全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用：99美元
投递稿件

查看量下载量

相关文章

更多...
草地学报  2014 

西藏纳木错高寒草原、高寒草甸和沼泽化草甸主要温室气体通量对比研究

DOI: 10.11733/j.issn.1007-0435.2014.03.010, PP. 493-501

Keywords: 高寒草原,高寒草甸,沼泽化草甸,生态系统呼吸,CH4通量,N2O通量

Full-Text   Cite this paper   Add to My Lib

Abstract:

青藏高原高寒草地占我国天然草地的40%，研究其温室气体源汇强度及驱动因子具有重要意义。采用静态箱-气相色谱法，在西藏纳木错地区开展高寒草原、高寒草甸和沼泽化草甸的生态系统呼吸、CH4和N2O通量观测，生长季内的观测表明高寒草原和高寒草甸生态系统呼吸分别为（283.7±14.4）mg·m-2·h-1和（275.7±20.6）mg·m-2·h-1，低于有机质丰富的沼泽化草甸，为（591.6±53.2）mg·m-2·h-1。高寒草原和高寒草甸均是CH4的汇，其生长季均值分别为（-84.9±7.6）μg·m-2·h-1和（-39.2±4.6）μg·m-2·h-1；而沼泽化草甸是CH4的源其均值为（149.2±34.2）μg·m-2·h-1。高寒草原、高寒草甸和沼泽化草甸均为N2O的源，生长季排放量分别为（7.3±2.8），（3.0±1.1）和（2.2±4.3）μg·m-2·h-1。土壤水分总体控制着高寒草地CH4通量的时空变化，在土壤水分含量约大于30%的沼泽化草甸表现为CH4的排放源，而在土壤水分含量低于30%的高寒草原和草甸表现为CH4的汇；生长季水分含量越高，对CH4的吸收越弱。

 References

[1]  National oceanic and atmospheric administration[R]. 2013. http://www.researchmatters.noaa.gov
[2]  World neteorological organization[R]. 2012. http://www.wmo.int
[3]  Conrad R. Soil microorganisms as controllers of atmospheric trace gases (H2,CO,CH4,OCS,N2O and NO) [J].Microbiological Reviews,1996,60(4):609-640
[4]  Conant R T, Paustian K. Potential soil carbon sequestration in overgrazed grassland ecosystems [J]. Global Biogeochemical Cycles,2002,16(4):1143-1151
[5]  Kang L, Han X G, Zhang Z B, et al. Grassland ecosystems in China: Review of current knowledge and research advancement [J].Philosophical Transactions Series B:Biology Science,2007,362(1482):997-1008
[6]  中国科学院中国植被图编辑委员会. 中国植被图集1:1000000[M].北京:科学出版社,2001
[7]  中国科学院青藏高原综合科学考察队.西藏植被[M].北京:科学出版社,1988:182-199
[8]  孙鸿烈.青藏高原形成与演化[M].上海:上海科学技术出版社,1996:1-383
[9]  吕宪国.中国湿地与湿地研究[M].石家庄:河北科学技术出版社,2008:660-669
[10]  金会军,吴杰,程国栋,等.青藏高原湿地CH4排放评估[J].科学通报,1999,44(16):1758-1762
[11]  Chen H, Yao S P, Wu N, et al. Determinants influencing seasonal variations of methane emissions from alpine wetlands in Zoige Plateau and their implications [J].Journal of Geophysical Research,2008,113(D12):D12303
[12]  Hirota M, Tang Y H, Hu Q W, et al. Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland [J].Soil Biology and Biochemistry,2004,36(5):737-748
[13]  游庆龙,康世昌,李潮流,等.青藏高原纳木错气象要素变化特征[J].气象,2007,33(3):54-60
[14]  王迎红.陆地生态系统温室气体排放观测方法研究、应用及结果对比分析[D].北京:中国科学院研究生院,2005:91-95
[15]  赵景学.当雄县天然草地改良及牧户饲草平衡供给模式研究[D].兰州:兰州大学,2011:11-14
[16]  赵亮,李英年,赵新全,等.青藏高原3种植被类型经生态系统CO2交换量的比较[J].科学通报,2005,50(9):926-932
[17]  魏达.西藏纳木错高寒草地生态系统呼吸、CH4和N2O通量及其对氮沉降和围栏禁牧的响应[D].北京:中国科学院大学,2012:39-41
[18]  Sikora L J, McCoy J L. Attempts to determine available carbon in soils [J]. Biology and Fertility of Soil,1990,9(1):19-24
[19]  柳敏,宇万太,姜子绍,等.土壤活性有机碳[J].生态学杂志,2006,25(11):1412-1417
[20]  Kelting D L, Burger J A, Edwards G S. Estimating root respiration, microbial respiration in the rhizosphree, and root free soil respiration in forest soil [J].Soil Biology and Biochemistry,1998,30(7):961-968
[21]  Cao G, Tang Y, Mo W, et al. Grazing intensity alters soil respiration in an alpine meadow on the Tibetan plateau [J].Soil Biology and Biochemistry,2004,36(2):237-243
[22]  张法伟,刘安花,李英年,等.青藏高原高寒湿地生态系统CO2通量[J].生态学报,2008,28(2):453-462
[23]  王德宣,宋长春,王毅勇,等. 若尔盖高原沼泽湿地与草地二氧化碳通量的比较[J]. 应用生态学报,2008,19(2):285-289
[24]  董云社,章申,齐玉春,等. 内蒙古典型草地CO2,N2O,CH4通量的同时观测及其日变化[J].科学通报,2000,45(3):318-322
[25]  范学霞,褚海燕,林先贵.土壤微生物量和呼吸强度大气CO2浓度升高的响应[J].植物营养与肥料学报,2005,11(4):564-567
[26]  Castro M, Steudler P, Melillo J, et al. Factors controlling atmospheric methane consumption by temperate forest soils [J].Global Biogeochemical Cycles,1995,9(1):1-10
[27]  杨继松,刘景双,王金达,等.三江平原生长季沼泽湿地CH4、N2O排放及其影响因素[J].植物生态学报,2006,30(3):432-440
[28]  孔郑. 黄河源区“黑土型”退化高寒草地CO2、CH4排放特征研究[D].兰州:甘肃农业大学,2007:33-35
[29]  王艳芬,马秀枝,季宝明,等.内蒙古草甸草原CH4和N2O排放通量的时间变异[J].植物生态学报,2003,27(6):792-796
[30]  Wang Y, Xue M, Zheng X, et al. Effects of environmental factors on N2O emission from and CH4 uptake by the typical grassland in the Inner Mongolia [J]. Chemosphere,2005,58(2):205-215
[31]  Jiang C, Yu G, Fang H, et al. Short-term effect of increasing nitrogen deposition on CO2, CH4 and N2O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau [J]. Atmospheric Environment,2010,44(24): 2920-2926
[32]  王德宣,吕宪国,丁维新,等.若尔盖高原沼泽湿地CH4排放研究[J].地球科学进展,2002,17(6):877-880
[33]  王智平,曾江海,张玉铭.农田土壤N2O排放的影响因素[J].农业环境保护,1994,13(1):40-42
[34]  宋长春,王毅勇,王跃思,等.季节性冻融期沼泽湿地CO2, CH4和N2O排放动态[J].环境科学,2005,26(4):7-12
[35]  王德宣,宋长春,王跃思,等.若尔盖高原沼泽湿地N2O排放通量研究[J].生态科学,2005,24(3):193-196
[36]  William H S. An estimate of the global sink for nitrous oxide in soils [J]. Global Change Biology,2013,19(10):2929-2931
[37]  Wei D, Xu-Ri, Wang Y, et al. Responses of CO2, CH4 and N2O fluxes to livestock exclosure in an alpine steppe on the Tibetan Plateau [J]. Plant and Soil,2012,359(1/2):45-55
[38]  Lydie C, Nicole W, Aurelie M, et al. Soils, a sink for N2O? A review [J].Global Change Biology,2007,13(1):1-17
[39]  陈全胜,李凌浩,韩兴国,等. 水分对土壤呼吸的影响及机理[J].生态学报,2003,23(5):972-978
[40]  De Jong E, Schappert H J, Macdonald K B. Carbon dioxide evolution from virgin and cultivated soil as affected by management practices and climate [J]. Canadian Journal of Soil Science,1974,54(3):299-307
[41]  Joabsson A, Christensen T R. Methane emissions from wetlands and their relationship with vascular plants: An Arctic example [J]. Global Change Biology,2001,7(8):919-932
[42]  Striegl R G, Mcconnaughey T A, Thorstenson D C, et al. Consumption of atmospheric methane by desert soil [J]. Nature,1992,356(6374):145-147
[43]  陈全胜,李凌浩,韩兴国,等.典型温带草原群落土壤呼吸温度敏感性与土壤水分的关系[J]. 生态学报,2004,24(4):831-836
[44]  Sheppard S K, Lloyd D. Diurnal oscillations in gas production (O2, CO2, CH4, and N2) in soil monoliths[J]. Biological Rhythm Research,2002,33(5):577-591
[45]  Yue J, Shi Y, Ligang W, et al. Methane and nitrous oxide emissions from rice field and related microorganism in black soil, northeastern China [J]. Nutrient Cycling in Agroecosystem,2005,73(2/3):293-301
[46]  徐华,邢光熹,蔡祖聪,等. 土壤水分状况和指导对稻田N2O排放的影响[J].土壤学报,2000,37(4):499-505
[47]  郑循华,王明星,王跃思,等. 华东稻麦轮作生态系统的N2O的排放研究[J].应用生态学报,1997,8(5):495-499
[48]  颜晓元,施书莲,杜丽娟,等. 水分状况对水田土壤N2O排放的影响[J].土壤学报,2000,37(4):482-487
[49]  Ma W K, Bedard-Haughn A, Siciliano S D, et al. Relationship between nitrifier and denitrifier community composition and abundance in predicting nitrous oxide emissions from ephemeral wetland soils[J]. Soil Biology and Biochemistry,2008,40(5):1114-1123
[50]  Ciarlo E, Conti M, Bartoloni N, et al. The effect of moisture on nitrous oxide emissions from soil and the N2O/(N2O+N2) ratio under laboratory conditions [J].Biology and Fertility of Soils,2007,43(6):675-681
[51]  Saarnio S, Alm J, Silvola J, et al. Seasonal variation in CH4 emissions and production and oxidation potentials at microsite on an oligotrophic pine fen [J]. Oecologia,1997,110(3):414-422
[52]  Curry C L. Modeling the soil consumption of atmospheric methane at the global scale [J]. Global Biogeochemical Cycles,2007,21(4):GB4012
[53]  Wang S P, Yang X X, Lin X W, et al. Methane emission by plant communities in an alpine meadow on the Qinghai-Tibetan Plateau: A new experimental study of alpine meadows and oat pasture [J].Biology Letters,2009,5(4):535-538

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133