Responses of Soil Respiration to Precipitation Changes in Mongolian Pine Plantation at Horqin Sandy Lands in Northeast China

Abstract:

Soil respiration as a major flux in the global carbon cycle plays an important role in regulating soil carbon pools. Global climatic changes including warming and a changing precipitation pattern could have a profound impact on soil respiration of terrestrial ecosystems, especially in arid and semiarid region where water is limited. We conducted a field experiment to simulate precipitation changes in a Mongolian pine plantation at Horqin sandy lands. The results indicated that, soil respiration was significantly affected by reduced rainfall treatment and water addition treatment in 9 experiment plots. Soil respiration rates in the water addition treatment plots increased about 40.7% to 166.4% and decreased about 34.0% to 70.0% in the reduced rainfall treatment plots. A model of the relationships between soil respiration and moisture with temperature was obtained by an empirical equation. Through operating the model, it was indicated that the highest soil respiration rate occurred at high soil water contents and intermediate soil temperatures in 9 plots. In the combined responses of soil respiration to soil temperature and soil moisture, soil temperature as a single independent variable explained only 29.9% of variance in soil respiration, and soil moisture was 71.3% of variance in soil respiration. It was concluded from our results that precipitation compared with soil temperature dominated more significantly the variability of ecosystem soil respiration in semiarid sandy lands.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 4545-4551
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.4545
• Online since: May 2012
• Authors: Zhi Ping Fan, Xue Kai Sun, Fa Yun Li, Qiong Wang
• Keywords: Climate Change, Mongolian Pine Plantation, Rainfall Manipulation, Soil Respiration

References

[1] J.W. Raich and C.S. Potter: Global Patterns of Carbon Dioxide Emissions from Soils. Global Biogeochemical Cycles Vol. 9 (1995), p.23–26

DOI: 10.1029/94gb02723

[2] R.A. Houghton, E.A. Davidson and G.M. Woodwell: Missing Sinks, Feedbacks, and Understanding the Role of Terrestrial Ecosystems in the Global Carbon Balance. Global Biogeochemical Cycles Vol. 12 (1998), p.25–34

DOI: 10.1029/97gb02729

[3] Cox PM, Betts RA, Jones CD, Spall SA, Totterdell J (2000) Acceleration of Global Warming Due to Carbon-cycle Feedbacks in a Coupled Climate Model. Nature, 408, 184–187.

DOI: 10.1038/35041539

[4] E.T. Sundquist: The Global Carbon Dioxide Budget. Science Vol. 259 (1993), p.934–941

DOI: 10.1126/science.259.5097.934

[5] W. Knorr, I.C. Prentice, J.I. House and E.A. Holland: Long-term Sensitivity of Soil Carbon Turnover to Warming. Nature Vol. 433 (2005), p.298–301

DOI: 10.1038/nature03226

[6] A. Rey, C. Petsikos, P.G. Jarvis and J. Grace: Effect of temperature and moisture on rates of carbon mineralization in a Mediterranean oak forest soil under controlled and field conditions. European Journal of Soil Science Vol. 56 (2005), p.589–599

DOI: 10.1111/j.1365-2389.2004.00699.x

[7] S.L. Niu, M.Y. Wu, Y. Han, J.Y. Xia, L.H. Li and S.Q. Wan: Water-mediated responses of ecosystem carbon fluxes to climatic change in a temperate steppe. New Phytologist Vol. 177 (2008), p.209–219

DOI: 10.1111/j.1469-8137.2007.02237.x

[8] M.S. Lee, K. Nakane, T. Nakatsubo, W.H. Mo and H. Koizumi: Effects of rainfall events on soil CO2 flux in a cool temperate deciduous broad-leaved forest. Ecological Research Vol. 17 (2002), p.401–409

DOI: 10.1046/j.1440-1703.2002.00498.x

[9] E.A. Davidson, I.A. Janssens and Y.Q. Luo: On the Variability of Respiration in Terrestrial Ecosystems: Moving beyond Q10. Global Change Biology Vol. 12 (2006), p.154–164

DOI: 10.1111/j.1365-2486.2005.01065.x

[10] A. Sowerby, B.A. Emmett, A. Tietema and C. Beier: Contrasting Effects of Repeated Summer Drought on Soil Carbon Efflux in Hydric and Mesic Heathland Soils. Global Change Biology Vol. 14 (2008), p.2388–2404

DOI: 10.1111/j.1365-2486.2008.01643.x

[11] P.A. Fay, J.D. Carlisle, A.K. Knapp, J.M. Blair, S.L. Collins: Altering Rainfall Timing and Quantity in a Mesic Grassland Ecosystem: Design and Performance of Rainfall Manipulation Shelters. Ecosystems Vol. 3 (2000), p.308–319

DOI: 10.1007/s100210000028

[12] E.A. Davidson, F.Y. Ishida and D.C. Nepstad: Effects of Experimental Drought on Soil Emissions of Carbon Dioxide, Methane, Nitrous Oxide, and Nitric Oxide in a Moist Tropical Forest. Global Change Biology, Vol. 10 (2004), p.718–730

DOI: 10.1111/j.1365-2486.2004.00762.x

[13] S. Schwinning, B.I Starr and J.R. Ehleringer: Summer and Winter Drought in a Cold Desert Ecosystem (Colorado Plateau) Part I: Effects on Soil Water and Plant Water Uptake. J Arid Environ. Vol. 60 (2005), p.547–566

DOI: 10.1016/j.jaridenv.2004.07.003

[14] Y.L. Hu, D.H. Zeng, Z.P. Fan, G.S. Chen, Q. Zhao and D. Pepper: Changes in Ecosystem Carbon Stocks Following Grassland Afforestation of Semiarid Sandy Soil in the Southeastern Keerqin Sandy Lands, China. Journal of Arid Environments Vol. 72 (2008), p.2193–2200

DOI: 10.1016/j.jaridenv.2008.07.007

[15] D.H. Zeng, Y.L. Hu, S.X. Chang and Z.P. Fan: Land Cover Change Effects on Soil Chemical and Biological Properties after Planting Mongolian Pine (Pinus Sylvestris var. Mongolica) in Sandy Lands in Keerqin, Northeastern China. Plant Soil Vol. 317 (2009), p.121–133

DOI: 10.1007/s11104-008-9793-z

[16] Z.P. Fan, J.G. Gao, D.H. Zeng, X.H. Zhou and X.K. Sun: Three-dimensional (3D) Structure Model and its Parameters for Poplar Shelterbelts. Science China Earth Sciences Vol. 53 (2010), p.1513–1526

DOI: 10.1007/s11430-010-3033-0

[17] D.H. Zeng, L.J. Li, T.J. Fahey, Z.Y. Yu, Z.P. Fan and F.S. Chen: Effects of Nitrogen Addition on Vegetation and Ecosystem Carbon in a Semi-arid Grassland. Biogeochemistry Vol. 98 (2010), p.185–193

DOI: 10.1007/s10533-009-9385-x

[18] D.Z Deng, X.H. Zhang and X.K Sun: Effects of Field Simulation of Precipitation Changes on Soil Nitrogen Availability under a Mongolian Pine Plantation at Horqin Sandy Lands in Northeast China. DOI: 10.1109/ICBBE.2010.5515214. (2010)

DOI: 10.1109/icbbe.2010.5515214

[19] C.T.W. Harper, J.M. Blair, P.A. Fay, A.K. Knapp and J.D. Carlisle: Increased Rainfall Variability and Reduced Rainfall Amount Decreases Soil CO2 Flux in a Grassland Ecosystem. Global Change Biology Vol. 11 (2005), p.322–334

DOI: 10.1111/j.1365-2486.2005.00899.x

[20] W. Borken, K. Savage, E.A. Davidson and S.E. Trumbore: Effects of Experimental Drought on Soil Respiration and Radiocarbon Efflux from a Temperate Forest Soil. Global Change Biology Vol. 12 (2006), p.177–193

DOI: 10.1111/j.1365-2486.2005.001058.x

[21] R.H. Kiefer and R.A. Amey: Concentrations and Controls of Soil Carbon Dioxide in Sandy Soil in the North Carolina Coastal Plain. Catena Vol. 19 (1992), p.539–559

DOI: 10.1016/0341-8162(92)90052-d

[22] D.R. Smart and J. Peñuelas: Short-term CO2 Emissions from Planted Soil Subject to Elevated CO2 and Simulated Precipitation. Appl. Soil Ecol. Vol. 28 (2005), p.247–257

DOI: 10.1016/j.apsoil.2004.07.011

[23] R.L. McCulley, T.W. Boutton and S.R. Archer: Soil Respiration in a Subtropical Savanna Parkland: Response to Water Additions. Soil Science Society of America Vol 71 (2007), p.820–828

DOI: 10.2136/sssaj2006.0303