The Economics of Desertification, Land Degradation, and Drought

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Table A.4—Continued Author Country Area Conservation measure Posthumus and de Graaf 2005 Nkonya et al. 2008b Peru Pacucha, field 1 Crop Discount rate 142 Time horizon (years) Terraces 0.1 10 187 Neue Sol S/. Field 2 75 Neue Sol S/. Field 3 –96 Neue Sol S/. Field 4 –1,731 Neue Sol S/. Field 5 –869 Neue Sol S/. Field 6 –1,331 Neue Sol S/. Field 7 –2,344 Neue Sol S/. Field 8 –707 Neue Sol S/. Field 9 603 Neue Sol S/. Field 10 –906 Neue Sol S/. Field 11 –1,122 Neue Sol S/. Kenya Agroforestry Maize 0.1 50 152.00 In 1,000 plus organic KES per and inorganic fertilizer, fanya juu, fanya chini hectare Agroforestry Maize 0.1 50 176.05 In 1,000 plus organic KES per and inorganic fertilizer, fanya juu, fanya chini hectare NPV Unit Note Soil erosion with conservation Net gain Net gain Net gain Net gain Net gain Net gain Net gain Net gain Net gain Net gain Net gain Net gain, private NPV Net gain, social NPV (plus off-site effects) Soil erosion without conservation
Table A.4—Continued Author Country Area Conservation measure World Bank 2009 Niger Tree plantations Protected Areas Soil and water conservation Crop Discount rate 143 Time horizon (years) NPV Unit Note Soil erosion with conservation 0.1 307,000 FCFA/ha Assumption: Low fodder value 0.1 125,000 FCFA/ha High fodder value 0.1 239,000 FCFA/ha High fodder value 0.1 118,000 Not profitable FCFA/ha Low fodder value Source: Author’s compilation. Notes: Ramp pay = crop stubble laid out along the contour, supported by stakes, and covered with soil; Fanya juu = throwing soil uphill; Fanya chini = throwing soil downhill. Soil erosion without conservation
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IFPRI Discussion Paper 01086 May 20
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Contents Abstract vii Acknowledgmen
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List of Figures 1.1—Conceptual fr
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ABSTRACT Attention to land degradat
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ABBREVIATIONS AND ACRONYMS ADB Asia
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SCAR Soil Conservation in Agricultu
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In the present report, the conceptu
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Framework: Confronting Action versu
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understand these arrangements in or
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Figure 1.3—Prevention, mitigation
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on assessments at the micro level (
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does not clearly distinguish betwee
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Figure 2.1—GLASOD (1991) global a
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International Earth Science Informa
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Box 2.1—Continued Normalized Diff
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Figure 2.4—Loss of annual NPP, GL
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Figure 2.7—Annual loss of NPP in
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Table 2.2—Nitrogen application ra
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Figure 2.12—Areas affected by hum
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output—which is a selection of su
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GLADIS also underlines the linkage
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Box 2.2—Continued A map on global
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Table 2.3—Global land degradation
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Table 2.3—Continued Project and d
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Table 2.4—Continued Location 10 2
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Table 2.6—Extent and severity of
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National Level Policies As discusse
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Such support has also been directed
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Migration, either as outmigration o
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The preceding discussion shows the
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Results Correlation Analysis Consis
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Figure 2.23—Relationship between
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Effects of Land Degradation On-Site
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soils and higher land productivity.
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Acknowledging the work of GLADIS, a
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health, education, security, enviro
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Box 3.1—Recent major economic ass
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An appropriate economic tool for a
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Figure 3.4—Cost of action and cos
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enefit—for example, income. This
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Figure 3.6—Ecosystem services fra
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Replacement Cost Approaches The rep
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Box 3.2—Measuring land degradatio
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land degradation and conservation m
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Flooding and Aquifer Recharge Richa
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year (Diao and Sarpong 2007). Sonne
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Bringing together the different cos
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This section discusses the most imp
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governing land use patterns (Leeman
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promotion of community forest manag
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Box 4.3—Reducing emissions from d
Page 104 and 105: Soil Nutrient Depletion Soil nutrie
Page 106 and 107: that the yields of salt-tolerant wh
Page 108 and 109: Figure 5.3—Forest area as a perce
Page 110 and 111: Figure 5.5—Per capita water stora
Page 112 and 113: Introduction 6. CASE STUDIES Five c
Page 114 and 115: Salinity The effects of salinity on
Page 116 and 117: Third, to correctly decide which ac
Page 118 and 119: Costs of Action and Inaction We eva
Page 120 and 121: The NGOs and religious organization
Page 122 and 123: have a strong influence on NRM (And
Page 124 and 125: We estimated the cost of action (de
Page 126 and 127: Figure 6.15—Costs of action and i
Page 128 and 129: Of interest to us is the strategy t
Page 130 and 131: 7. PARTNERSHIP CONCEPT The review o
Page 132 and 133: degradation. All this should be don
Page 134 and 135: Finally, the global assessment of D
Page 136 and 137: the experience of and lessons learn
Page 138 and 139: Table 7.3—Example of E-DLDD resea
Page 140 and 141: 8. CONCLUSIONS Since the publicatio
Page 142 and 143: lowest in the region. From a socioe
Page 144 and 145: Table A.1—Land degradation assess
Page 146 and 147: Table A.2—Continued Author Region
Page 148 and 149: Table A.3—Continued Author Countr
Page 156 and 157: Table A.5—Costs of land degradati
Page 158 and 159: Figure B.1—Land use systems of th
Page 160 and 161: REFERENCES Abelson, P. 1979. Cost B
Page 162 and 163: Benin S., E. Nkonya, G. Okecho, J.
Page 164 and 165: Clark, E. H. 1985. The Off-Site Cos
Page 166 and 167: De Jager a., D. Onduru and C. Walag
Page 168 and 169: Foster, V., and C. Briceño-Garmend
Page 170 and 171: Holden, S. and H. Lofgren. 2005. As
Page 172 and 173: Lapar, M. L., and S. Pandey. 1999.
Page 174 and 175: Nachtergaele, F., M. Petri, R. Bian
Page 176 and 177: Pender, J. L. 2009. “Food Crisis
Page 178 and 179: Sauer, J., and H. Tchale. 2006. Alt
Page 180 and 181: Tan, Z. X., R. Lal, and K. D. Wiebe
Page 182 and 183: ———. 2010. “Assessment of L
Page 187 and 188: RECENT IFPRI DISCUSSION PAPERS For
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The Economics of Desertification, Land Degradation, and Drought

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