NS  Vol.6 No.15 , October 2014
Assessment of the Regime of Functioning Agroecosystems Depending on the Climate and Technogenic Pollution of the Soils
Abstract: Some results of monitoring (for the period from 1992 to 2005) related to transformations of carbon in agroecosystems of Baikal Siberia (Russia) characterized by unpolluted grey forest soils as well as the soils technogenically polluted with heavy metals are discussed with use the unique approach to integrated assessment of the agroecosystem’s functioning regime. The peculiarities of accumulation of carbon in soil microbial biomass and CO2 emission during the years differing in climate conditions are demonstrated. Analysis of formation of net-mineralized and (re)immobilized carbon is conducted, their ratio being used for the purpose of assessment of the level of influence upon the agroecosystem. The agroecosystems having technogenically polluted soils are characterized by processes of the soil microbial biomass reduction and by an obvious increase of CO2 emission into the atmosphere. Negative changes, which are bound up with carbon transformation, are intensified under unfavorable climate conditions. Intensification of processes of carbon net mineralization and, vice versa, lowering the intensity of processes related to carbon (re)immobilization (especially under the effect of soil pollution and climate changes) provoke instability of the agroecosystem and cause formation of a new regime of its functioning.
Cite this paper: Pomazkina, L. , Sokolova, L. and Semenova, Y. (2014) Assessment of the Regime of Functioning Agroecosystems Depending on the Climate and Technogenic Pollution of the Soils. Natural Science, 6, 1219-1227. doi: 10.4236/ns.2014.615109.

[1]   Gu, W.B. (2003) Climate Protection Strategies for the 21st Century: Kyoto and Beyond. WBGU—German Advisory Council on GLobal Change, Berlin.

[2]   IPCC (2007) Climate Change 2007: The Scientific Report, Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. IPCC, Geneva.

[3]   IPCC (2013) Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge.

[4]   Hare, W., Cramer, W., Schaeffer, M., Battaglini, A. and Jaeger, C. (2011) Climate Hotspots: Key Vulnerable Regions, Climate Change and Limits to Warming. Regional Environmental Change, 11, 1-13.

[5]   Lal, R. (2004) Agricultural Activities and the Global Carbon Cycle. Nutrient Cycling in Agroecosystems, 70, 103-116.

[6]   (2011) Sustaining Soil Productivity in Response to Global Climate Change: Science, Policy, and Ethics. In: Sauer, T., Norman, J. and Sivakumar, M., Eds., Wiley-Blackwell, Hoboken.

[7]   Pomazkina, L.V., Kotova, L.G., Lubnina, E.V., Zorina, S.Yu. and Lavrent’yeva, A.S. (2004) The Resistance of Agroecosystems to Fluoride Pollution. IG SD RAS, Irkutsk.

[8]   Kudeyarov, V.N. and Kurganova, I.N. (2005) Respiration of Soils in Russia: Database Analysis, Long-Term Monitoring, and General Estimates. European Journal of Soil Science, 38, 993-998.

[9]   Kudeyarov, V.N., Demkin, V.A., Gilichinsky, D.A., Gorjachkin, S.V. and Rozhkov, V.A. (2009) Global Changes of a Climate and a Soil Cover. European Journal of Soil Science, 42, 953-966.

[10]   (2007) Agroecosystems in a Changing Climate. In: Newton, P., Edwards, C.R. and Niklaus, G., Eds., CRC Taylor & Francis.

[11]   Bindi, M. and Olesen, J. (2011) The Responses of Agriculture in Europe to Climate Change. Regional Environmental Change, 11, 151-158.

[12]   (2008) Assessment Report on Climate Change and Its Consequences in Russian Federation. General Summary. Moscow.

[13]   Pomazkina, L.V., Kotova, L.G., Zorina, S.Yu., Rybakova, A.V. and Tikhonov, A.Yu. (2008) Carbon Dioxide Emission as Affected by the Properties of Arable Soils Polluted with Fluorides. Eurasian Soil Science, 41, 629-637.

[14]   Pomazkina, L.V. (2004) A New Integral Approach to Evaluation of Functioning Agroecosystems and Ecological Standardization of Anthropogenic Impact, including Technogenic Soil Pollution. Achievements of Modern Biology (in Russian), 124, 66-76.

[15]   Pomazkina, L.V. (2009) Integral Assessment of Functioning and Resistance Agroecosystems on Soils Polluted by Aluminum Production Fluorides in the Baikal Siberia. Engineering Ecology (in Russian), 6, 27-42.

[16]   Pomazkina, L.V., Kotova, L.G., Zorina, S.Yu. and Rybakova, A.V. (2008) Comparative Assessment of Agroecosystems Developed on Different Types of Soils Contaminated by Fluorides from Aluminum Smelters in the Cis-Baikal Region. Eurasian Soil Science, 41, 202-209.

[17]   Blagodatsky, S.A., Blagodatskaya, E.V., Gorbenko, A.Yu. and Panikov, N.S. (1987) Rehydration Method of Microbe Biomass Determination in Soil. Pochvovedenie (in Russian), 4, 64-71.

[18]   Buyanovsky, G.A. and Vagner, G.H. (1987) Carbon Transfer in a Winter Wheat (Triticum aestivum L.) Ecosystem. Biology and Fertility of Soils, 5, 76-82.

[19]   Pomazkina, L.V., Lubnina, E.V., Zorina, S.Yu. and Kotova, L.G. (1996) Dynamics of CO2 Evolution in Grey Forest Soil of the Baikal Forest-Steppe. Biology and Fertility of Soils, 23, 327-331.

[20]   Pomazkina, L.V., Lubnina, E.V., Zorina, S.Yu., Kotova, L.G. and Khortolomei, I.V. (1996) Dynamics of CO2 Emission from the Gray Forest Soil in the Forest-Steppe of the Cisbaikal Region. Eurasian Soil Science, 29, 1355-1359.

[21]   WMO Greenhouse Gas Bulletin (2008)

[22]   Lengeler, J., Drews, G. and Schlegel, H. (1999) Biology of the Prokaryotes. Wiley-Blackwell, Hoboken.

[23]   Аnderson, T.H. and Domsсh, K.H. (1990) Application of Eco-Physiological Quotient (qCO2, qD) on Microbial Biomass from Soils of Different Cropping Histories. Soil Biology and Biochemistry, 22, 251-255.

[24]   Blagodatskaya, E.V. and Anderson, T.H. (1999) Adaptive Responses of Soil Microbial Communities under Experimental Acid Stress in Controlled Laboratory Studies. Applied Soil Ecology, 11, 207-216.