Presents results of economic analysis carried out in southwestern Nigeria to determine the profitability of alternative land use systems, taking into account the short and long-run impact of soil erosion on agricultural productivity. The fallow systems include 1. two continuous cultivation alley ...
Ehui, Simeon K.
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Kang, B.T.
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Spencer, D.S.C.
,
[Economic analysis of soil erosion effects in alley cropping. No-till and bush fallow systems in south west Nigeria]
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Economic analysis of soil erosion effects in alley cropping. No-till and bush fallow systems in south west Nigeria
Outlines some of the work being done by ILCA in the field of agroecological zonation and the use of models to predict the effect of environment on pastoral and agricultural systems. Includes plans for future developments and the potential benefits of the work.
Henricksen, B.L.
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[Determination des zones agro-ecologiques d'Afrique: travaux et projets du CIPEA]
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Determination des zones agro-ecologiques d'Afrique: travaux et projets du CIPEA
Wetlands are important providers of ecosystem services and key regulators of climate change. They positively contribute to global warming through their greenhouse gas emissions, and negatively through the accumulation of organic material in histosols, particularly in peatlands. Our understanding ...
Gumbricht, Thomas
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Román Cuesta, Rosa Maria
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Verchot, Louis V.
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Herold, Martin
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Wittmann, Florian
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Householder, Ethan
,
Herold, Nadine
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Murdiyarso, Daniel
,
[An expert system model for mapping tropical wetlands and peatlands reveals South America as the largest contributor]
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An expert system model for mapping tropical wetlands and peatlands reveals South America as the largest contributor
Castro-Nuñez, Augusto
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Mertz, Ole
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Buritica Casanova, Alexander
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Sosa, Chrystian C.
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Lee, Stephanie T.
,
[Land related grievances shape tropical forest-cover in areas affected by armed-conflict]
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Land related grievances shape tropical forest-cover in areas affected by armed-conflict
Summarises the literature on the alleged defects of traditional systems of land tenure in Nigeria. Reviews the provisions of the land use decree and their implications for rural land tenure.
Francis, P.A.
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[Nationalisation de terres et regime foncier dans le sud-ouest du Nigeria]
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Nationalisation de terres et regime foncier dans le sud-ouest du Nigeria
This study examined trends in population redistribution and residential land use changes in northeast Scotland during 1988 to 2003. We utilised a geographical information system (GIS) tool to bring together data from interrelated sources and to analyse population settlement and land use changes a...
Gelan, A.
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Shannon, P.
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Aitkinhead, M.
,
[Sustainable local land use policy: rhetoric and reality]
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Sustainable local land use policy: rhetoric and reality
Land use was examined in three settlements Pedro Peixoto in Acre and Theobroma in Rondonia, Brazil, and Pucallpa, in Peru. Research aimed at characterizing the differences in land use after initial slash-and-burn, and presenting hypotheses to assess the feasibility of improved land uses. Settle...
Fujisaka, Sam
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White, D.
,
[Pasture or permanent crops after slash-and-burn cultivation? Land-use choice in three Amazon colonies]
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Pasture or permanent crops after slash-and-burn cultivation? Land-use choice in three Amazon colonies
It is generally assumed that phosphorus (P) availability for plant growth on highly weathered and P-deficient tropical soils may depend more on biologically mediated organic P (Po) turnover processes than on the release of adsorbed inorganic P (Pi). However, experimental evidence showing the link...
Oberson, Astrid
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Friesen, Dennis K.
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Rao, Idupulapati M.
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Buhler, S
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Frossard, Emmanuel
,
[Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass]
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Phosphorus transformations in an oxisol under contrasting land-use systems: The role of the soil microbial biomass
Spatially explicit models are becoming increasingly important tools for simulating land-use change. In this study, we formulated and tested models that incorporated spatial correlates of agricultural expansion and used them to predict local- and landscape-scale patterns of agricultural land-use c...
Msoffe, F.U.
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Said, Mohammed Yahya
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Ogutu, Joseph O.
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Kifugo, S.C.
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Leeuw, Jan de
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Gardingen, P. van
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Reid, Robin S.
,
[Spatial correlates of land-use changes in the Maasai-Steppe of Tanzania: Implications for conservation and environmental planning]
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Spatial correlates of land-use changes in the Maasai-Steppe of Tanzania: Implications for conservation and environmental planning