[
Acharya, A.K. & Kafle N. (2009). Land degradation issues in Nepal and its management through agroforestry. Journal of Agriculture and Environment, 10, 133–143. DOI: 10.3126/aej. v10i0.2138.
]Open DOISearch in Google Scholar
[
Adugna, A. & Abegaz A. (2016). Effects of land use changes on the dynamics of selected soil properties in northeast Wellega, Ethiopia. Soil, 2, 63–70. DOI: 10.5194/soil-2-63-2016
]Open DOISearch in Google Scholar
[
Aghasi, B., Jalalian, A. & Honarjoo N. (2011). Decline in soil quality as a result of land use change in GharehAghaj watershed of Semirom, Isfahan, Iran. African. J. Agric. Res., 6(4), 992‒997. DOI: 10.5897/AJAR10.681.
]Open DOISearch in Google Scholar
[
Alem, S. & Pavlis J. (2014). Conversion of grazing land into Grevillea robusta plantation and enclosure: impacts on soil nutrients and soil organic carbon. Environ. Monit. Assess., 186(7), 4331–4341. DOI: 10.1007/s10661-014-3702-0.24696281
]Open DOISearch in Google Scholar
[
Andrews, S.S., Karlen, D.L. & Cambardella C.A. (2004). The soil management assessment framework: a quantitative soil quality evaluation method. Soil Sci. Soc. Am. J., 68, 1945–1962. DOI: 10.2136/sssaj2004.1945.
]Open DOISearch in Google Scholar
[
Asbjornsen, H., Hernandez-Santana, V., Liebman, M., Bayala, J., Chen, J., Helmers, M., Ong, C.K. & Schulte L.A. (2013). Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services. Renewable Agriculture and Food Systems, 29(2), 101–125. DOI: 10.1017/S1742170512000385.
]Open DOISearch in Google Scholar
[
Asmamaw, L.B. & Mohammed A.A. (2013). Effects of slope gradient and changes in land use/cover on selected soil physico-biochemical properties of the Gerado catchment, north-eastern Ethiopia. International Journal of Environmental Studies, 70(1), 111–125. DOI: 10.1080/00207233.2012.751167.
]Open DOISearch in Google Scholar
[
Awotoye, O., Ogunkunle, C.O. & Adeniyi A.A. (2011). Assessment of soil quality under various land use practices in a humid agro-ecological zone of Nigeria. African Journal of Plant Science, 5(10), 565–569. DOI: 10.5897/AJPS2020.2072
]Open DOISearch in Google Scholar
[
Awulachew, S.B., Yilma, A.D., Loulseged, M., Loiskandl, W., Ayana, M. & Alamirew T. (2007). Water resources and irrigation development in Ethiopia. Colombo: IWMI Working Paper.
]Search in Google Scholar
[
Azeb, B., Beccaluva, L., Bianchini, G., Colombani, N., Fazzini, M., Marchina, C., Natali, C. & Tewodros R. (2015). Water–rock interaction and lake hydrochemistry in the Main Ethiopian Rift. In P. Billi (Ed.), Landscapes and landforms of Ethiopia (pp. 307–321). Dordrecht, Heidelberg, New York, London: Springer.10.1007/978-94-017-8026-1_18
]Search in Google Scholar
[
Baribault, W., Kobe, K. & Finley O. (2012). Tropical tree growth is correlated with soil phosphorus, potassium, and calcium, though not for legumes. Ecol. Monogr., 82(2), 189‒203. DOI: 10.2307/41739364.
]Open DOISearch in Google Scholar
[
Barker, A.V. & Pilbeam D.J. (2007). Handbook of plant nutrition. Boca Raton, London: CRC Press.
]Search in Google Scholar
[
Beukes, P.C. & Ellis F. (2003). Soil and vegetation changes across a Succulent Karoo grazing gradient. Afr. J. Range Forage Sci., 20(1), 11‒19. DOI: 10.2989/10220110309485793.
]Open DOISearch in Google Scholar
[
Billi, P. (2015). Geomorphological landscapes of Ethiopia. In P. Billi (Ed.), Landscapes and landforms of Ethiopia (pp. 3–32). Dordrecht, Heidelberg, New York, London: Springer.10.1007/978-94-017-8026-1
]Search in Google Scholar
[
Black, C.A. (1965). Methods of soil analysis. Madison, Wisconsin: American Society of Agronomy.10.2134/agronmonogr9.1
]Search in Google Scholar
[
Blake, G.R. (1965). Bulk density. In C.A. Black (Ed). Methods of soil analysis (pp. 374−399). Madison, Wisconsin: American Society of Agronomy.10.2134/agronmonogr9.1.c30
]Search in Google Scholar
[
Bouyoucos, G.J. (1962) Hydrometer method improved for making particle size analysis of soils. Agron. J., 54, 464−465. DOI: 10.2134/agronj1962.0 0021962005400050028x.
]Open DOISearch in Google Scholar
[
Brady, N.C. & Weil R.R. (2007). The nature and properties of soils. Pearson Prentice Hall.
]Search in Google Scholar
[
Bremner, J.M. & Mulvaney C.S. (1982). Nitrogen total. In R.H. Miller & D.R. Keeney (Eds.), Methods of soil analysis, Part 2 (pp. 595−624). Madison, Wisconsin: American Society of Agronomy.10.2134/agronmonogr9.2.2ed.c31
]Search in Google Scholar
[
Campbell, D.J., Lusch, D.P., Smucker, T.A. & Wangui E.E. (2005). Multiple methods in the study of driving forces of land use and land cover change: a case study of SE Kajiado district Kenya. Hum. Ecol., 33, 763‒794. DOI: 10.1007/s10745-005-8210-y.
]Open DOISearch in Google Scholar
[
Carter, M.R. & Gregorich E.G. (2007). Soil sampling and methods of analysis. Boca Raton: CRC Press. DOI: 10.1201/9781420005271
]Open DOISearch in Google Scholar
[
Damene, S., Vlek, P.L.G. & Tamene L. (2013). Performance of exclosure in restoring soil fertility: A case of Gubalafto district in North Wello Zone, northern highlands of Ethiopia. Catena, 101, 136−142. DOI: 10.1016/j.catena.2012.10.010.
]Open DOISearch in Google Scholar
[
Da Silva, J.M.C. & Bates J.M. (2002). Biogeographic patterns and conservation in the South American Cerrado: A Tropical Savanna Hotspot: The Cerrado, which includes both forest and savanna habitats, is the second largest South American biome, and among the most threatened on the continent. BioScience, 52, 225‒234. DOI: 10.1641/0006-3568(2002)052[0225:BPACIT]2.0.CO;2.
]Open DOISearch in Google Scholar
[
Dauda, A. & Samari A. (2002). Cowpea yield response to soil compaction under tractor traffic on a sandy loam soil in the semi-arid region of northern Nigeria. Soil Tillage Res., 68(1), 17−22. DOI: 10.1016/S0167-1987(02)00064-8.
]Open DOISearch in Google Scholar
[
Deininger, K. (2013). Global land investment in the bio-economy: evidence and policy implications. Agricultural Economics, 44(s1), 115–127. DOI: 10-1111/agec.12056.
]Open DOISearch in Google Scholar
[
Edossa, E., Nigussie, D., Tena, A., Yibekal, A. & Lemma D. (2014). Irrigation water management practices in smallholder vegetable crops production: the case of the Central Rift Valley of Ethiopia. Science, Technology and Arts Research Journal Science, 3(1), 74–83. DOI: 10.4314/star.v3i1.13.
]Open DOISearch in Google Scholar
[
Emadi, M., Emadi, M., Baghernejad, M., Fathi, H. & Saffari M. (2008). Effect of land use change on selected soil physical and chemical properties in North Highlands of Iran. Journal of Applied Science, 8, 496–502. DOI: 10.3923/jas.2008.496.502.
]Open DOISearch in Google Scholar
[
Estefan, G., Sommer, R. & Ryan J. (2013). Methods of soil, plant, and water analysis: A manual for the West Asia and North Africa region. Beirut: ICARDA.
]Search in Google Scholar
[
Fallahzade, J. & Hajabbasi M.A. (2013). The effects of irrigation and cultivation on the quality of desert soil in central Iran. Land Degrad. Dev., 23, 3–61. DOI: 10.1002/ldr.1049.
]Open DOISearch in Google Scholar
[
FAO (Food and Agriculture Organization of the United Nations) (1979). A provisional methodology for soil degradation assessment. Rome: FAO.
]Search in Google Scholar
[
FAO (Food and Agriculture Organization of the United Nations) (2001). The state of food and agriculture. Rome: FAO.
]Search in Google Scholar
[
FAO (Food and Agriculture Organization of the United Nations) (2006). Guidelines for soil profile description. Rome: FAO.
]Search in Google Scholar
[
FAO (Food and Agriculture Organization of the United Nations) (2014). Impacts of foreign agricultural investments on developing countries: evidence from case studies. FAO commodity and trade policy research working paper.
]Search in Google Scholar
[
FAO/UNESCO (1990). Soil map of the world: Revised legend. Rome: FAO.
]Search in Google Scholar
[
Funes-Monzote, F.R. (2008). Farming like we’re here to stay: The mixed farming alternative for Cuba. PhD thesis, Wageningen University the Netherlands. 2008. https://edepot.wur.nl/122038.
]Search in Google Scholar
[
Glover, D. (2003). Characteristics and impacts of annual vs perennial systems. Proceedings of Sod Based Cropping Systems Conference, North Florida Research and Education Center-Quincy, University of Florida, Feb. 20–21.
]Search in Google Scholar
[
Godfray, H., Beddington, J., Crute, I., Haddad, L., Lawrence, D., Muir, J., Pretty, J., Robinson, S., Thomas, S. & Toulmin C. (2010). Food security: the challenge of feeding 9 billion people. Science, 327, 812–818. DOI: 10.5897/AJAR10.681.
]Open DOISearch in Google Scholar
[
Haan, C.T., Barfield, B.J. & Hayes J.C. (1994). Design hydrology and sedimentology for small catchments. In C.T. Haan, B.J. Barfield & J.C. Hayes (Eds.), 7 - Sediment properties and transport (pp. 204–237). Academic Press. DOI: 10.1016/b978-0-08-057164-5.50011-6.
]Open DOISearch in Google Scholar
[
Habtamu, A., Heluf, G., Bobe, B. & Enyew A. (2014). Fertility status of soils under different land uses at Wujiraba Watershed, North-Western Highlands of Ethiopia. Agriculture, Forestry and Fisheries, 5, 410–419. DOI: 10.11648/j.aff.20140305.24.
]Open DOISearch in Google Scholar
[
Hurni, H. (1998). Agro-ecological belts of Ethiopia. Research report. Addis Ababa: Soil Conservation Research Program.
]Search in Google Scholar
[
IAEA (International Atomic Energy Agency) (2003). Soil and Water Management & Crop Nutrition Section. Vienna: IAEA.
]Search in Google Scholar
[
Karlen, D.L., Ditzler, C.A. & Andrews S.S. (2003). Soil quality: why and how? Geoderma, 114, 145–156. DOI: 10.1016/S0016-7061(03)00039-9.
]Open DOISearch in Google Scholar
[
Keeley, J., Seide, W.M., Eid, A. & Kidewa A.L. (2014). Large scale land deals in Ethiopia: Scale, trends, features and outcomes to date. London: IIED.
]Search in Google Scholar
[
Kinfe, H. (1999). Impact of climate change on the water resources of Awash River Basin, Ethiopia. Clim. Res., 12, 91–96.10.3354/cr012091
]Search in Google Scholar
[
Khreast, S., Al-Bakri, J. & Al-Tahhan R. (2008). Impacts of land use/cover change on soil properties in the Mediterranean region of northwestern Jordan. Land Degrad. Dev., 19, 397–407. DOI: 10.1002/ldr.847.
]Open DOISearch in Google Scholar
[
Kramer, P.J. & Boyer J.S. (1995). Water relations of plants and soils. San Diego: Academic Press. http://udspace.udel.edu/handle/19716/2830.10.1016/B978-012425060-4/50003-6
]Search in Google Scholar
[
Laekemariam, F., Kibret, K., Mamo, T., Karltun, E. & Gebrekidan H. (2016). Physiographic characteristics of agricultural lands and farmers’ soil fertility management practices in Wolaita zone, Southern Ethiopia. Environmental System Research, 5(24), 1–16. DOI: 10.1186/s40068-016-0076.
]Open DOISearch in Google Scholar
[
Lal, R. & Shukla K.M. (2004). Principles of soil physics. New York: Marcel Dekker Inc. DOI: 10.4324/9780203021231.
]Open DOISearch in Google Scholar
[
Landon, J.R. (1991). Booker tropical soil manual: A hand book for soil survey and agricultural land evaluation in tropics and subtropics. New York: Taylor and Francis.
]Search in Google Scholar
[
Martin, S. (2002). Identifying critical limits for soil quality indicators in agro-ecosystems. Agric. Ecosyst. Environ., 88, 153–160. DOI: 10.1016/S0167-8809(01)00252-3.
]Open DOISearch in Google Scholar
[
Mezegebu, G., Hengsdijk, H. & van Ittersum M. (2014). Disentangling the impacts of climate change, land use change and irrigation on the Central Rift Valley water system of Ethiopia. Agric. Water Manag., 137, 104–115. DOI: 10.1016/j.agwat.2014.02.014.
]Open DOISearch in Google Scholar
[
Mohammed, A.P., le Roux, A.L., Barker, C.H. & Heluf G. (2005). Soils of Jelo Micro-Catchment in the Chercher highlands of eastern Ethiopia: I. Morphological and physiochemical properties. Ethiop Journal of Natural Resources, 7(1), 55–81.
]Search in Google Scholar
[
Mohr, P.A. (1971). The geology of Ethiopia. Addis Ababa: University Press.
]Search in Google Scholar
[
Morgan, M.F. (1957). The universal soil testing system. Bulletin 372. Connecticut Agricultural Experiment Station.
]Search in Google Scholar
[
Randall, G.W., Huggins, D.R., Russelle, M.P., Fuchs, D.J., Nelson, W.W. & Anderson J.L. (1997). Nitrate losses through subsurface tile drainage in CRP, alfalfa, and row crop systems. J. Environ. Qual., 26, 1240–1247. DOI: 10.2134/jeq1997.00472425002600050007x.
]Open DOISearch in Google Scholar
[
Schjønning, P., Elmholt, S. & Christensen B.T. (2004). Managing soil quality: Challenges in modern agriculture. Danish Institute of Agricultural Sciences Research Centre Foulum Tjele Denmark.10.1079/9780851996714.0000
]Search in Google Scholar
[
Singh, A.K., Bordoloi, L.J., Kumar, M., Hazarika, S. & Parmar B. (2014). Land use impact on soil quality in eastern Himalayan region of India. Environ. Monit. Assess., 186(4), 2013–2024. DOI: 10.1007/s10661-013-3514-7.24221958
]Open DOISearch in Google Scholar
[
Six, J., Conant, R.T., Paul, E.A. & Paustian K. (2002). Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils. Plant Soil, 241, 155–176. DOI: 10.1023/A:1016125726789.
]Open DOISearch in Google Scholar
[
Swinton, S.M., Lupi, F., Robertson, G.P. & Hamilton S.K. (2007). Ecosystem services and agriculture: cultivating agricultural ecosystems for diverse benefits. Ecological Economics, 64, 245–252. DOI: 10.1016/j.ecolecon.2007.09.020.
]Open DOISearch in Google Scholar
[
Tefera, M., Chernet, T. & Harro W. (1996). Explanation on geological map of Ethiopia a 1:2,000,000 scale. Addis Ababa: Geological Survey of Ethiopia.
]Search in Google Scholar
[
Teferi, E., Bewket, W. & Simane B. (2016). Effects of land use and land cover on selected soil quality indicators in the headwater area of the Blue Nile basin of Ethiopia. Environ. Monit. Assess., 188(2), 1–12. DOI: 10.1007/s10661-015-5086-1.26744135
]Open DOISearch in Google Scholar
[
Teklu, B.M., Hailu, A., Wiegant, D.A., Scholten, B.S. & Van den Brink P.J. (2018). Impacts of nutrients and pesticides from small- and large-scale agriculture on the water quality of Lake Ziway, Ethiopia. Environ. Sci. Pollut. Res., 25, 13207–13216. DOI: 10.1007/s11356-0166714.
]Open DOISearch in Google Scholar
[
Tesfahunegn, G.B. (2016). Soil quality indicators response to land use and soil management systems in northern Ethiopia’s catchment. Land Degrad. Dev., 27(2), 438–448. DOI: 10.1002/ldr.2245.
]Open DOISearch in Google Scholar
[
Tewodros, R. (2009). Geochemical and isotopic composition of natural waters in the Central Main Ethiopian Rift: emphasis on the study of source and genesis of fluoride. Doctoral Dissertation, University of Ferrara, Italy.
]Search in Google Scholar
[
van Reeuwijk, L.P. (2002). Procedures for soil analysis. Wageningen: International Soil Reference and Information Centre.
]Search in Google Scholar
[
Walkley, A. & Black I.A. (1934). An examination of the Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Sci., 37, 29−38.10.1097/00010694-193401000-00003
]Search in Google Scholar
[
Wild, A. (2003). Soils, land and food. Managing the land during the twenty-first century. Cambridge: Cambridge University Press. DOI: 10.1017/CBO9780511815577.
]Open DOISearch in Google Scholar
[
Wondwosen, A. & Mohammed A. (2019). Dynamics of selected soil quality indicators in response to land use/cover & elevation variations in Wanka Watershed, Northwestern Ethiopian Highlands Ekológia (Bratislava), 38(2), 126–139. DOI: 10.2478/eko-2019-0010.
]Open DOISearch in Google Scholar
[
Yesilonis, I., Szlavecz, K., Pouyat, R., Whigham, D. & Xia L. (2016). Historical land use and stand age effects on forest soil properties in the Mid-Atlantic US. For. Ecol. Manag., 370, 83–92. DOI: 10.1016/j.foreco.2016.03.046.
]Open DOISearch in Google Scholar
[
Yitbarek, T., Gebrekidan, H., Kibret, K. & Beyene S. (2013). Impacts of land use on selected physicochemical properties of soils of Abobo area, western Ethiopia. Agriculture, Forestry and Fisheries, 2(5), 177177–177183. DOI: 10.11648/j.aff.20130205.11.
]Open DOISearch in Google Scholar
[
Zhao, X., Wu, P., Gao, X. & Persaud N. (2015). Soil quality indicators in relation to land use and topography in a small catchment on the Loess Plateau of China. Land Degrad. Dev., 26(1), 54–61. DOI: 10.1002/ldr.2199.
]Open DOISearch in Google Scholar
[
Zhang, Y., Li. Y., Jiang, L., Tian, Ch., Li, J. & Xiao Z. (2011). Potential of perennial crop on environmental sustainability of agriculture. Procedia Environmental Sciences, 10, 1141–1147. DOI: 10.1016/j.proenv.2011.09.182.
]Open DOISearch in Google Scholar