Alef, K. (1995a). Microbial biomass. In K. Alef and P. Nannipieri (Eds.), Methods in Applied Soil Microbiology and Biochemistry. (pp. 375-417.). London, Harcourt Brace and Company Pub.
Alef, K. (1995b). Soil respiration. In K. Alef and P. Nannipieri (Eds.), Methods in Applied Soil Microbiology and Biochemistry. (pp. 214-216). London, Harcourt Brace and Company Pub.
Anderson, T.H. (2003). Microbial eco-physiological indicators to asses soil quality. Agriculture, Ecosystems and Environment, 98(1-3), 285-293.
Beheshti, M., Etesami, H. and Alikhani, H. A. (2018). Effect of different biochars amendment on soil biological indicators in a calcareous soil. Environmental Science and Pollution Research,25(15), 14752-14761.
Brown B.A. and Mitchell, M. J. (1981). Role of the earthworm, Eisenia foetida in affecting survival of Salmonella enteriditisser typhimurium. Pedobiologia, 21(6), 434-438.
Caravaca, F. and Roldán, A. (2003). Effect of Eisenia foetida earthworms on mineralization kinetics, microbial biomass, enzyme activities, respiration and labile C fractions of three soils treated with a composted organic residue. Biology and Fertility of Soils, 38(1), 45-51.
Chapman, H.D. (1965). Cation exchange capacity. In C.A. Black, D.D. Evans, L.J. White, L.E. Ensminger and F.E. Clark (Eds.), Methods of Soil Analysis. (pp. 891-901) American Society of Agronomy, Madison, WI.
Cox, D., Bezdicek, D. and Fauci, M. (2001). Effects of compost, coal ash, and straw amendments on restoring the quality of eroded Palouse soil. Biology and Fertility of Soils, 33(5), 365-372.
Dempster, D.N., Gleeson, D.B., Solaiman, Z.M., Jones, D. L. and Murphy, D.V. (2012). Decreased soil microbial biomass and nitrogen mineralisation with eucalyptus biochar addition to a coarse textured soil. Plant and Soil. 354, 311-324.
Ernst, G., Müller, A., Göhler, H. and Emmerling, C. (2008). C and N turnover of fermented residues from biogas plants in soil in the presence of three different earthworm species (Lumbricus terrestris, Aporrectodea longa, Aporrectodea caliginosa). Soil Biology and Biochemistry, 40(6), 1413-1420.
Gee, G.W., and Bauder, J.W. (1986). Particle- size analysis. In A. Klute (Ed.), Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods. (pp. 383-411). Soil Science Society of America and American Society of Agronomy, Madison, WI, USA,
Groffman, P. M., Bohlen, P.J., Fisk, M. C. and Fahey, T. J. (2004). Exotic earthworm invasion and microbial biomass in temperate forest soils. Ecosystems, 74, 50-54.
Gul, S., Whalen, J. K., Thomas, B. W., Sachdeva, V. and Deng, H. (2015). Physico-chemical properties and microbial responses in biochar-amended soils: mechanisms and future directions. Agriculture, Ecosystems and Environment, 206, 46-59.
He, Y., DeSutter, T., Prunty, L., Hopkins, D., Jia, X. and Wysocki, D.A. (2012). Evaluation of 1: 5 soil to water extract electrical conductivity methods. Geoderma, 185, 12-17.
Jiang, L.L., Han, G.M., Yu, L.A.N., Liu, S.N., Gao, J.P., Xu, Y.A.N.G., Jun, M.E.N.G. and Chen, W.F. (2017). Corn cob biochar increases soil culturable bacterial abundance without enhancing their capacities in utilizing carbon sources in Biolog Eco-plates. Journal of integrative agriculture, 16(3), 713-724.
Khadem, A. and Raiesi, F. (2017). Responses of microbial performance and community to corn biochar in calcareous sandy and clayey soils. Applied Soil Ecology, 114, 16-27.
Lehmann J. and Joseph, S. (2009). Biochar for environmental management- an introduction. In J. Lehmann and S. Joseph (Eds.), Biochar for environmental management: Science and Technology. (pp. 1-11). London. Earth scan.
Lemtiri, A., Colinet, G., Alabi, T., Cluzeau, D., Zirbes, L., Haubruge, É.and Francis, F. (2014). Impacts of earthworms on soil components and dynamics. A review. Biotechnology, Agronomy, Society and Environment, 18(1), 1-13.
Li, X., Fisk, M.C., Fahey, T.J., and Bohlen, P.J. (2002). Inﬂuence of earthworm invasion on soil microbial biomass and activity in a northern hardwood forest. Soil Biology and Biochemistry, 34, 1929-1937.
Li, H., Yutong, W., Tianpei, W. and Hongrui, M. (2015). Effect of biochar on organic matter conservation and metabolic quotient of soil. Environmental Progress and Sustainable Energy, 34(5), 1467-1472.
Liesch, A.M., Weyers, S.L., Gaskin, J.W., and Das, K. C. (2010). Impact of two different biochars on earthworm growth and survival. Annals Environmental Science, 4, 1-9.
Nelson, R.E. (1982). Carbonate and gypsum. In A.L. Page, R.H. Miller and D.R. Keeney (Eds.), Methods of Soil Analysis. (pp. 181–197). American Society of Agronomy, Madison, WI, USA.
Nelson, D.W., and Sommers, L.P. (1996). Total carbon, organic carbon and organic matter. In D. L. Sparks (Ed.). Methods of Soil Analysis, Part 2: Chemical methods (pp. 961-1010). Soil Science Society of America, Madison, WI, USA.
Novak, J.M., Lima, I., Xing, B., Gaskin, J.W., Steiner, C., Das, K., Ahmedna, M., Rehrah, D., Watts, D. W. andBusscher, W.J. (2009). Characterization of designer biochar produced at different temperatures and their effects on a loamy sand. Annals of Environmental Science, 31, 95-206.
Rayment, G.E and Higginson, F.R. (1992), Australian laboratory handbook of soil and water chemical methods. Melbourne: Kata Press.
Rezai, H. (2013). A reviow of research on application of livestock manure in agricultural land of Iran. Journal of Land Management. 1, 55-68. (in Farsi)
Schouten, S., Van Groenigen, J. W., Oenema, O. and Cayuela, M.L. (2012). Bioenergy from cattle manure Implications of anaerobic digestion and subsequent pyrolysis for carbon and nitrogen dynamics in soil. GCB Bioenergy. 4, 751-760.
Song, W. and Guo, M., (2012). Quality variations of poultry litter biochar generated at different pyrolysis temperatures. Journal of analytical and applied pyrolysis, 94: 138-145.
Tammeorg, P., Parviainen, T., Nuutinen, V., Simojoki, A., Vaara, E.and Helenius, J. (2014). Effects of biochar on earthworms in arable soil: avoidance test and field trial in boreal loamy sand. Agriculture, Ecosystems and Environment, 191, 150-157.
Topoliantz, S. and Ponge, J.F. (2003). Burrowing activity of the geophagous earthworm Pontoscolex corethrurus (Oligochaeta: Glossoscolecidae) in the presence of charcoal. Applied Soil Ecology. 23, 267–271.
Vafa, H. J., Raiesi, F. and Hosseinpur, A. (2016). Sewage sludge application strongly modifies earthworm impact on microbial and biochemical attributes in a semi-arid calcareous soil from Iran. Applied Soil Ecology, 100, 45-56.
Weyers, S. L. and Spokas, K. A. (2011). Impact of biochar on earthworm populations: a review. Applied and Environmental Soil Science, 2011, 1-13.
Zhang, B.G., Li, G.T., Shen, T.S., Wang, J.K., and Sun, Z. (2000). Changes in microbial biomass C, N, and P and enzyme activities in soil incubated with the earthworms Metaphire guillelmi or Eisenia fetida. Soil Biology and Biochemistry, 32, 2055-2062.
Zhang, X., Wang, H., He, L., Lu, K., Sarmah, A., Li, J., Bolan, N.S., Pei, J., Huang, H. (2013). Using biochar for remediation of soils contaminated with heavy metals and organic pollutants. Environmental Science and Pollution Research. 20, 8472-8483.