LEADER 05092nam 2200601Ia 450 001 9910626106803321 005 20200520144314.0 010 $a1-283-90349-0 010 $a1-78064-171-0 035 $a(CKB)2670000000309910 035 $a(EBL)1103926 035 $a(OCoLC)823389872 035 $a(SSID)ssj0000784264 035 $a(PQKBManifestationID)12336852 035 $a(PQKBTitleCode)TC0000784264 035 $a(PQKBWorkID)10761903 035 $a(PQKB)11751195 035 $a(MiAaPQ)EBC1103926 035 $a(EXLCZ)992670000000309910 100 $a20120702d2013 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aShifting cultivation and secondary succession in the Tropics /$fAlbert O. Aweto 210 $aWallingford $cCABI$dc2013 215 $a1 online resource (208 p.) 300 $aDescription based upon print version of record. 311 $a1-78064-043-9 320 $aIncludes bibliographical references and index. 327 $aContents; Preface; Acknowledgements; 1 The Tropics; 1.1 Definition of the Tropics; 1.2 Climate; 1.2.1 Tropical rainforest climate; 1.2.2 Tropical wet-dry (savanna) climate; 1.2.3 Desert and semi-desert climates; 1.2.4 Monsoon climate; 1.2.5 Mild temperate (mesothermal) climate; 1.3 Vegetation; 1.3.1 Tropical rainforest; 1.3.2 Savanna; 1.3.3 Monsoon forest; 1.3.4 Desert and semi-desert; 1.4 Relief; 1.5 Soils; 1.5.1 Oxisols; 1.5.2 Ultisols; 1.5.3 Alfisols; 1.5.4 Inceptisols; 1.5.5 Entisols; 1.5.6 Vertisols; 1.5.7 Aridisols; 1.5.8 Mollisols; 1.6 Socio-economic Conditions 327 $a1.6.1 Low per-capita income1.6.2 Low level of industrialization; 1.6.3 Demographic characteristics; 1.6.4 Political instability; 1.6.5 Poverty; 1.6.6 Diseases; 1.7 Agriculture; 1.7.1 Shifting cultivation; 1.7.2 Permanent cultivation of field crops; 1.7.3 Plantation agriculture; 1.7.4 Livestock production; References; 2 Shifting Cultivation: Definition, Basic Features and Types; 2.1 Definition; 2.2 Characteristics of Shifting Cultivation; 2.3 Why Fields are Shifted; 2.4 Forms of Shifting Cultivation; 2.4.1 Slash-and-burn agriculture in forest and savanna lowlands; 2.4.2 The chitemene system 327 $a2.4.3 The Hmong system - a migratory shifting cultivation2.4.4 Shifting cultivation in the Orinoco floodplain; 2.4.5 The slash-mulch system; 2.4.6 The plough-in-slash system; References; 3 Soil Dynamics during Cultivation; 3.1 Effects of Vegetation Clearing; 3.1.1 Effects on microclimate; 3.1.2 Effects on the soil; 3.1.3 Nutrient and organic matter cycles; 3.1.4 Forest nutrient cycle; 3.1.5 Savanna nutrient cycle; 3.1.6 Nutrient cycling in shifting cultivation agroecosystems; 3.2 Vegetation Slash Burning; 3.2.1 Why vegetation slash is burned; 3.2.2 Effects on the soil 327 $a3.3 Organic Matter Decline3.4 Nutrient Decline during Cropping; 3.5 Decline in Soil Physical Status; 3.6 Erosion; 3.7 Shifting Cultivation in River Floodplains; References; 4 Soil Dynamics during the Fallow Period; 4.1 Soil Organic Matter Dynamics; 4.1.1 Organic matter equilibrium concept; 4.1.2 Organic matter equilibrium concept: an explanatory model; 4.1.3 Organic matter accretion in fallow soil in different ecological zones; 4.2 Nutrient Dynamics; 4.2.1 Forest fallows; 4.2.2 Savanna fallows; 4.3 Improvement in Soil Physical Status 327 $a4.4 Soil Organic Matter and Nutrient Dynamics in High-altitude Fallows4.5 Soil Erosion; References; 5 Fallow Vegetation Dynamics; 5.1 Fallow Vegetation as a Resource; 5.1.1 Intangible benefits; 5.1.2 Tangible benefits; 5.2 Rainforest Succession; 5.2.1 General features of rainforest secondary succession; 5.2.2 Characteristics of secondary or successional tree species; 5.2.3 Changes infloristic composition of vegetation; 5.2.4 Changes in number of species and species diversity; 5.2.5 Changes in vegetation structure; 5.3 Succession in Deciduous Seasonal (Monsoon) Forest 327 $a5.4 Succession in Savanna Ecosystems 330 $aShifting cultivation is the predominant system of arable farming in the humid and sub-humid tropics, where several hundred million people depend on this system of agriculture for their livelihood. This book documents and systematizes findings in shifting cultivation from over the last six decades, including characterizing secondary succession and relating the changes that fallow vegetation undergoes to the process of soil fertility restoration. This book is essential reading for researchers and students of tropical agriculture and related areas. 606 $aShifting cultivation$zTropics 606 $aPlant succession$zTropics 606 $aAgriculture$zTropics 615 0$aShifting cultivation 615 0$aPlant succession 615 0$aAgriculture 676 $a631.5818 700 $aAweto$b Albert O$01267300 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910626106803321 996 $aShifting cultivation and secondary succession in the Tropics$92980004 997 $aUNINA