Translocation of soils to stimulate climate change: CO2 emissions and modifications to soil organic matter

作者: M. Rey , E. Guntiñas , F. Gil-Sotres , M. C. LeirÓs , C. Trasar-Cepeda

DOI: 10.1111/J.1365-2389.2007.00912.X

关键词: Soil organic matterCarbonSoil carbonEnvironmental chemistrySoil waterClimate changeNitrogenEnvironmental scienceSoil scienceWater contentOrganic matter

摘要: Summary The effect of climate change on CO2 emissions was studied undisturbed soil monoliths (40-cm diameter, 25-cm high), which were translocated to warmer zones than their place origin. Thirty-two months after the translocation, a climatic factor deduced from moisture content and effective mean temperature (temperatures in excess 5°C) revealed that translocation increased potential enhance biological processes by between 73% 26% compared with what would support its At end study, transported soils had lost large proportion both total carbon nitrogen (between 20 45%). During experiment, soils, measured under field conditions, quite variable, but usually greater situ. The variation labile C throughout experiment calculated first-order kinetic equation for organic matter decay. relative emissions, expressed terms fraction clearly those underwent most intensive change, indicates variations over time are basically function size pool.

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