Almas A, Bakken LR and Mulder J, 2004. Changes in tolerance of soil microbial communities in Zn and Cd contaminated soils. Soil Biol Biochem 36: 805-813.
Bââth E, Arnebrandt K and Nordgren A, 1991. Microbial biomass and ATP in smelter-polluted forest humus Bull Environ Contam Toxicol 47: 278–282.
Banerjee M, Mishra S, Chatterjee J, 2004. Scavenging of nickel and chromium toxicity in Aulosirafertilissima by immobilization: Effect on nitrogen assimilating enzymes. Electronic J of Biotech 7: 302−309.
Brookes PC, 1995. The use of microbial parameters in monitoring soil pollution by heavy metals. Biol Fertil Soils 19: 269–279.
Brookes P, Heijnen C, McGrath SP and Vance E, 1986. Soil microbial biomass estimates in soils contaminated with metals. Soil Biol Biochem 18: 383–388.
Cassida LE, Klein JD and Santoro D, 1964. Soil dehydrogenase activity. Soil Science98: 371-374.
Chander K, and Brookes PC, 1991. Effects of heavy-metals from past applications of sewage- sludge on microbial biomass and organic-matter accumulation in a sandy loam and silt loam uk Soil. Soil Biol Biochem 23: 927-32.
Diaz-Ravina M, Calvo D, Anta R and Baath E, 2007. Tolerance (PICT) of the bacterial communities to copper in Vineyards soils from Spain. J Environ Qual 36: 1760-1764.
Dick WA and Tabatabai MA, 1993. Significance and potential uses of soil enzymes, Pp. 95-127, In B. Metting (ed.), Soil Microbial Ecology, Marcel Dekker, New York.
Fontaine S, Marotti A and Abbadie L, 2003. The Priming Effect of Organic Matter: A Question of Microbial Competition. Soil Biology Biochem 35: 837-843.
Fortes Neto P, 2000. Degradation and bioaccumulation of soil index biological. Ph.D. Thesis, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, Brasil, 113.
Ghorbani NR, Salehrastin N and Moeini A, 2002. Heavy metals affect the microbial populations and their activities, 17th WCSS. Thailand, Symposium no. 54: 1-11.
Hu C and Cao Z, 2007. Size and activity of the soil microbial biomass and soil enzyme activity in long-term field experiments. W.J. of Agri. Sci. 3: 63-70.
Isermeyer H, 1952. Einee in fachemethode zurbestimmang der bodenatmung und der carbonate imBoden. Z P FlanzenernaehrBodenkd 56: 26-38.
Killham K, 1994. Soil Ecology, Cambridge University Press, UK.
Liao M, Chen CL, Zeng LS, and CY, 2007. Influence of lead acetate on soil microbial biomass and community structure in two different soils with the growth of Chinese cabbage (Brassicachinensis). Chemosphere 66: 1197–1205.
Lopes EB, 2001. Diversidademetabólicaem solo tratado com biossólidos, M.Sc. Dissertation, Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, Brasil, 65.
Martens R, 1991. Methodenzur quantitative Bestimmung und Charakterisierung dermikrobiellen biomasse in Boden. Eigenverlag des institutes fürBodenbiologie der FAL Braunschweig.
Mohammadi, K, Heidari MT, KarimiNezhad S, Ghamari. Y, 2012. Contrasting soil microbial responses to fertilization and tillage systems in canola rhizosphere. Saudi J. Biol. Sci. 19(3): 377-383.
Page AL, Miller RH and Keeney DR, 1982. Methods of Soil Analysis. 2nd ed. A.A.C., Inc., Soil S.S.S.A., Inc., Madison Publisher, Wisconsin, USA.
Salazar S, Sanchez L, Alvarez J, Valverde A, Galindo P, Igual J, Peix A, 2011. Correlation among soil enzyme activities under different forest system management practices. Ecological Engineering 37: 1123-1131.
Shirzade N, Aliasgharzad N, and Najafi N, 2012. Changes in Microbial Biomass Carbon, Ecophysiological indices, Basal Respiration and Substrate-Induced Respiration of Soil after Incubation with Different Lead Levels. Water and Soil Science- University of Tabriz. 23: 111-124.
Šíša R, 1993. Enzym ová aktivit apůdyja koukazate ljejíbiologi ckéaktivity. Rostl. Výr.,39: 817–825
Sparling GP, and West AW, 1988. A direct extraction method to estimate soil microbial carbon: Calibration in situ using microbial respiration and 14C labeled sells. Soil Biol Biochem 20: 337-343.
Speir TV, Kettles HA, Parshotam A, Searle P.L, Vlaar LNC, 1995. A simple kinetic approach to derive the ecological dose value ED 50, for the assessment of Cr (VI) toxicity to soil biological properties. Soil Biol Biochem 27: 801–811.
Stępniewska Z and Wolińska A, 2004. Enzyme Activity In The Soil Contaminated by Chromium (III, VI) Forms. Modern physical & physicochemical methods & their applications in agro ecological research. Institute of Agro physics PAS, Lublin, 201-207.
Tejada M, Gonzalez AM, Garcıa-Martınez and Parrado J, 2008. Application of a green manure and green manure composted with beet vinasseon soil restoration: Effects on soil properties. Biores Technol 9: 4949-4957.
Viti C, 2006. Response of microbial communities to different doses of chromate in soil microcosms. Applied Soil Ecology 34: 125−139.
Waksman SA, 1992. Microbiological analysis of soil as an index of soil fertility. III. Influence of fertilization upon numbers of microorganisms in soil. Soil Sci 14: 321-346.
Walkley A, and Black A, 1934. An examination of Degtjareff method for determining soil organic matter, and proposed modification of the chromic acid tritation method. Soil Science 37:29-38.
Wardle DA and Ghani A, 1995. A critique of the microbial metabolic quotient (qCO2) as bio indicator of disturbance and ecosystems development. Soil Biol Biochem 27: 1601-1610.
Wright AL, Hons FM and Matocha JE, 2005. Tillage impacts on microbial biomass and soil carbon and nitrogen dynamics of corn and cotton rotations. Applied Soil Ecology 29: 85–92.
Yuan B, and Yue D, 2012. Soil microbial and enzymatic activities across a chronosequenceof chinese pine plantation development on the loess plateau of china. Pedosphere 22: 1-12.
Zhang N, He X, Gao Y, Li Y, Wang H, Ma D, Zhang R, and Yang S, 2010. Pedogenic carbonate and soil dehydrogenase activity in response to soil organic matter in artemisia ordosica community. Pedosphere, 20: 229-235.