Soils, Ecosystem Processes, and Agricultural Development

1. Introduction (Shinya Funakawa).- Part I. Distribution of clay minerals in tropical Asia and Africa with special reference to parent materials (geology) and climatic conditions.- 2. Parent materials and climate control secondary mineral distributions in soil in Kalimantan, Indonesia (Tetsuhiro Watanabe and Supiandi Sabiham).- 3. Influence of climatic factor on clay mineralogy in humid Asia-Significance of vermiculitization of mica minerals under a udic soil moisture regime (Shinya Funakawa and Tetsuhiro Watanabe).- 4. Soil-forming factors determining the distribution patterns of different soils in Tanzania with special reference to clay mineralogy (Shinya Funakawa and Method Kilasara).- 5. Soil fertility status in equatorial Africa-A comparison of the Great Rift Valley regions and central/western Africa (Shinya Funakawa and Takashi Kosaki).- 6. Significance of active aluminum and iron on organic carbon preservation and phosphate sorption/release in tropical soils (Tetsuhiro Watanabe).- Part II Ecosystem processes in forest-soil systems under different geological, climatic, and soil conditions.- 7. Soil acidification processes under different geological and climatic conditions in tropical Asia (Kazumichi Fujii and Arief Hartono).- 8. Savannazation of African tropical forest critically changed the soil nutrient dynamics in East Cameroon (Soh Sugihara).- 9. Ecosystem processes of Ferralsols and Acrisols in forest-soil systems of Cameroon (Makoto Shibata).- Part III Human adaptation of agricultural practices in upland soils under different bio-climatic conditions in tropical Asia and Sub-Saharan Africa.- 10. Changes in elemental dynamics after reclamation of forest and savanna in Cameroon and comparison with the case in Southeast Asia (Makoto Shibata).- 11. Shifting cultivation in northern Thailand with special reference to the function of the fallow phase (Shinya Funakawa).- 12. Slash and burn agriculture in Zambia (Kaori Ando and Hitoshi Shinjo).- 13. Comparison of nutrient utilization strategies of traditional shifting agriculture under different climatic and soil conditions in Zambia, Thailand, Indonesia, and Cameroon-Examples of temporal redistribution of ecosystem resources (Shinya Funakawa).- 14. Interactions between agricultural and pastoral activities in the Sahel with emphasis on management of livestock excreta-A case study in southwestern Niger (Hitoshi Shinjo).- Part IV Possible strategies for controlling nutrient dynamics in future agricultural activities in the tropics.- 15. Control of wind erosion loss of soils and organic matter using the "Fallow Band System" in semi-arid sandy soils of the Sahel (Kenta Ikazaki).- 16. Process of runoff generation at different cultivated sloping sites in North and Northeast Thailand (Shinya Funakawa).- 17. Control of water-erosion loss of soils using appropriate surface management in Tanzania and Cameroon (Tomohiro Nishigaki).- 18. Utilization of soil microbes as a temporal nutrient pool to synchronize nutrient supply and uptake: a trial in the dry tropical croplands of Tanzania (Soh Sugihara and Method Kilasara).- 19. Conclusion (Shinya Funakawa).

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• Ciências do solo, sedimentologia
• Ciência ecológica, a biosfera
• Ciência agrícola
• Mineralogia e pedras preciosas

Environmental agronomy;Mineralogy;Pedology;Soil ecosystems;Soil resources;Tropical agriculture