Response of Soil Respiration to Soil Warming and Throughfall Exclusion in Warm-temperate Oak Forest in Drought Year

WANG Yi; LIU Yan-chun; LIU Shi-rong; LU Hai-bo

Volume 29 Issue 5

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Response of Soil Respiration to Soil Warming and Throughfall Exclusion in Warm-temperate Oak Forest in Drought Year

1.
Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Beijing 100091, China

Received Date: 2015-04-20
Accepted Date: 2016-01-20

Abstract

[Objective] To explore the response of soil respiration to climate warming and drought and address the feedbacks between climate change and soil carbon flux. [Method] Infrared radiation heater and throughfall exclusion were conducted to simulate warming and drought in Warm-temperate oak (Quercus aliena var. acuteserrata) forest soil. The soil respiration was measured in drought year to analyze the effect of the Control, Warming+Drought, and Warming and Drought treatments on soil respiration in growing season by using LI-8100 system. [Result] The result showed that:the soil respiration of 4 treatments were 1.78 μmol CO2m-2s-1, 1.84 μmol CO2m-2s-1, 2.02 μmol CO2m-2s-1 and 2.01 μmol CO2m-2s-1, the soil temperature and soil moisture respectively explained 68.2%~87.5% and 51.0%~66.6% of the temporal variation of soil respiration. The soil respiration in drought season was lower than that in growing season. The correlation coefficient (soil respiration vs. soil temperature) decreased in warming treatment in drought season, but increased in the relationship of soil respiration and soil moisture. [Conclusion] Soil temperature and moisture are the main factors in regulating soil respiration in drought year,and the limited effect of soil moisture to soil respiration, which is induced by warming treatment, will mitigate the positive feedbacks between soil carbon flux and climate warming in drought season.
- warm-temperate zone,
- Quercus aliena var. acuteserrata,
- soil respiration,
- warming,
- drought

References

[1]	IPCC. Climate Change 2013:The Physical Science Basis[M]. Cambridge University Press, Cambridge, UK., 2013.
[2]	Raich J W, Potter C S, Bhagawati D. Inter annual variability in global soil respiration,1980-1994[J]. Global Change Biology, 2002, 8:800-12.
[3]	Cao M, Woodward F I. Dynamic responses of terrestrial ecosystem carbon cycling to global climate change[J]. Nature, 1998, 393(6682):249-252.
[4]	Piao S, Fang J, Ciais P, et al. The carbon balance of terrestrial ecosystems in China[J]. Nature, 2009, 458(7241):1009-1013.
[5]	Luan J, Liu S, Scott X Chang, et al. Different effects of warming and cooling on the decomposition of soil organic matter in warm-temperate oak forests:a reciprocal translocation experiment[J]. Biogeochemistry, 2014,121:551-564.
[6]	Luan J, Liu S, Wang J, et al. Rhizospheric and heterotrophic respiration of a warm-temperate oak chronosequence in China[J]. Soil Biology and Biochemistry, 2011,43:503-512.
[7]	史作民, 程瑞梅, 刘世荣,等. 河南宝天曼化香林特征及物种多样性[J].山地学报, 2005, 23(3):374-380.
[8]	刘彦春. 暖温带锐齿栎林土壤呼吸及微生物群落结构对土壤增温和降雨减少的响应[D].北京:中国林业科学研究院.2013.
[9]	Van't Hoff J H. Lectures on theoretical and physical chemistry, Part 1. Chemical Dynamics[M]. London:Edward Arnold, 1898.
[10]	Rustad L E, Fernandez I J. Experimental soil warming effects on CO₂ and CH₄ flux from a low elevation spruce-fir forest soil in Maine, USA[J]. Global Change Biology, 1998,4(6):597-605.
[11]	Kimball B A. Theory and performance of an infrared heater for ecosystem warming[J].Global Change Biology, 2005,11(11):2041-2056.
[12]	Aguilos M, Takagi K, Liang N, et al. Soil warming in a cool-temperate mixed forest with peat soil enhanced heterotropic and basal respiration rates but Q10 remained unchanged[J]. Biogeosciences Discuss, 2011,8:6415-6445.
[13]	Harte J, Shaw R. Shifting dominance within a montane vegetation community:results of a climate-warming experiment[J]. Science, 1995,267(5199):876.
[14]	Davidson E A, Nepstad D C, Ishida F Y, et al. Effects of an experimental drought and recovery on soil emissions of carbon dioxide, methane, nitrous oxide, and nitric oxide in a moist tropical forest[J]. Global Change Biology, 2008, 14(11):2582-2590.
[15]	Brando P M, Nepstad D C, Davidson E A, et al. Drought effects on litterfall, wood production and belowground carbon cycling in an Amazon forest:results of a throughfall reduction experiment[J].Philosophical Transactions of the Royal Society B:Biological Sciences, 2008, 363(1498):1839-1848.
[16]	Sotta E D, Veldkamp E, Schwendenmann L, et al. Effects of an induced drought on soil carbon dioxide (CO₂) efflux and soil CO₂ production in an Eastern Amazonian rainforest, Brazil[J].Global Change Biology, 2007, 13(10):2218-2229.
[17]	栾军伟.暖温带锐齿栎林土壤呼吸时空变异及其调控机理[D].北京:中国林业科学研究院.2010.
[18]	Palmroth S, Maier C A, McCarthy H R, et al. Contrasting responses to drought of forest floor CO₂ efflux in a Loblolly pine plantation and a nearby Oak-Hickory forest[J]. Global Change Biology, 2005,11:421=434.
[19]	Bronson D R, Gower S T, Tanner M, et al. Response of soil surface CO₂ flux in a boreal forest to ecosystem warming[J].Global Change Biology, 2008,14(4):856-867.
[20]	Schindlbacher A, Zechmeister-Boltenstern S, Jandl R. Carbon losses due to soil warming:Do autotrophic and heterotrophic soil respiration respond equally?[J].Global Change Biology, 2009,15(4):901-913.
[21]	Wu Z, Dijkstra P, Koch G W, et al. Responses of terrestrial ecosystems to temperature and precipitation change:a meta-analysis of experimental manipulation[J]. Global Change Biology, 2011,17(2):927-942.
[22]	Jassal R S, Andrew Black T, Novak M D, et al. Effect of soil water stress on soil respiration and its temperature sensitivity in an 18-year-old temperate Douglas fir stand[J]. Global Change Biology, 2008,14:1305-1318.
[23]	Wang B, Zha T, Jia X, et al. Soil moisture modifies the response of soil respiration to temperature in a desert shrub ecosystem[J]. Biogeosciences, 2014,11:259-268.

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Response of Soil Respiration to Soil Warming and Throughfall Exclusion in Warm-temperate Oak Forest in Drought Year

1. Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Beijing 100091, China

Received Date: 2015-04-20

Accepted Date: 2016-01-20

Abstract: [Objective] To explore the response of soil respiration to climate warming and drought and address the feedbacks between climate change and soil carbon flux. [Method] Infrared radiation heater and throughfall exclusion were conducted to simulate warming and drought in Warm-temperate oak (Quercus aliena var. acuteserrata) forest soil. The soil respiration was measured in drought year to analyze the effect of the Control, Warming+Drought, and Warming and Drought treatments on soil respiration in growing season by using LI-8100 system. [Result] The result showed that:the soil respiration of 4 treatments were 1.78 μmol CO2m-2s-1, 1.84 μmol CO2m-2s-1, 2.02 μmol CO2m-2s-1 and 2.01 μmol CO2m-2s-1, the soil temperature and soil moisture respectively explained 68.2%~87.5% and 51.0%~66.6% of the temporal variation of soil respiration. The soil respiration in drought season was lower than that in growing season. The correlation coefficient (soil respiration vs. soil temperature) decreased in warming treatment in drought season, but increased in the relationship of soil respiration and soil moisture. [Conclusion] Soil temperature and moisture are the main factors in regulating soil respiration in drought year,and the limited effect of soil moisture to soil respiration, which is induced by warming treatment, will mitigate the positive feedbacks between soil carbon flux and climate warming in drought season.

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Reference (23)

[1]	IPCC. Climate Change 2013:The Physical Science Basis[M]. Cambridge University Press, Cambridge, UK., 2013.
[2]	Raich J W, Potter C S, Bhagawati D. Inter annual variability in global soil respiration,1980-1994[J]. Global Change Biology, 2002, 8:800-12.
[3]	Cao M, Woodward F I. Dynamic responses of terrestrial ecosystem carbon cycling to global climate change[J]. Nature, 1998, 393(6682):249-252.
[4]	Piao S, Fang J, Ciais P, et al. The carbon balance of terrestrial ecosystems in China[J]. Nature, 2009, 458(7241):1009-1013.
[5]	Luan J, Liu S, Scott X Chang, et al. Different effects of warming and cooling on the decomposition of soil organic matter in warm-temperate oak forests:a reciprocal translocation experiment[J]. Biogeochemistry, 2014,121:551-564.
[6]	Luan J, Liu S, Wang J, et al. Rhizospheric and heterotrophic respiration of a warm-temperate oak chronosequence in China[J]. Soil Biology and Biochemistry, 2011,43:503-512.
[7]	史作民, 程瑞梅, 刘世荣,等. 河南宝天曼化香林特征及物种多样性[J].山地学报, 2005, 23(3):374-380.
[8]	刘彦春. 暖温带锐齿栎林土壤呼吸及微生物群落结构对土壤增温和降雨减少的响应[D].北京:中国林业科学研究院.2013.
[9]	Van't Hoff J H. Lectures on theoretical and physical chemistry, Part 1. Chemical Dynamics[M]. London:Edward Arnold, 1898.
[10]	Rustad L E, Fernandez I J. Experimental soil warming effects on CO₂ and CH₄ flux from a low elevation spruce-fir forest soil in Maine, USA[J]. Global Change Biology, 1998,4(6):597-605.
[11]	Kimball B A. Theory and performance of an infrared heater for ecosystem warming[J].Global Change Biology, 2005,11(11):2041-2056.
[12]	Aguilos M, Takagi K, Liang N, et al. Soil warming in a cool-temperate mixed forest with peat soil enhanced heterotropic and basal respiration rates but Q10 remained unchanged[J]. Biogeosciences Discuss, 2011,8:6415-6445.
[13]	Harte J, Shaw R. Shifting dominance within a montane vegetation community:results of a climate-warming experiment[J]. Science, 1995,267(5199):876.
[14]	Davidson E A, Nepstad D C, Ishida F Y, et al. Effects of an experimental drought and recovery on soil emissions of carbon dioxide, methane, nitrous oxide, and nitric oxide in a moist tropical forest[J]. Global Change Biology, 2008, 14(11):2582-2590.
[15]	Brando P M, Nepstad D C, Davidson E A, et al. Drought effects on litterfall, wood production and belowground carbon cycling in an Amazon forest:results of a throughfall reduction experiment[J].Philosophical Transactions of the Royal Society B:Biological Sciences, 2008, 363(1498):1839-1848.
[16]	Sotta E D, Veldkamp E, Schwendenmann L, et al. Effects of an induced drought on soil carbon dioxide (CO₂) efflux and soil CO₂ production in an Eastern Amazonian rainforest, Brazil[J].Global Change Biology, 2007, 13(10):2218-2229.
[17]	栾军伟.暖温带锐齿栎林土壤呼吸时空变异及其调控机理[D].北京:中国林业科学研究院.2010.
[18]	Palmroth S, Maier C A, McCarthy H R, et al. Contrasting responses to drought of forest floor CO₂ efflux in a Loblolly pine plantation and a nearby Oak-Hickory forest[J]. Global Change Biology, 2005,11:421=434.
[19]	Bronson D R, Gower S T, Tanner M, et al. Response of soil surface CO₂ flux in a boreal forest to ecosystem warming[J].Global Change Biology, 2008,14(4):856-867.
[20]	Schindlbacher A, Zechmeister-Boltenstern S, Jandl R. Carbon losses due to soil warming:Do autotrophic and heterotrophic soil respiration respond equally?[J].Global Change Biology, 2009,15(4):901-913.
[21]	Wu Z, Dijkstra P, Koch G W, et al. Responses of terrestrial ecosystems to temperature and precipitation change:a meta-analysis of experimental manipulation[J]. Global Change Biology, 2011,17(2):927-942.
[22]	Jassal R S, Andrew Black T, Novak M D, et al. Effect of soil water stress on soil respiration and its temperature sensitivity in an 18-year-old temperate Douglas fir stand[J]. Global Change Biology, 2008,14:1305-1318.
[23]	Wang B, Zha T, Jia X, et al. Soil moisture modifies the response of soil respiration to temperature in a desert shrub ecosystem[J]. Biogeosciences, 2014,11:259-268.

Response of Soil Respiration to Soil Warming and Throughfall Exclusion in Warm-temperate Oak Forest in Drought Year

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Response of Soil Respiration to Soil Warming and Throughfall Exclusion in Warm-temperate Oak Forest in Drought Year

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