REFERENCES
- Ajayi , S. S. and Ayodele , I. A. Wildlife conservation and management in West Africa. Pp 127-135. Proceedings of UNESCO-MAB Regional Training Workshop . Akure, Nigeria 23-26 July 1995. : Federal University of Technology .
- Banjoko , V. A. 1981 . Effect of moisture regime on the extractable contents in selected soils of south western Nigeria. . Nigerian Journal of Soil Science , 1 ( 12 ) : 13 – 23 .
- Bray , R. H. and Kurtz , L. T. 1945 . Determination of total organic and available forms of phosphorus in soils. . Soil Sci. , 59 : 39 – 45 .
- Day , P. R. 1965 . “ Particle fraction formation and particle size analysis. ” . In Amer. Soc. Agron Madison, Wisconsin. 545-567
- Ffolliott , P. F. , Gerald , J. , Gott Friedt , W. and Rietveld , J. 1995 . Dry land forestry for sustainable development. . J. Arid Environment , 30 : 143 – 152 .
- Guardian Newspapers. Monday 13 August 21 2001 . Sustaining fight on desert encroachment , Monday 13 August 21 , Lagos : Guardian Publishers. .
- Hunter , A. H. Soil analysis procedures using the modified NaHCO3 extraction solution . Conf. Lab. International Soil Fertility Evaluation and Improvement. Raleigh, North Carolina
- Inah , E. I. Impacts of bush burning on desertification in Bauchi state. Proceedings of International workshop on Natural and man-made Hazards in Africa . pp. 113 – 118 . 30th January to 4th February 1993 at Ikenga Hotel Awka, Anambra state
- Inah , E. I. 1994 . Implication of land use forms on the abundance of wildlife habitats outside conservation areas in Bauchi state, Nigeria. . Nigerian Journ. Forestry , 24 ( 1&2 ) : 3 – 6 .
- Inah , E. I. 1998 . Plant species composition in four local government areas and Yankari National Park in Bauchi and Gombe states, Nigeria. . J. of Tropical-Ethno-Forestry , 1 ( 1 ) : 1 – 18 .
- Inah , E. I. and Amubode , F. O. 1994 . The effect of plant usage on tree height and canopy in Bauchi state, Nigeria . Journ. of Tropical Forest Res. , 9&10 : 20 – 28 .
- Inah , E. I. and Onadeko , S. A. 1997 . Human persecution of wild animals outside conservation areas in Bauchi state, Nigeria. . Nig. Journ. Forestry , 27 ( 2 ) : 55 – 61 .
- Jones , M. J. and Wild , A. 1975 . Soils of the West African Savanna. , 246 Harpenden, , England : Commonwealth Agricultural Bureau .
- Juo , A. S. R. , ed. 1975 . Selected method for soil and plant analysis , 250 Ibadan, Nigeria. : 1st edition International Institute for Tropical Agriculture .
- Kaoneka , A. R. S. and Solberg , B. 1994 . Forestry related land use in the west Usambara mountains, Tanzania. . Agriculture, Ecosystems and Environment , 49 ( 2 ) : 207 – 215 .
- Macharia , D. W. , Moll , W. and Kamau , P. A. 1996 . Relation of some chemical properties to soil erodibility of some south western Kenyan soils. . African Crop Science Journal , 4 ( 2 ) : 185 – 196 .
- Mamman , A. B. Management of dry lands for sustainable development. Proceedings of the 23rd Annual Conference of Soil Science Society of Nigeria. held at Usmanu Danfodiyo University . pp. 167 – 175 . Sokoto Nigeria, 2nd-5th March 1997
- Okelabo , J. R. , Gathau , K. W. and Woomer , P. L. , eds. 1993 . Laboratory methods of soil and plant analysis. A working manual. TSBF Nairobi
- Pryde , P. R. 1986 . Strategies and problems of wildlife preservation in USSR. . Biol. Conserv. , 36 : 351 – 375 .
- Shepherd , G. , Buresh , R. J. and Gregory , P. J. 2001 . Inorganic soil nitrogen in relation to soil properties in small hoeden maize fields in the Kenyan highlands. . Geoderma , 101 ( 3/4 ) : 87 – 103 .
- Taylor , H. M. and Burnett , E. 1964 . Influence of soil strength on root growth habits of plants. . Soil Science , 98 : 174 – 180 .
- Turabu , H. M. Review of afforestation and environmental programmes (Arid Zone Afforestation). Pp. Proceedings of National workshop on “Strategies for Environmental Forestry Management in Nigeria. Edited by: Akinsanmi , F. A. pp. 18 – 28 .
- Westerman , R. L. , ed. 1990 . Soil testing and plant analysis. 350 Third Edition