journal of Beijing Forestry University,1993,15(4):12-20.]
[11] 陈迪马,潘存德,刘翠玲,等.影响天山云杉天然更新与幼苗存活的微生境变量分析[J]. 新疆农业大学学报,2005,28(3):35-39.
[Chen Dima,Pan Cunde,Liu Cuiling,et al.Analysis on microhabitat variables affecting natural regeneration and survival of seedlings in Picea schrenkiana stand[J]. Journal of Xinjiang Agricultural University,2005,28(3):35-39.]
[12] 王巍,李庆康,马克平.东灵山地区辽东栎幼苗的建立和空间分布[J]. 植物生态学报,2000,24(5):595-600.
[Wang Wei,Li Qingkang,Ma Keping.Establisgment and spatial distribution of Quercus wutaishanica Koidz.seedlings in Dongling Mountain[J]. Acta Phytoecologica Scnica,2000,24(5):595-600.]
[13] 田丽,王孝安,郭华,等.黄土高原马栏林区辽东栎更新特性研究[J]. 广西植物, 2007,7(2):191-196.
[Tian Li,Wang Xiao’an,Guo Hua,et al.Studies on the regenerative characteristics of Quercus wutaishanica in Malan Forest[J]. Guihaia,2007,7(2):191-196.]
[14] 李永兵,王辉,付菁.子午岭辽东栎林林窗主要树种更新生态位[J]. 生态学杂志,2008,27(12):2 062-2 066.
[Li Yongbing,Wang Hui,Fu Jing.Regeneration niche of in tree species in Quercus liaotungensis forest gaps in Ziwuling Mountain[J]. Chinese Journal of Ecology,2008,27(12):2 062-2 066.]
[15] 张吕醉,王孝安,郭华,等.辽东栎林林隙特征及其对群落更新的影响[J]. 生态学杂志,2008,27(11):1 835-1 840.
[Zhang Lvzui,Wang Xiao’an,Guo Hua,et al.Gap characteristics and its effects on community regeneration of Quercus liaotungensis forest on Loess Plateau[J]. Acta Ecologica Sinica,2008,27(11):1 835-1 840.]
[16] 陈智平,王辉,袁宏波.子午岭辽东栎林土壤种子库及种子命运研究[J]. 甘肃农业大学学报,2005,40(1):7-12.
[Chen Zhiping,Wang Hui,Yuan Hongbo.Studies on soil seed bank and seed fate of Quercus liaotungensis forest in the Ziwu Mountains[J]. Journal of Gansu Agricultural University,2005,40(1):7-12.]
[17] 程积民,赵凌平,程杰.子午岭60年辽东栎林种子质量与森林更新[J]. 北京林业大学学报,2009,31(2):10-16.
[Cheng Jimin,Zhao Lingping,Cheng Jie.Seed quality and forest regeneration of a 60-year Quercus liaotungensis forest in the Ziwuling region,northwestern China[J]. Journal of Beijing Forestry University,2009,31(2):10-16.]
[18] 郭江超,王孝安,郭华,等.黄土高原子午岭辽东栎更新层与灌木层物种种间联结分析[J]. 干旱区研究,2010,27(3):344-349.
[Guo Jiangchao,Wang Xiao’an,Guo Hua,et al.Analysis on interspecific association of Quercus liaotungensis in regenerated Layer with shrub species in the Ziwuling region of the Loess Plateau[J]. Arid Zone Research,2010,27(3):344-349.]
[19] 郭华,王孝安,王世雄,等.子午岭马兰林区辽东栎幼苗定居限制的初步研究[J]. 广西植物,2011,31(3):364-369.
[Guo Hua,Wang Xiao’an,Wang Shixiong,et al.A pilot study of establishment limitation of Quercus wutaishanica seedlings in Malan Forest Region on Mt.Ziwuling[J]. Guihaia,2011,31(3):364-369.]
[20] 潘开文,何静,吴宁.森林凋落物对林地微生境的影响[J]. 应用生态学报,2004,15(1):153-158.
[Pan Kaiwen,He Jing,Wu Ning.Effect of forest litter on microenvironment conditions of forestland[J]. Chinese Journal of Applied Ecology,2004,15(1):153-158.]
[21] Facelli J M,Pickett S T A.Indirect effects of litter on woody seedlings subject to herb competition[J]. Oikos,1991,62:126-138.
[22] 郭华,王孝安,朱志红.子午岭三种生境下辽东栎幼苗定居限制[J]. 生态学报,2010,30(23):6 521-6 529.
[Guo Hua,Wang Xiao’an,Zhu Zhihong.Recrument limitation of Quercus wutaishanica seedlings in three habitats in Mt.Ziwuling[J]. Acta Ecologica Sinica,2010,30(23):6 521-6 529.]
[23] 王巍,刘灿然,马克平,等.东灵山两个落叶阔叶林中辽东栎种群结构和动态[J]. 植物学报,1999,41 (4) :425-432.
[Wang Wei,Liu Canran,Ma Keping,et al.Population structure and dynamics of Quercus liaotungensis in two broad-leaved deciduous forests in Dongling Mountain[J]. Acta Botanica Sinica,1999,41(4):425-432.]
[24] 徐化成,杜亚娟.兴安落叶松落叶量和幼苗发生动态的研究[J]. 林业科学,1993,29(4):298-306.
[Xu Huacheng,Du Yajuan.Amount of falling seed and seedling occurrence dynamics in primitive Larix gmelini forest[J]. Scientia Silvae Sinicae,1993,29(4):298-306.]
[25] Facelli J M.Multiple indirect effects of plant litter effect the establishment of woody seedling in old fields[J]. Ecology,1994,75(6):1 727-1 735.
[26] 于晓东,周红章,罗天宏,等.昆虫寄生对辽东栎种子命运的影响[J]. 昆虫学报,2001,44(4):518-524.
[Yu Xiaodong,Zhou Hongzhang,Luo Tianhong,et al.Insect infestation and acorn fate in Quercus liaotungensis[J]. Acta Entomologica Sinica,2001,44(4):518-524.]
[27] 王贺新,李根柱,于冬梅,等.枯枝落叶层对森林天然更新的障碍[J]. 生态学杂志,2008,27(1):83-88.
[Wang Hexin,Li Genzhu,Yu Dongmei,et al.Barrier effect of litter layer on natural regeneration of forests:A review[J]. Chinese Journal of Ecology,2008,27(1):83-88.]
[28] 韩海荣,贺顺钦,张学培,等.辽东栎苗木早期生长与光的关系[J]. 北京林业大学学报,2000,22(4):97-100.
[Han Hairong,He Shunqin,Zhang Xuepei,et al.The effect of light intensity on the growth and development of Quercus liaotungensis seedlings[J]. Journal of Beijing Forestry University,2000,22(4):97-100.]
[29] Li Q K,Ma K P.Factors affecting establishment of Quercus liaotungensis Koidz under maturemixed oad forest overstory and in shrubland[J]. Forest Ecology and Management,2003,176(1/3):133-146.
[30] 王中磊,高贤明.锐齿槲栎林的天然更新:坚果、幼苗库和径级结构[J]. 生态学报,2005,25(5):986-993.
[Wang Zhonglei,Gao Xianming.The regeneration of Quercus aliena var.acuteserrata:Acorn status,seedling pool and size structure[J]. Acta Ecologica Sinica,2005,25(5):986-993.]
[31] 闫兴富,曹敏.林窗对热带雨林冠层树种绒毛番龙眼幼苗生长的影响[J]. 应用生态学报,2008,19(2):238-244.
[Yan Xingfu,Cao Min.Effects of forest gap on the seedling growth of a canopy tree species Pometia tomentosa in tropical rain forest of Xishuangbanna[J]. Chinese Journal of Applied Ecology,2008,19(2):238-244.]
[32] 王艺,韦小丽.不同光照对植物生长、生理生化和形态结构影响的研究进展[J]. 山地农业生物学报,2010,29(4):353-359.
[Wang Yi,Wei Xiaoli.Advance on the effects of different light environments on growth,physiological biochemistry and morphostructure of plant[J]. Journal of Mountain Agriculture and Biology,2010,29(4):353-359.]
[33] 李峰,王孝安.林隙对黄土高原马栏林区优势种更新的影响[J]. 干旱区研究,2011,28(2):321-327.
[Li Feng,Wang Xiao’an.Effect of forest gap on regeneration of dominant species in Malan Forest Area on the Loess Plateau[J]. Arid Zone Research,2011,28(2):321-327.]
[34] 郭华,王孝安,王世雄,等.黄土高原子午岭辽东栎(Quercus liaotungensis) 幼苗动态生命表及生存分析[J]. 干旱区研究,2011,28(6):1 005-1 010.
[Guo Hua,Wang Xiao’an,Wang Shixiong,et al.Dynamic life table and analysis on survival of Quercus liaotungensis seedlings in Mt.Ziwuling of the Loess Plateau[J]. Arid Zone Research,2011,28(6):1 005-1 010.]
[35] Poorter L,Jans L,Bongers E,et al.Spatial distribution of gaps along three catenas in the moist forest of Taï National Park,Ivory Coast[J]. Journal of Tropical Ecology,1994,10:385-398.
[36] Daws M I,Mullins C E,Burslem D F R P,et al.Topographic position affects the water regime in a semideciduous tropical forest in Panama[J]. Plant Soil,2002,238:79-90.
[37] Becker P,Rabenold P E,Idol J R,et al.Water potential gradients for gaps and slopes in a Panamanian tropical moist forest’s dry season[J]. Journal of Tropical Ecology,1988,4:173-184.
[38] Clark D B,Clark D A,Rich P M,et al.Landscape scale evaluation of understory light and canopy structure:Methods and application in a neotropical lowland rain forest[J]. Canadian Journal of Forest Research,1996,26:747-757.
[39] Silver W L,Scatena F N,Johnson A H,et al.Nutrient availability in a montane wet tropical forest:Spatial patterns and methodological considerations[J]. Plant Soil,1994,164:129-145.
[40] Criddle R S,Hopkin M S,McArthur E D,et al.Plant distribution and the temperature coefficient of metabolism[J]. Plant,Cell and Environment,1994,17:233-243.
[41] 夏菲,王孝安,郭华,等.不同龄级辽东栎幼苗根系形态对幼苗生长的影响[J]. 中国农学通报,2012,28(10):32-36.
[Xia Fei,Wang Xiao’an,Guo Hua,et al.Effects of root morphology on seedling growth of Quercus liaotungensis in different age classes on Loess Plateau[J]. Chinese Agricultural Science Bulletin,2012,28(10):32-36.]