[Alef K., Nannipieri P. 1995. Enzyme activities. In: Methods in applied Soil Microbiology and Biochemistry (eds.: K. Alef, P. Nannipieri), Academic Press, London, New York, San Francisco.]Search in Google Scholar
[Bardgett E.D. 2002. Causes and consequences of biological diversity in soil. Zoology, 105, 367- 374.]Search in Google Scholar
[Birkás M., Jolánkai M., Gyuricza C., Percze A. 2004. Tillage effects on compaction, earthworms and other soil quality indicators in Hungary. Soil and Tillage Research, 78, 185- 196.]Search in Google Scholar
[Boerner R.E., Brinkman J.A., Smith A. 2005. Seasonal variations in enzyme activity and organic carbon in soil of a burned and unburned hardwood forest. Soil Biology and Biochemistry, 37, 1419-1426.]Search in Google Scholar
[Broma M., Rajfur M., Kłos A., Duczmal K., Wacławek M. 2009. Use of earthworms to assess soil contamination with heavy metals. Chemistry, Didactics, Ecology, Meteorology, 14, 1-2.]Search in Google Scholar
[Chen H.J. 2003. Phosphatase activity and P fractions in soils of an 18-year-old Chinese fir (Cunninghamia lanceolata) plantation. Forest Ecology and Management, 178, 301-310.]Search in Google Scholar
[Clapperton M.J., Baker G.H., Fox C.A. 2007. Earthworms. In: Soil Sampling and Methods of Analysis (eds.: M.R. Carter, E.G. Gregorich), Canadian Society of Soil Science, 427-444.]Search in Google Scholar
[DeForest J.L., Becker J., Burke D.J., Elliott H.L., Smemo K.A. 2012. Soil microbial responses to phosphorus addition and pH manipulation in acidic temperate deciduous forests. Biogeochemistry, 109, 189-202.]Search in Google Scholar
[Fioretto A., Papa S., Curcio E., Sorrentino G., Fuggi A. 2000. Enzyme dynamics on decomposing leaf litter of Cistus incanus and Myrtus communis in a Mediterranean ecosystem. Soil Biology and Biochemistry, 32, 1847-1855.]Search in Google Scholar
[Fisher R.F., Binkley D. 2000. Ecology and management of forest soils. John Wiley and Sons, New York.]Search in Google Scholar
[Floch C., Capowiez Y., Criquet S. 2009. Enzyme activities in apple orchard agroecosystems: How are they affected by management strategy and soil properties. Soil Biology and Biochemistry, 41, 61-68.]Search in Google Scholar
[Franzluebbers A.J., Haney R.L. 2006. Assessing soil quality in organic agriculture. Critical Issue Report. The Organic Center.]Search in Google Scholar
[Gil-Sotres F., Trasar-Cepeda C., Leiros M.C., Seoane S. 2005. Different approaches to evaluating soil quality using biochemical properties. Soil Biology and Biochemistry, 37, 877-887.]Search in Google Scholar
[Januszek K. 1999. The enzymatic activity of selected forest soils of southern Polish in the light of field studies and laboratory (in Polish with English summary). Zeszyty Naukowe AR Kraków, Rozprawy, 250, 5-132.]Search in Google Scholar
[Januszek K., Lasota J., Fiślak A. 2006. The Evaluation of quality of soils of the Carpathian lime tree forest and beech forests on the basis of some chemical and biochemical properties. Acta Scientarium Polonorum, Silvarum Colendarum Ratio et Industria Lignaria, 5 (2), 71-87.]Search in Google Scholar
[Jimenez M.P., De La Horra A.M., Pruzzo L., Palma R.M. 2002. Soil quality: a new index based on microbiological and biochemical parameters. Biology Fertility of Soils, 35, 302-306.]Search in Google Scholar
[Nachtergale L., Ghekiere K., Schrijver A., Muys B., Luyssaert S., Lust N. 2002. Earthworm biomass and species diversity in windthrow sites of a temperate lowland forest. Pedobiologia, 46, 440-451.]Search in Google Scholar
[Nannipieri P., Grego S., Ceccanti B. 1990. Ecological significance of biological activity. In: Soil Biochemistry Vol. 6 (eds.: J.M. Bollag, G. Stotzky), Marcel Dekker Inc., New York, 293-355.]Search in Google Scholar
[Palm J., Schaik N., Schröder B. 2013. Modelling distribution patterns of anecic, epigeic and endogeic earthworms at catchment-scale in agro-ecosystems. Pedobiologia, 56(1), 23-31.]Search in Google Scholar
[Ponge J.F., Gillet S., Dubs F., Fedoroff E., Haese L., Sousa J.P., Lavelle P. 2003. Collembolan communities as bioindicators of land use intensification. Soil Biology and Biochemistry, 35, 813-826.]Search in Google Scholar
[Quilchano C., Maranón T. 2002. Dehydrogenase activity in Mediterranean forest soils. Biology and Fertility of Soils, 35, 102-107.]Search in Google Scholar
[Salazar S., Sánchez L.E., Alvarez J., Valverde A., Galindo P., Igual J.M., Peix A., Santa-Regina I. 2011. Correlation among soil enzyme activities under different forest system management practices. Ecological Engineering, 37, 1123-1131.]Search in Google Scholar
[Tao J., Griffiths B., Zhang S., Chen X., Liu M., Hu F., Li H. 2009. Effects of earthworms on soil enzyme activity in an organic residue amended rice-wheat rotation agro-ecosystem. Applied Soil Ecology, 42, 221-226.]Search in Google Scholar
[Trevors J.T. 1984. Dehydrogenase activity in soil: a comparison between the INT and TTC assay. Soil Biology and Biochemistry, 16, 673-674.]Search in Google Scholar
[Waldrop M.P., Zak D.R. 2006. Response of oxidative enzyme activities to nitrogen deposition affects soil concentrations of dissolved organic carbon. Ecosystems, 9, 921-933.]Search in Google Scholar
[Zantua M., Bremner J.M. 1977. Stability of urease in soil. Soil Biology and Biochemistry, 9, 135-140. ]Search in Google Scholar