Alvarez, R., R.A. Diaz, N. Barbero, O.J. Santanatoglia, and L. Blotta. 1995. Soil organic carbon, microbial biomass and CO2-C production from three tillage systems. Soil Tillage Res., 33:17-28.

Ambassa-Kiki, R. and D. Nill. 1999. Effects of different land management techniques on selected topsoil properties of a forest Ferralsol. Soil Tillage Res., 52:259-264.

Brakensiek, D.L., H.B. Osborn, and W.J. Rawls, Coords. 1979. Field Manual for Research in Agricultural Hydrology. Agriculture Handbook, vol. 224. U.S. Department of Agriculture, Washington, DC.

Buyanovsky, G.A. and G.H. Wagner. 1998. Changing role of cultivated land in the global carbon cycle. Biol. Fertil. Soils, 27:242-245.

Campbell, C.A., B.G. McConkey, R.P. Zentner, R.P. Dyck, F. Selles, and D. Curtin. 1995. Carbon sequestration in a brown Chernozem as affected by tillage and rotation. Can. J. Soil Sci., 75:449-458.

Campbell, C.A., B.G. McConkey, R.P. Zentner, F. Selles, D. Curtin. 1996. Long-term effects of tillage and crop rotations on soil organic C and total N in a clay soil in southwestern Saskatchewan. Can. J. Soil Sci., 76:395-401.

Campbell, C.A. and B.G. Zentner. 1993. Soil organic matter as influenced by crop rotations and fertilization. Soil Sci. Soc. Am. J., 56:1034-1040.

David, M.B., G.F. Vance, and J.S. Kahl. 1992. Chemistry of dissolved organic carbon and organic acids in two streams draining forested watersheds. Water Resources Res., 28:389-396.

Davidson, E.A. and I.L. Ackerman. 1993. Changes in soil carbon inventories following cultivation of previously untilled soils. Biogeochemistry, 20:161-193.

Doran, J.W. 1980. Soil microbial and biochemical changes associated with reduced tillage. Soil Sci. Soc. Am. J., 44:765-771.

Doran, J.W. 1987. Microbial biomass and mineralizable nitrogen distributions in no tillage and plowed fields. Biol. Fertil. Soils, 5:68-75.

Edwards, W.M. and L.B. Owens. 1991. Large storm effects on total soil erosion. J. Soil Water Conserv., 46:75-78.

Edwards, W.M., G.B. Triplett, D.M. Van Doren, L.B. Owens, C.E. Redmond, and W.A. Dick. 1993. Tillage studies with a corn-soybean rotation: hydrology and sediment loss. Soil Sci. Soc. Am. J., 57:1051-1055.

Eghball, B., L.N. Mielke, D.L. McCallister, and J.W. Doran. 1994. Distribution of organic and inorganic nitrogen in a soil under various tillage and crop sequences. J. Soil Water Conserv., 49:201-205.

Gregorich, E.G., K.J. Greer, D.W. Anderson, and B.C. Lang. 1998. Carbon distribution and losses: erosion and deposition effects. Soil Tillage Res., 47:291-302.

Halvorson, A.D., B.J. Wienhhold, and A.L. Black. 2002. Tillage, nitrogen, and cropping system effects on soil carbon sequestration. Soil Sci. Soc. Am. J., 66:906-912.

Harrold, L.L., and F.R. Dreibelbis. 1958. Evaluation of Agricultural Hydrology by Monolith Lysimeters 1944-55. U.S. Department of Agriculture Technical Bulletin 1179. U.S. Government Printing Office, Washington, DC.

Hunt, P.G., D.L. Karlen, T.A. Matheny, and V.L. Quisenberry. 1996. Changes in carbon content of Norfolk loamy sand after 14 years of conservation or conventional tillage. J. Soil Water Conserv., 51:255-258.

Hussain, I., K.R. Olson, and S.A. Ebelhar. 1999. Long-term tillage effects on soil chemical properties and organic matter fractions. Soil Sci. Soc. Am. J., 63:1335-1341.

Ismail, I., R.L. Blevins, and W.W. Frye. 1994. Long-term no-tillage effects on soil properties and continuous corn yields. Soil Sci. Soc. Am. J., 58:193-198.

Jardine, P.M., G.V. Wilson, J.F. McCarthy, R.J. Luxmoore, D.L. Taylor, and L.W. Zelazny. 1990. Hydrogeochemical processes controlling the transport of dissolved organic carbon through a forested hillslope. J. Contaminant Hydrol., 6:3-19.

Kaihura, F.B.S., I.K. Kullaya, M. Kilasara, J.B. Aune, B.R. Singh, and R. Lal. 1999. Soil quality effects of accelerated erosion and management systems in three eco-regions of Tanzania. Soil Tillage Res., 53:59-70.

Karlen, D.L., N.C. Wollenhaupt, D.C. Erbach, E.C. Berry, J.B. Swan, N.S. Eash, and J.L. Jordahl. 1994. Long-term tillage effects on soil quality. Soil Tillage Res., 32:313-327.

Kelley, G.E., W.M. Edwards, L.L. Harrold, and J.L. McGuinness. 1975. Soils of the North Appalachian Experimental Watershed. U.S. Department of Agriculture Miscellaneous Publication 1296. U.S. Government Printing Office, Washington, DC.

Likens, G.E., F.H. Bormann, R.S. Pierce, J.S. Eaton, and N.M. Johnson. 1977. Bio geochemistry of a Forested Ecosystem. Springer-Verlag. New York.

Massey, H.F. and M.L. Jackson. 1952. Selective erosion of soil fertility constituents. Soil Sci. Soc. Proc., 16:353-356.

McCallister, D.L. and W.L. Chen. 2000. Organic carbon quantity and forms as influenced by tillage and cropping sequence. Commn. Soil Sci. Plant, Anal... 31:465-479.

McCarty, G.W. and J.J. Meisinger. 1997. Effects of N fertilizer treatments on biologically active N pools in soils under plow and no tillage. Biol. Fertil. Soils. 24:406-412.

McCarty, G.W., J.J. Meisinger, and J.M.M. Jennsikens. 1995. Relationships between total-N, biomass-N, and active-N in soil under different tillage and N fertilizer treatments. Soil Biol. Biochem.. 27:1245-1250.

Nyborg, M., E.D. Solberg, S.S. Malhi, and R.C. Izaurralde. 1995. Fertilizer N, crop residue, and tillage alter soil C and N content in a decade. In R. Lal, et al., Eds. Advances in Soil Science: Soil Management and Greenhouse Effect, Lewis Publishers/CRC Press, Boca Raton, FL, pp.93-100.

Owens, L.B., W.M. Edwards, and R.W. Van Keuren. 1991. Baseflow and stormflow transport of nutrients from mixed agricultural watersheds. J. Environ. Qual., 20:407-414.

Owens, L.B., R.W. Malone, D.L. Hothem, G.C. Starr, and R. Lal. 2002a. Sediment carbon concentration and transport from small watersheds under various conservation tillage practices. Soil Tillage Res., 67:65-73.

Owens, L.B., G.C. Starr, and D.R. Lightell. 2002b. Total organic carbon losses in subsurface flow under two management practices. J. Soil Water Conserv., 57:74-81.

Owens, L.B., R.W. Van Keuren, and W.M. Edwards. 1998. Budgets of non-nitrogen nutrients in a high fertility pasture system. Agric. Ecosvst. Environ., 70:7-18.

Reicosky, D.C., W.D. Kemper, G.W. Langdale, C.L. Douglas Jr., and P.E. Rasmussen. 1995. Soil organic matter changes resulting from tillage and biomass production. J. Soil Water Conserv.. 50:253-261.

SAS Institute. 1985. SAS/STAT Guide for Personal Computers, 6th ed. SAS Institute, Cary, NC.

Shipitalo, M.J. and W.M. Edwards. 1998. Runoff and erosion control with conservation tillage and reduced-input practices on cropped watersheds. Soil Tillage Res., 46:1-12.

Wan, Y. and S.A. El-Swaify. 1997. Flow-induced transport and enrichment of erosional sediment from a well-aggregated and uniformly textured Oxisol. Geoderma, 75:251-265.

Zobisch, M.A., C. Richter, B. Heiligtag, and R. Schlott. 1995. Nutrient losses from cropland in the Central Highlands of Kenya due to surface runoff and soil erosion. Soil Tillage Res., 33:109-116.

0 0

Post a comment