Soil respiration in response to a short-term nitrogen addition in an alpine steppe of Northern Tibet

• Autorzy: Sun J. , Cheng G. , Fan J.
• Języki publikacji: EN

Abstrakty

EN

Northern Tibet has a vital role in global ecological security. This study determined the effect of environmental factors on the soil respiration of an alpine steppe. Short-term nitrogen addition (2 g N m⁻² yr⁻¹) was performed in an alpine steppe in Northern Tibet in June, 2011. Soil respiration was observed during the growing season of 2011 using LI-8100. The results were as follows. First, soil respiration had clear seasonal patterns, and significant differences existed between the control (CK) and nitrogen addition (ND) treatments (P = 0.004). Second, soil respiration was more sensitive to soil temperature (R² = 0.988, ND; R² = 0.05, CK) than soil moisture (R² = 0.0003, ND; R² = 0.038, CK), and the relationship between soil temperature and soil respiration in ND treatment was more significant than that in CK. Third, the relationships between soil chemical properties and root biomass in CK were greater than that in ND plots, especially the relationship of root biomass with the available nitrogen and nitrate nitrogen. These results indicated that differences among geographical conditions resulted in different phenomena of gas emissions, immature soil, and extremely short plant growing time, which may all be remarkably influenced in an alpine steppe.

Słowa kluczowe

EN

Alpine Steppe; Tibet; ecosystem; soil respiration; environmental factor; nitrogen addition; soil temperature; soil moisture

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2013
• Tom: 61
• Numer: 4
• Opis fizyczny: p.655-663,fig.,ref.

Twórcy

autor

Sun J.

• Synthesis Research Centre of Chinese Ecosystem Research Network, Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

autor

Cheng G.

• Institute of Mountain Hazard and Environment, Chinese Academy of Sciences, Chengdu 610041, China

autor

Fan J.

• Institute of Mountain Hazard and Environment, Chinese Academy of Sciences, Chengdu 610041, China

Bibliografia

• Bao S.D. 2000 – Soil Chemical Analysis of Agriculture – Chinese Agriculture Press. Beijing, pp. 25–95.
• Burton A.J., Pregitzer K.S., Crawford J.N., Zogg G.P., Zak D.R. 2004 – Simulated chronic NO₃-deposition reduces soil respiration in northern hardwood forests – Global Change Biol. 10: 1080–1091.
• Elvir J.A., Wiersma G.B., White A.S., Fernandez I.J. 2003 – Effects of chronic ammonium sulfate treatment on basal area increment in red spruce and sugar maple at the Bear Brook Watershed in Maine – Can. J. Forest Res. 33: 862–869.
• Gao Q.Z., Li Y., Wan Y., Qin X., Jiangcun W.Z., Liu Y. 2009 – Dynamics of alpine grassland NPP and its response to climate change in Northern Tibet – Climatic Change, 97: 515–528.
• Gaumont-Guay D., Black A., Griffis T.J., Barr A.G., Jassal R.S., Nesic Z. 2006 – Interpreting the dependence of soil respiration on soil temperature and water content in a boreal aspen stand – Agr. Forest Meteorol. 140: 220–235.
• IPCC 2001 – Third assessment report of working group I. United Nations Environment Programme – Geneva, Switzerland.
• Jia J.Y., Zhang Y., Cai X.B., Liu X.J. 2009 – A dynamic changes of wet deposition of nitrogen in southeast Tibet: taking Linzhi experiment station as an example – Acta Ecologica Sinica. 29: 1907–1913 (in Chinese).
• Jia B., Zhou G., Wang Y., Wang F., Wang X. 2006 – Effects of temperature and soil water-content on soil respiration of grazed and ungrazed Leymus chinensis steppes, Inner Mongolia – J. Arid Environ. 67: 60–76.
• Jiang C.M., Yu G.R., Fang H.J., Cao G.M., Li Y.N. 2010 – Short-term effect of increasing nitrogen deposition on CO₂, CH₄ and N₂O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China – Atmos. Environ. 44: 2920–2926.
• Kaur K., Jalota R.K., Midmore D.J. 2010 – Soil respiration rate and its sensitivity to temperature in pasture systems of dry-tropics – Acta Agr. Scand. B-S.P. 60: 407–419.
• Keeler B.L., Hobbie S.E., Kellogg L.E. 2008 – Effects of Long-Term Nitrogen Addition on Microbial Enzyme Activity in Eight Forested and Grassland Sites: Implications for Litter and Soil Organic Matter Decomposition – Ecosystems. doi: 10.1007/s10021-008-9199-z.
• Lü C.Q., Tian H.Q. 2007 – Spatial and temporal patterns of nitrogen deposition in China: Synthesis of observational data – J. Geophys. Res. 112:D22S05, doi: 10.1029/2006JD007990.
• Lu X.Y., Fan J.H., Yan Y., Wang X.D. 2011 – Soil water soluble organic carbon under three alpine grassland types in Northern Tibet, China – Afr. J. Agr. Res. 6: 2066–2071.
• Michelsen A., Jonasson S., Sleep D., Havstrom M., Callaghan T.V. 1996 – Shoot biomass, delta C-13, nitrogen and chlorophyll responses of two arctic dwarf shrubs to in situ shading, nutrient application and warming simulating climatic change – Oecologia, 105:1–12.
• Pregitzer K.S., Burton A.J., Zak D.R., Talhelm A.H. 2008 – Simulated chronic nitrogen deposition increases carbon storage in Northern Temperate forests – Global Change Biol. 14: 142–153, doi: 10.1111/j.1365-2486.2007.01465.x.
• Raich J.W., Potter C.S. 1995 – Global patterns of carbon dioxide emissions from soils – Global Biogeochem. Cy. 9: 23 –36.
• Ramirez K.S., Craine J.M., Fierer N. 2010 – Nitrogen fertilization inhibits soil microbial respiration regardless of the form of nitrogen applied – Soil Biol. Biochem. 42: 2336–2338.
• Reich P.B., Knops J., Tilman D., Craine J., Ellsworth D., Tjoelker M., Lee T., Wedin D., Naeem S., Bahauddin D., Hendrey G., Jose S., Wrage K., Goth J., Bengston W. 2001 – Plant diversity enhances ecosystem responses to elevated CO₂ and nitrogen deposition – Nature, 410: 809–812.
• Saiz G., Green C., Butterbach-Bahl K., Kiese R., Avitabile V., Farrell E.P. 2006 – Seasonal and spatial variability of soil respiration in four Sitka spruce stands – Plant Soil, 287: 161–176. doi10.1007/s11104-006-9052-0.
• Song C.C., Zhang J.B. 2009 – Effects of soil moisture, temperature, and nitrogen fertilization on soil respiration and nitrous oxide emission during maize growth period in northeast China – Acta Agr. Scand. B - S. P. 59: 97–106.
• Stinson K.A., Campbell S.A., Powell J.R., Wolfe B.E., Callaway R.M., Thelen G.C., Hallett S.G., Prati D., Klironomos J.N. 2006 – Invasive plant suppresses the growth of native tree seedlings by disrupting belowground mutualisms – PLoS Biol. 4: 0–140. doi: 10.1371/journal.pbio.0040140.
• Tranvik L.J., Downing J.A., Cotner J.B., Loiselle S.A., Striegl R.G., Ballatore T.J., Dillon P., Finlay K., Fortino K., Knoll L.B., Kortelainen P.L., Kutser T., Larsen, S., Laurion I., Leech D.M., McCallister S.L., McKnight D.M., Melack J.M., Overholt E., Porter J.A., Prairie Y., Renwick W.H., Roland F., Sherman B.S., Schindler D.W., Sobek S., Tremblay A., Vanni M.J., Verschoor A.M. 2009 – Lakes and reservoirs as regulators of carbon cycling and climate – Limnol. Oceanogr. 54: 2298–2314.
• Ullah S., Zinati G.M. 2006 – Denitrification and nitrous oxide emissions from riparian forest soils exposed to prolonged nitrogen runoff – Biogeochemistry, 81: 253–267.
• Wang G.X., Cheng G.D. 2000 – Eco-environmental changes and causative analysis in the source regions of the Yangtze and Yellow Rivers, China – The Environmentalist, 20: 221–232.
• Wang W., Peng S.S., Fang J.Y. 2010 – Root respiration and its relation to nutrient contents in soil and root and EVI among 8 ecosystems, northern China – Plant Soil. 333: 391–401.
• Wu J.S., Lin Q.M., Huang Q.Y. 2006 – Determination of soil biomass and its applications – China Meteorological Press, Beijing, pp. 60–67.
• Yu H.Y., Luedeling E., Xu J.C. 2010 – Winter and spring warming result in delayed spring phenology on the Tibetan Plateau – P. Natl. A. Sci. India. A. 107: 22151–22156.
• Zhang J.P., Liu S.Z., Zhou L., Fang Y.P. 1998 – Soil degradation of main grassland in Naqu area of Tibet – J. Soil Erosion and Soil and Water Conserv. 4: 6–11 (in Chinese).
• Zhang L.H., Chen Y.N., Li W.H., Zhao R.F. 2009 – Abiotic regulators of soil respiration in desert ecosystems – Environ Geol. 57: 1855–1864.
• Zhang L.H., Chen Y.N., Zhao R.F., Li W.H. 2010 – Significance of temperature and soil water content on soil respiration in three desert ecosystems in Northwest China – J. Arid Environ. 74: 1200–1211.
• Zhang R.Y., Gou X., Bai Y., Zhao J., Chen L.Y., Song X.Y., Wang G. 2011 – Biomass fraction of graminoids and forbs in N-limited alpine grassland: N:P stoichiometry – Pol. J. Ecol. 59: 105–114.