PDF Download

[1]GUO Xiaowei,DAI Licong,LI Yikang,et al.Major Greenhouse Gas Fluxes in Different Degradation Levels of Alpine Meadow on the Qinghai-Tibetan Plateau[J].Research of Soil and Water Conservation,2019,26(05):188-194,209.

Copy

Major Greenhouse Gas Fluxes in Different Degradation Levels of Alpine Meadow on the Qinghai-Tibetan Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 05 Page number: 188-194,209 Column: Public date: 2019-09-06

Title:: Major Greenhouse Gas Fluxes in Different Degradation Levels of Alpine Meadow on the Qinghai-Tibetan Plateau

Author(s):: GUO Xiaowei¹, DAI Licong^1,2, LI Yikang¹, ZHANG Fawei¹, LIN Li¹, LI Qian¹, QIAN Dawen¹, FAN Bo¹, KE Xun^1,2, SHU Kai^1,2; 1. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China;
2. College of Resources and Environment, University of the Chinese Academy of Sciences, Beijing 100039, China

Keywords:: Tibetan Plateau; alpine meadows; greenhouse gas; environmental factor

CLC:: S812

DOI:: -

Abstract:: Qinghai-Tibet Plateau is sensitive and fragile to climate change and human activities. This study took four degradation stages of alpine meadow as the research site, i. e. natibe alpine meadow (NM), lightly degraded meadow (LM), moderately degraded meadow (MM) and heavily degraded meadow (HM). Greenhouse gas fluxes were measured using static chambers and gas chromatography. The results indicate that grassland greenhouse gas fluxes are significant different (p<0.05). The CH₄ absorption of HM significantly increases compared with that of NM, with the aggravation of grassland degradation, CO₂ flux decreases and N₂O flux increases. Grazing first affects the vegetation part of the alpine meadow, soil environment changes are much later than vegetation. The stepwise regression analysis shows that the main influencing factors of methane flux in meadow are soil compactness, organic matter and vegetation coverage, the main influencing factors of carbon dioxide flux are total phosphorus, vegetation coverage and total nitrogen, the main influencing factors of nitrous oxide flux were organic matter, compactness and dead root biomass. When alpine meadow degradation succession develops in the stage of severe degradation, a large amount of greenhouse gases emit.

References:: [1] Bowen G J, Ehleringer J R, Chesson L A, et al. Stable isotope ratios of tap water in the contiguous United States[J]. Water Resources Research, 2015,43(3):399-407.
[2] Chen A, Huang H Z, Zhang Z N, et al. Livestock grazing ingestion suppressed the dominant species population(Stipa aliena)germination:a laboratory experiment[J]. Nordic Journal of Botany, 2012,30(5):635-639.
[3] Christensen B T. Physical fractionation of soil and structural and functional complexity in organic matter turnover[J]. European Journal of Soil Science, 2010,52(3):345-353.
[4] Dong S K, Wen L, Li Y Y, et al. Soil quality effects of grassland degradation and restoration on the Qinghai-Tibetan plateau[J]. Soil Science Society of America Journal, 2012,76(6):22-56.
[5] Fernandez D P, Neff J C, Reynolds R L. Biogeochemical and ecological impacts of livestock grazing in semi-arid southeastern Utah, USA[J]. Journal of Arid Environments, 2008,72(5):777-791.
[6] Fornara D A, Bardgett R, Steinbeiss S, et al. Plant effects on soil N mineralization are mediated by the composition of multiple soil organic fractions[J]. Ecological Research, 2011,26(1):201-208.
[7] Wang G X,Qian J, Cheng G D, et al. Soil organic carbon pool of grassland soils on the Qinghai-Tibetan Plateau and its global implication[J]. Science of the Total Environment, 2002,291(1):207-217.
[8] Grime J P, Fridley J D, Askew A P, et al. Long-term resistance to simulated climate change in an infertile grassland[J]. Proc Natl Acad Sci U S A,2008,105(29):10028-10032.
[9] Jobbágy E G, Jackson R B. The Distribution of Soil Nutrients with Depth:Global Patterns and the Imprint of Plants[J]. Biogeochemistry, 2001,53(1):51-77.
[10] Krümmelbein J, Peth S, Zhao Y, et al. Grazing induced alterations of soil hydraulic properties and functions in Inner Mongolia, PR China[J]. Journal of Plant Nutrition and Soil Science, 2009,172(6):769-776.
[11] Kumbasli M, Makineci E, Cakir M. Long-term effects of red deer(Cervus elaphus)grazing on soil in a breeding area[J]. Journal of Environmental Biology, 2010,31(1/2):185-193.
[12] 曹广民,李英年,张金霞,等.高寒草甸不同土地利用格局土壤CO₂的释放量[J].环境科学,2001,22(6):14-19.
[13] 吴琴,胡启武,曹广民,等.高寒矮嵩草草甸冬季CO₂释放特征[J].生态学报,2011,31(18):5107-5112.
[14] 李尚宏,周赓,杜岩功.冻融交替对高寒草甸N₂O排放速率的影响[J].草原与草坪,2018,38(3):85-89.
[15] Kato T, Tang Y, Gu S, et al. Carbon dioxide exchange between the atmosphere and an alpine meadow ecosystem on the Qinghai-Tibetan Plateau, China[J]. Agricultural and Forest Meteorology, 2004,124(1):121-134.
[16] 郭小伟,杜岩功,林丽,等.青藏高原北缘3种高寒草地的CH₄, CO₂和N₂O通量特征的初步研究[J].草业科学,2016,33(1):27-37.
[17] 周贵尧,吴沿友.放牧对草原生态系统不同气候区碳库影响的Meta分析[J].草业学报,2016,10(3):1-10.
[18] 唐国勇,黄道友,童成立,等.红壤丘陵景观单元土壤有机碳和微生物生物量碳含量特征[J].应用生态学报,2006,17(3):429-433.
[19] 张成霞,南志标.放牧对草地土壤理化特性影响的研究进展[J].草业学报,2010,19(4):204-211.
[20] 盛丽,马玉寿,董全民,等.不同退化程度草地土壤特征的研究[J].青海畜牧兽医杂志,2008,38(2):41-44.
[21] Schnyder H, Locher F, Auerswald K. Nutrient redistribution by grazing cattle drives patterns of topsoil N and P stocks in a low-input pasture ecosystem[J]. Nutrient Cycling in Agroecosystems, 2010,88(2):183-195.
[22] 字洪标,胡雷,阿的鲁骥,等.不同退化演替阶段高寒草甸群落根土比和土壤理化特征分布格局[J].草地学报,2015,23(6):1151-1160.
[23] 罗亚勇,张宇,张静辉,等.不同退化阶段高寒草甸土壤化学计量特征[J].生态学杂志,2012,31(2):254-260.
[24] Mapfumo E, Naeth M, Baron V, et al. Grazing impacts on litter and roots:perennial versus annual grasses[J]. Journal of Range Management, 2002,55(1):16-22.
[25] 郭小伟,韩道瑞,张法伟,等.青藏高原高寒草原碳增贮潜力的初步研究[J].草地学报,2011,19(5):740-745.
[26] 郭小伟,杜岩功,李以康,等.高寒草甸植被层对于草地甲烷通量的影响[J].水土保持研究,2015,22(1):146-152.
[27] Solomon S. IPCC(2007):Climate change the physical science basis[C]//Agu Fall Meeting, 2007.
[28] McIntyre S, Lavorel S, Landsberg J, et al. Disturbance response in vegetation-towards a global perspective on functional traits [J]. Journal of Vegetation Science, 1999,10(5):621-630.
[29] 汪诗平,王艳芬.不同放牧率下糙隐子草种群补偿性生长的研究[J].植物学报,2001,43(4):413-418.
[30] 汪诗平,李永宏,王艳芬,等.不同放牧率对内蒙古冷蒿草原植物多样性的影响[J].植物学报,2001,43(1):89-96.
[31] 杜际增,王根绪,李元寿.近45年长江黄河源区高寒草地退化特征及成因分析[J].草业学报,2015,24(6):5-15.
[32] Holzapfel-Pschorn A, Conrad R, Seiler W. Production, oxidation and emission of methane in rice paddies[J]. Fems Microbiology Letters, 1985,31(6):343-351.
[33] Holzapfel-Pschorn A, Seiler W. Methane emission during a cultivation period from an Italian rice paddy[J]. Journal of Geophysical Research Atmospheres, 1986,91(D11):11803-11814.
[34] Hirota M, Tang Y, Hu Q, et al. Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland [J]. Soil Biology & Biochemistry, 2004,36(5):737-748.
[35] Cao G, Xu X, Long R, et al. Methane emissions by alpine plant communities in the Qinghai-Tibet Plateau[J]. Biology Letters, 2008,4(6):681-684.

Similar References:

Memo

Last Update: 1900-01-01