[1]李伟,卜兆君,张兵将,等.长白山不同海拔泥炭地泥炭藓残体的分解[J].山地学报,2013,(04):442.
　LI Wei,BU Zhaojun,ZHANG Bingjiang,et al.Decomposition of Sphagnum Litter in 4 Peatlands of the Changbai Mountains along an Altitudinal Gradient[J].Mountain Research,2013,(04):442.
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长白山不同海拔泥炭地泥炭藓残体的分解()

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《山地学报》[ISSN:1008-2186/CN:51-1516]

Title:: Decomposition of Sphagnum Litter in 4 Peatlands of the Changbai Mountains along an Altitudinal Gradient

Author(s):: LI Wei; BU Zhaojun; ZHANG Bingjiang; LONG Chuan; TANG Ruijiang; CUI Qianwang; Key Laboratory for Wetland Conservation and Vegetation Restoration, Ministry of Environmental Protection, Institute for Peat and Mire Research, Northeast Normal University, Changchun 130024, China

摘要:: 在当前气候变化的背景下,沿海拔梯度,选择长白山4处泥炭地为研究地,以喙叶泥炭藓和大泥炭藓为分解材料,于丘上和丘间两种生境进行分解实验,研究物种、生境以及海拔下降导致的增温对泥炭藓残体分解速率的影响。结果表明,增温以及生境和物种差异均影响泥炭藓残体的分解,即增温促进泥炭藓分解,丘间生境更利于泥炭藓残体分解,喙叶泥炭藓分解率高于大泥炭藓。比较而言,物种即分解材料的内在质地是影响植物残体分解的主要因素,即高氮含量和低C/N比的喙叶泥炭藓更易分解。增温与物种及增温与生境间均存在交互作用,可以改变生境和物种差异对泥炭藓残体分解的影响,可能会对泥炭地碳汇功能产生深远影响。

Abstract:: Sphagnum is the dominant and mainly peatforming plant component in northern peatlands. The substantial function of carbon sequestration for peatlands is due to the slow decomposition of Sphagnum. Until now, we still know very little about the main factors that affect Sphagnum decomposition in Northern China under the current climate change background. Along an altitudinal gradient, we selected Sphagnum fallax and S. palustre litter as materials in two habitats hummocks and hollows of four peatlands, Jinchuan, Hani, Yuanchi and Chichi in the Changbai Mountains, to study the effects of warming namely altitudinal decrease, habitat and species on decomposition rate of Sphagnum litter. The results show that, slight warming promoted Sphagnum litter decomposition; the decomposition rate of S. fallax was higher than S. palustre; hollow habitats were beneficial to Sphagnum decomposition. Overall species namely intrinsic quality of litter was the main factor to affect Sphagnum decomposition. S. fallax with high nitrogen content and low C/N was more easily to decompose. Interaction between warming and species and between warming and habitat can change species and habitats effects on decomposition, and it may create a farreaching impact on carbon sink function of peatlands.

[1]宗盛伟,许嘉巍,吴正方,等.长白山西坡小叶章侵入苔原带调查与机理分析[J].山地学报,2013,(04):448.
　Changbai Mountain ZONG Shengwei,XU Jiawei,WU Zhengfang.Investigation and mechanism analysis on the Invasion of Deyeuxia.angustifolia to Tundra Zone in Western Slope of[J].Mountain Research,2013,(04):448.
[2]宋长春,崔之久.长白山二道白河源区倒石堆发育特征[J].山地学报,1992,(03):155.
[3]白军红,邓伟.长白山苔原湿地资源及可持续利用研究[J].山地学报,2002,(02):228.
[4]佟守正,王琦,李光,等.长白山自然保护区旅游灾害及其防治对策[J].山地学报,2002,(S1):133.
[5]靳英华,吴正方.长白山森林植被的生态气候学指标[J].山地学报,2003,(01):68.
[6]崔晓阳,宋金凤,张韫.长白山野生经济植物中4种微量元素的含量与变异因素[J].山地学报,2003,(06):653.
[7]金永焕,谷会岩,申光日,等.长白山区天然红松阔叶林乔木种多样性变化[J].山地学报,2004,(01):59.
[8]龙恩,程维明,周成虎,等.基于Srtm-DEM与遥感的长白山基本地貌类型提取方法[J].山地学报,2007,(05):557.

备注/Memo:: 收稿日期(Received date)：2012-06-22；改回日期(Accepted)：2013-05-30。
基金项目(Foundation item)：国家自然科学
基金项目（40971036，40830535）和环保公益性行业科研专项资金项目(201109067)资助. [Supported by the National Science Foundation of China (40971036, 40830535) and Special Projects for Public Service Scientific Research of Environmental Protection (201109067).]
作者简介（Biography）：李伟（1990-），男，湖南人，学士，主要从事自然地理学与湿地生态学研究。[Li Wei (1990- ), male, born in Hunan, Bachelor, mainly engages in studying in physical geography and wetland ecology.]. E-mail：liw781@nenu.edu.cn *通信作者(Corresponding author)：卜兆君（1972-），男，黑龙江人，博士，副教授，主要从事湿地生态学与苔藓植物生态学研究。[Bu Zhaojun, Ph D, born in Heilongjiang, associate professor, mainly engages in studying in wetland ecology and bryophyte ecology.] E-mail: buzhaojun@nenu.edu.cn

更新日期/Last Update: 1900-01-01