Castaldi S., Riondino M., Baronti S., Esposito F.R., Marzaioli R., Rutigliano F.A., Vaccari F.P., Miglietta F. (2011): Impact of biochar application to a Mediterranean wheat crop on soil microbial activity and greenhouse gas fluxes. Chemosphere, 85, 1464-1471  https://doi.org/10.1016/j.chemosphere.2011.08.031DING Wei-Xin, CAI Zu-Cong (2007): Methane Emission from Natural Wetlands in China: Summary of Years 1995–2004 Studies. Pedosphere, 17, 475-486  https://doi.org/10.1016/S1002-0160(07)60057-5Gao Xiaopeng, Tenuta Mario, Nelson Alison, Sparling Brad, Tomasiewicz Dale, Mohr Ramona M., Bizimungu Benoit (2013): Effect of nitrogen fertilizer rate on nitrous oxide emission from irrigated potato on a clay loam soil in Manitoba, Canada. Canadian Journal of Soil Science, 93, 1-11  https://doi.org/10.4141/cjss2012-057Gui Dongwei, Lei Jiaqiang, Zeng Fanjiang, Runge Michael, Mu Guijin, Yang Faxiang, Zhu Juntao (2010): Ordination as a tool to characterize soil particle size distribution, applied to an elevation gradient at the north slope of the Middle Kunlun Mountains. Geoderma, 158, 352-358  https://doi.org/10.1016/j.geoderma.2010.06.002Gul Shamim, Whalen Joann K., Thomas Ben W., Sachdeva Vanita, Deng Hongyuan (2015): Physico-chemical properties and microbial responses in biochar-amended soils: Mechanisms and future directions. Agriculture, Ecosystems & Environment, 206, 46-59  https://doi.org/10.1016/j.agee.2015.03.015 IPCC (2007): Changes in Atmospheric Constituents and in Radiative Forcing. Cambridge, Cambridge University Press.JONES D, WILLETT V (2006): Experimental evaluation of methods to quantify dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) in soil. Soil Biology and Biochemistry, 38, 991-999  https://doi.org/10.1016/j.soilbio.2005.08.012Karhu Kristiina, Mattila Tuomas, Bergström Irina, Regina Kristiina (2011): Biochar addition to agricultural soil increased CH4 uptake and water holding capacity – Results from a short-term pilot field study. Agriculture, Ecosystems & Environment, 140, 309-313  https://doi.org/10.1016/j.agee.2010.12.005 Kettunen R., Saarnio S. (2013): Biochar can restrict N2O emissions and the risk of nitrogen leaching from an agricultural soil during the freeze-thaw period. Agricultural and Food Science, 22: 373–379.Kim D.-G., Vargas R., Bond-Lamberty B., Turetsky M. R. (2012): Effects of soil rewetting and thawing on soil gas fluxes: a review of current literature and suggestions for future research. Biogeosciences, 9, 2459-2483  https://doi.org/10.5194/bg-9-2459-2012Lan Z.M., Chen C.R., Rashti M. Rezaei, Yang H., Zhang D.K. (2017): Stoichiometric ratio of dissolved organic carbon to nitrate regulates nitrous oxide emission from the biochar-amended soils. Science of The Total Environment, 576, 559-571  https://doi.org/10.1016/j.scitotenv.2016.10.119LIANG Wei, SHI Yi, ZHANG Hua, YUE Jin, HUANG Guo-Hong (2007): Greenhouse Gas Emissions from Northeast China Rice Fields in Fallow Season. Pedosphere, 17, 630-638  https://doi.org/10.1016/S1002-0160(07)60075-7Lim Sang-Sun, Choi Woo-Jung (2014): Changes in microbial biomass, CH4 and CO2 emissions, and soil carbon content by fly ash co-applied with organic inputs with contrasting substrate quality under changing water regimes. Soil Biology and Biochemistry, 68, 494-502  https://doi.org/10.1016/j.soilbio.2013.10.027Lin Yun, Munroe Paul, Joseph Stephen, Henderson Rita, Ziolkowski Artur (2012): Water extractable organic carbon in untreated and chemical treated biochars. Chemosphere, 87, 151-157  https://doi.org/10.1016/j.chemosphere.2011.12.007Liu Jieyun, Shen Jianlin, Li Yong, Su Yirong, Ge Tida, Jones Davey L., Wu Jinshui (2014): Effects of biochar amendment on the net greenhouse gas emission and greenhouse gas intensity in a Chinese double rice cropping system. European Journal of Soil Biology, 65, 30-39  https://doi.org/10.1016/j.ejsobi.2014.09.001 Lu R.K. (1999): Analysis Methods of Soil Science and Agricultural Chemistry. Beijing, Agriculture, Science and Technology Press. (In Chinese)Nunan N., Morgan M.A., Herlihy M. (1998): Ultraviolet absorbance (280nm) of compounds released from soil during chloroform fumigation as an estimate of the microbial biomass. Soil Biology and Biochemistry, 30, 1599-1603  https://doi.org/10.1016/S0038-0717(97)00226-5 Paustian K., Six J., Elliott E.T., Hunt H.W. (2000): Management options for reducing CO2 emissions from agricultural soils. Biogeochemistry, 48: 147–163. https://doi.org/10.1023/A:1006271331703Shaaban Muhammad, Peng Qi-an, Lin Shan, Wu Yupeng, Khalid Muhammad Salman, Wu Lei, Mo Yongliang, Hu Ronggui (2016): Dolomite application enhances CH4 uptake in an acidic soil. CATENA, 140, 9-14  https://doi.org/10.1016/j.catena.2016.01.014Smith P., Martino D., Cai Z., Gwary D., Janzen H., Kumar P., McCarl B., Ogle S., O'Mara F., Rice C., Scholes B., Sirotenko O., Howden M., McAllister T., Pan G., Romanenkov V., Schneider U., Towprayoon S., Wattenbach M., Smith J. (2008): Greenhouse gas mitigation in agriculture. Philosophical Transactions of the Royal Society B: Biological Sciences, 363, 789-813  https://doi.org/10.1098/rstb.2007.2184Wang Jiaoyue, Song Changchun, Hou Aixin, Miao Yuqing, Yang Guisheng, Zhang Jing (2014): Effects of freezing–thawing cycle on peatland active organic carbon fractions and enzyme activities in the Da Xing’anling Mountains, Northeast China. Environmental Earth Sciences, 72, 1853-1860  https://doi.org/10.1007/s12665-014-3094-zWolf Benjamin, Zheng Xunhua, Brüggemann Nicolas, Chen Weiwei, Dannenmann Michael, Han Xingguo, Sutton Mark A., Wu Honghui, Yao Zhisheng, Butterbach-Bahl Klaus (2010): Grazing-induced reduction of natural nitrous oxide release from continental steppe. Nature, 464, 881-884  https://doi.org/10.1038/nature08931Wong Vanessa N. L., Dalal Ram C., Greene Richard S. B. (2008): Salinity and sodicity effects on respiration and microbial biomass of soil. Biology and Fertility of Soils, 44, 943-953  https://doi.org/10.1007/s00374-008-0279-1Wu Xing, Brüggemann Nicolas, Butterbach-Bahl Klaus, Fu Bojie, Liu Guohua (2014): Snow cover and soil moisture controls of freeze–thaw-related soil gas fluxes from a typical semi-arid grassland soil: a laboratory experiment. Biology and Fertility of Soils, 50, 295-306  https://doi.org/10.1007/s00374-013-0853-zYao Zhisheng, Zheng Xunhua, Xie Baohua, Mei Baoling, Wang Rui, Butterbach-Bahl Klaus, Zhu Jianguo, Yin Rui (2009): Tillage and crop residue management significantly affects N-trace gas emissions during the non-rice season of a subtropical rice-wheat rotation. Soil Biology and Biochemistry, 41, 2131-2140  https://doi.org/10.1016/j.soilbio.2009.07.025Yeboah S., Zhang R., Cai L., Li L., Xie J., Luo Z., Liu J., Wu J. (2016): Tillage effect on soil organic carbon, microbial biomass carbon and crop yield in spring wheat-field pea rotation  . Plant, Soil and Environment, 62, 279-285  https://doi.org/10.17221/66/2016-PSEYergeau Etienne, Kowalchuk George A. (2008): Responses of Antarctic soil microbial communities and associated functions to temperature and freeze-thaw cycle frequency. Environmental Microbiology, 10, 2223-2235  https://doi.org/10.1111/j.1462-2920.2008.01644.xZhang Afeng, Liu Yuming, Pan Genxing, Hussain Qaiser, Li Lianqing, Zheng Jinwei, Zhang Xuhui (2012): Effect of biochar amendment on maize yield and greenhouse gas emissions from a soil organic carbon poor calcareous loamy soil from Central China Plain. Plant and Soil, 351, 263-275  https://doi.org/10.1007/s11104-011-0957-xZhang Juan, Wang Xiujun, Wang Jiaping (2014): Impact of land use change on profile distributions of soil organic carbon fractions in the Yanqi Basin. CATENA, 115, 79-84  https://doi.org/10.1016/j.catena.2013.11.019