Mekelle University The School of Graduate Studies Faculty of ...

Knollenberg, W.G., R.W. Merritt, and D.L. Lawson. (1985). Consumption of leaf litterby Lumbricus terrestris (Oligochaeta) on a Michigan woodland floodplain. Am.Midl. Nat. 113(1):1-6.Lal, R. (1998). Soil quality and Sustainability. In: Methods for Assessment of SoilDegradation. (Eds: Lal, R.; Blum, W.H.; Valentins, C.; Stework, B.A.) CRCpress, New York, 17-30.Lavelle, P., Melendez, G., Pashanasi, B., Schaefer, R. (1992). Nitrogen mineralizationand reorganization in casts of the geophagous tropical earthworm Pontoscolexcorethrurus (Glossoscolecidae). Biology and Fertility of Soils, 14 (1), 49-53.Lee, K.E. (1985). Earthworms, their ecology and relationships with soils and land use.Academic Press. New York, NY.Lofs-Holmin, A. (1983). Earthworm population dynamics in different agriculturalrotations. In: Satchell, J.E. (ed.). Earthworm Ecology from Darwin toVermiculture. Chapman and Hall. London. pp. 151-160.Lui, S. X., Xiong, D. Z., Wu, D. B. (1991). Studies on the effect of earthworms on thefertility of red-arid soil. Advances in management and conservation of soil fauna,Proceedings of the 10th International Soil Zoology Colloquium, held atBanglador, India, August 7-13.Mackay, A.D. and E.J. Kladivko. (1985). Earthworms and rate of breakdown of soybeanand maize residues in soil. Soil Biol. Biochem. 17(6):851-857.66