World’s Soil Resources

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The land sparing, land sharing approach can also been framed in terms of resilience (sharing) and efficiency (sparing). Efficient systems by their very nature will prioritise the performance of one function over that of others. The degree to which others are affected will depend on whether they perform well under similar management or not. Currently, the data in 3 indicate that the choice lies between efficiency and redundancy. We can have an efficient carbon storage system, e.g. peat development, which may also perform well as a climate thermal buffer because the conditions for peat accumulation require lots of water, but it will not be productive for crops in that state, nor will the arable system have high biodiversity as this is inefficient. Choices need to be made as to what types of systems we wish to promote. In light of this, the focus of this chapter is to assess the global scientific literature and understand how soil change discussed in Chapters 5 and 6 is likely to impact soil functions and the likely consequences for ecosystem service delivery. Each section of this chapter outlines key soil processes involved with the delivery of goods and services and how these are changing or - where evidence permits - may change. Each section then reviews how this change impacts soil function and affects ecosystem service delivery. Some soil change does not produce an ecosystem service, but does impact it; these impacts are considered when assessed as important and adverse. The focus is on the local, regional and global scales and follows the general reporting categories of the MA (2005) modified by TEEB (2014) to provisioning, regulating and cultural services. Towards the end of the section there is a focus on the links with policy, institutions and management. 7.2 | Soil change and food security Keating et al. (2014) provide a useful frame for examining the main roles of soils in food supply through their development of the food wedge concept. The food wedge is the triangular area between the level of food demand in 2010 and the upper bound of food demand in 2050 (suggested by Keating and Carberry (2010) as a wedge equal to approximately 127 x 1015 kcal). The food wedge presented by Keating et al. (2014) assumes that food supply and demand were broadly in balance in 2010. Increases in food supply (through, for example, the strategies suggested by Foley et al., 2011) would increase the supply to meet the rising demand for food. Either the incremental loss of productivity from current agricultural land or the total loss of agricultural land due to degradation in the future would cause the lower boundary of the wedge to decrease and hence increase the gap between food supply and demand (Figure 7.4). This decrease (or total loss) could occur if the services for plant production supplied by the soil decreased due to a significant impairment of one or more of the soil functions. Alternatively the restoration of productivity to previously degraded land would increase plant production in addition to addressing the yield gap or increases in food delivery. Therefore a key soilfocused strategy is to reduce future productivity loss from agricultural soils due to degradation to a minimum and to restore productivity to soils that have previously experienced productivity losses. Status of the World’s Soil Resources | Main Report The impact of soil change on ecosystem services 172
0.0 Response 1.0 Water quality Soil diversity Pollination (B'flies) Plant diversity Pollination (Bee) Freshwater diversity Soil C storage cSLA Cultural Figure 7.3 Response curves of mean ecosystem service indicators per 1-km 2 across Great Britain. Source: Maskell et al., 2013. The curves are fitted using generalized additive models to ordination axes constrained by; (a) proportion of intensive land (arable and improved grassland habitats) within each 1-km square from CS field survey data; (b) mean long-term annual average rainfall (1978–2005); and (c) mean soil pH from five random sampling locations in each 1-km square. All X axes are scaled to the units of each constraining variable 0.0 Proportion of intensive land in 1km square 1.0 0 Response 1.2 cSLA Freshwater diversity Soil C storage Plant diversity Butt Soil diversity 50 Rainfall (mm) 5000 0.0 Response 1.0 Soil C storage Water quality Soil diversity Pollination (B'flies) Freshwater diversity Plant diversity Pollination (Bee) cSLA Cultural 2.0 Mean Soil pH 9.0 Status of the World’s Soil Resources | Main Report The impact of soil change on ecosystem services 173
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Status of the World’s Main Report
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Dick, Warren Dos Santos Baptista, I
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Table of contents Disclaimer and co
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4.1 | Current land cover and land u
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6.5.5 | Responses | 126 6.6 | Soil
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7.7.3 | Soil and drought hazard | 1
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9.5.2 | South Africa | 266 9.6 | Su
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12.3.8 | Soil acidification | 373 1
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14.5.4 | Nutrient imbalance | 464 1
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Foreword This document presents the
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Preface | Scope of The State of the
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Acknowledgments The Status of the W
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CACILM CAMRE CAZRI CBD CBM-CFS CCAF
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FDNPS FFS FIA FSI FSR GAP GDP GEF G
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LU MA MADRPM MAF MAFF MDBA MDGS MEN
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SKM SLAM SLC SLM SMAP SMOS SOC SOE
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List of tables Table 1.1 | Chronolo
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List of figures Figure 2.1 | Overvi
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Figure 6.15 | Factors controlling s
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Figure 11.4 | Soil map and soil deg
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colored diaper associated with micr
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Preface The main objectives of The
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Global soil resources Coordinating
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The balance between the supporting
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1.2 | Basic concepts Prior to the 2
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Soil functions and ecosystem servic
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Climate regulation ∑ Regulation o
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2 | The role of soils in ecosystem
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2.1.2 | Nature and formation of soi
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2.1.4 | Factors influencing soil C
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In coming years, human population a
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Management practices need to be imp
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Another important role of soil wate
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The development of molecular techno
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Fierer, N., Ladau, J., Clemente, J.
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Sato, T., Qadir, M., Yamamoto, S.,
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3 | Global Soil Resources 3.1 | The
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Fridland’s was the first attempt
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Soil management has a considerable
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Accumulation of water soluble salts
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and increases infiltration, which r
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Figure 3.7 Soil suitability for cro
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3.7 | Global assessments of soil ch
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3.7.2 | LADA-GLADIS: the ecosystem
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References AFES. 2008. Réferentiel
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Neustuev, S.S. 1931. Elements of So
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75% crops Mixed >50% artificial 50-
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or increasing forest areas. Between
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Degrading land covers approximately
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70 60 (A) soil carbon 50 Soil
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A meta-analysis of 57 publications
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the nutrient inputs remain in the c
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Livestock density Livestock product
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4.3.3 | Land use change resulting i
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Impact of land take Land take, by i
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Photo by F. Macias Photo by J.C. Fe
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The formation of sulfidic material
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are however strongly dependent on t
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Figure 4.10 Global distribution of
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Bardgett, R.D. & van der Putten, W.
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Dentener, F., Drevet, J., Lamarque,
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Hettelingh, J.P., Sliggers, J., van
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Magnani, F., Mencuccini, M., Borghe
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Pugh, T.A.M., Arneth, A., Olin, S.,
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Van Aardenne, J.A., Dentener, F.J.,
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5 | Drivers of global soil change D
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5.1.2 | Urbanization In tandem with
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Large areas of arable land have bee
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most affected zone with 15 million
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(Brito et al., 2005). This has impl
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MA. 2005. Ecosystems and Human Well
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6.1.2 | Status of Soil Erosion Over
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Figure 6.2 Location of active and f
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High soil erosion rates will also h
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Near-surface soil water content has
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6.2 | Global soil organic carbon st
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where the drainage in the 1960’s
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6.2.4 | Spatial distribution of car
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Vegetation Classes Topsoil Subsoil
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Soil Order Historic Area 10 6 ha Pr
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6.3 | Soil contamination status and
Page 163 and 164: and Uruguay. The number of exposed
Page 165 and 166: products increase soil acidity (Bar
Page 167 and 168: availability and inhibit plant grow
Page 169 and 170: In several Asian countries, a blend
Page 171 and 172: underlines the need for global-scal
Page 173 and 174: Figure 6.10 Urbanisation of the bes
Page 175 and 176: Figure 6.11 Major components of the
Page 177 and 178: Within the same continent, large va
Page 179 and 180: Box 6.2 | Nutrient balances in urba
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Page 183 and 184: The quality of the soil’s water i
Page 185 and 186: At continental scales, the only pra
Page 187 and 188: Figure 6.16 (a) Global distribution
Page 189 and 190: Engineering in Japan, 5: 157-174. A
Page 191 and 192: Chadwick, D., Sommer, S., Thorman,
Page 193 and 194: Drechsel, Pay, Giordano, Mark, Gyie
Page 195 and 196: Gardner, T., Acosta-Martinez, V., C
Page 197 and 198: Hue, N.V. & Licudine, D.L. 1999. Am
Page 199 and 200: Liski, J., Ilvesniemi, H., Mäkelä
Page 201 and 202: Ng, H. 2010. Regional Assessment: S
Page 203 and 204: Reheis, M. 1997. Dust deposition do
Page 205 and 206: Smith, K.A., McTaggart, I.P. & Tsur
Page 207 and 208: United Nations. 2008. World Urbaniz
Page 209 and 210: Wood, M.K. & Blackburn, W.H. 1984.
Page 211 and 212: 7 | The impact of soil change on ec
Page 213: Rockström et al. (2009) suggest we
Page 217 and 218: One approach to maintaining soil he
Page 219 and 220: Author Database Used Extent Estimat
Page 221 and 222: salinization. Safe design and opera
Page 223 and 224: The second limitation to prediction
Page 225 and 226: Figure 7.6 Some soil-related feedba
Page 227 and 228: soils occurs on largely unmanaged a
Page 229 and 230: extremes several weeks in advance (
Page 231 and 232: The direct effect of aerosols on th
Page 233 and 234: capacity declines as N loads increa
Page 235 and 236: The concept of the critical load of
Page 237 and 238: as it indicates that management and
Page 239 and 240: 10-year frequency Ten-year frequenc
Page 241 and 242: phenomena such as the onset of mass
Page 243 and 244: Although poorly explored, diversity
Page 245 and 246: affect the health of humans and ani
Page 247 and 248: Bever, J.D., Westover, K.M. & Anton
Page 249 and 250: Damoah, R., Spichtinger, N., Servra
Page 251 and 252: Fenn, M.E., Poth, M.A., Aber, J.D.,
Page 253 and 254: Heimann, M. & Reichstein, M. 2008.
Page 255 and 256: Koster, R.D., Dirmeyer, P.A., Guo,
Page 257 and 258: Naeem, S., Bunker, D.E., Hector, A.
Page 259 and 260: Raufman, Y.J. & Fraser, R.S. 1997.
Page 261 and 262: Sheffield, J. & Wood, E.F. 2007. Pr
Page 263 and 264: UNEP. 2012. Policy Implications of
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8 | Governance and policy responses
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contemporary challenge for policy m
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Year 1982 FAO World Soil Charter 19
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Ensure integrated management of pes
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8.4 | Regional soil policies 8.4.1
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while in areas with fertile soils t
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In New Zealand, there are few regul
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The SEEA Central Framework identifi
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EC. 2013. Decision No 1386/2013/EU
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World Bank. 2011. Rising Global Int
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9.1 | Introduction Land degradation
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Figure 9.1 Agro-ecological zones in
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The soils are strongly weathered an
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It exposes the soil to the erosive
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In many African cultures, harvestin
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Maputo accounts for 83 percent of t
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Poverty: General poverty of the far
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Considering that over 80 percent of
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Extent of SOM decline in the region
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Many farmers do not follow recommen
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9.5 | Case studies 9.5.1 | Senegal
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Figure 9.7 Extent of dominant degra
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management, it is important to note
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From 2006, several further national
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Figure 9.12 Actual water erosion pr
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Figure 9.13 Topsoil pH derived from
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Figure 9.14 Change in land-cover be
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Waterlogging Compaction Soil sealin
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Birru, T.C. 2002. Organic matter re
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Hein, L. & De Ridder, N. 2006. Dese
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Meyer, J.H., Harding, R., Rampersad
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Smith P. 2008. Soil organic carbon
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10 | Regional Assessment of Soil Ch
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Figure 10.1 Length of the available
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Figure 10.2 Threats to soils in the
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10.3.4 | Soil acidification There i
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In paddy rice cultivation and uplan
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10.3.10 | Sealing and capping Seali
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practices. On low slopes, agronomic
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(Valentin et al., 2008). For peatla
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in Laos (59 kg N ha -1 ). On the ot
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Sub-Regions. Inceptisols are the do
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10.5.2 | Case study for Indonesia T
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Peat fire is another important proc
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An agricultural soil monitoring pro
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The Basic Soil-Environmental Monito
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Figure 10.8 Estimate CH 4 emission
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Threat to soil function Soil erosio
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References Aggarwal, G.C., Sidhu, A
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FAO. 2012. FAOSTAT. Rome, FAO. (Als
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Kukal, S.S. & Aggarwal, G.C. 2003.
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Piao, S., Fang, J., Ciais, P., Peyl
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Taniyama, I. 2003. Study of soil fa
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Zhao, Y., Duan, L., Xing, J., Larss
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11.1 | Introduction The majority of
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The internal stratification within
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Mediterranean zone This zone by def
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(5) Salinization and sodification I
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The real extent of diffuse soil con
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While there is no harmonised exhaus
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Prepared by I. Alyabina Figure 11.2
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This is due to the country’s geo-
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Future changes in climate and land
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Considering an increase of industri
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Comparison of cultivated soils with
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Figure 11.3 Some types and extent o
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The plains in the basins of Amu Dar
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Threat to soil function Soil sealin
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References Acosta, J.A., Faz, A., J
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Inisheva, L.I. (ed.). 2005. Concept
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van Lynden, G.W.J. 1997. Guidelines
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12.1 | Introduction This chapter di
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Figure 12.1 Biomes in Latin America
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Temperate Grasslands, Savannahs and
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humid. The most common soil groups
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12.3.6 | Compaction In LAC there ar
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New regional information has been g
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Primary forests have higher carbon
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Prepared by C. Cruz-Gaistardo Figur
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The salinity of soils on the cultiv
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Figure 12.6 Expansion of the agricu
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Figure 12.7 Percentage of areas aff
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Figure 12.8 Predominant types of la
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Boddey, R.M., Alves, B.J.R, Jantali
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Gardi, C., Angelini, M., Barceló,
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Nogueira, M.A., Albino, U.B., Brand
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Spavorek, G., Bemdes, G., Barreto,
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13 | Regional Assessment of Soil Ch
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The Arab Centre for the Study of Ar
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Poverty within this system is exten
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Wind erosion A review conducted by
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13.3.5 | Soil salinization/sodifica
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13.3.9 | Compaction Soil compaction
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13.4 | Major soil threats in the re
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In Sudan, studies showed that in ar
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2002). There are few studies on the
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Consequences of salinization Salini
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Rates of C change are influenced no
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Figure 13.3 Layout of the project s
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13.5 | Case studies 13.5.1 | Case s
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Studies show that both climatic and
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2 - Land degradation assessment map
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Figure 13.9 Type of ecosystem servi
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References Abahussain, A.A., Abdu,
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Badraoui, M. 1998. Effects of inten
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FAO. 2004. Regional Workshop on Pro
Page 481 and 482:
Mamdouh Nasr. 1999. Assessing Deser
Page 483 and 484:
Yaghi, B. & Abdul-Wahab, S.A. 2004.
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14.1 | Introduction Although Canada
Page 487 and 488:
The area of forested land in Canada
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14.3 | Soil threats This section fo
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Figure 14.2 Map of Superfund sites
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Figure 14.3 Areas in United States
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The drivers for soil sealing in Can
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14.4.1 | Soil erosion Soil erosion
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The relationship between soil prope
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14.4.4 | Soil biodiversity Soil bio
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Figure 14.5 Risk of water erosion i
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Figure 14.7 Soil organic carbon cha
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Figure 14.8 Residual soil N in Cana
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14.6 | Conclusions and recommendati
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Compaction Sealing and land take Sa
Page 513 and 514:
Clearwater, R.L., Martin, T., Hoppe
Page 515 and 516:
Kurz, W.A., Dymond, C.C., White, T.
Page 517 and 518:
USDA. 2011. Resource Conservation A
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15.1 | Introduction The Southwest P
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of the country. The undulating and
Page 523 and 524:
The broad area of Near Oceania (inc
Page 525 and 526:
Country and land-use driver Implica
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15.5 | Threats to soils in the regi
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egenerating soils. The South Island
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New Zealand The importance of soil
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Fertilizers Impurities in fertilize
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The main onsite effects of acidific
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Saltwater intrusion Saltwater intru
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Phosphorus is naturally deficient a
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Canterbury region. There has been a
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Figure 15.3 (a) Trends in winter ra
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Figure 15.5 Agricultural lime sales
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The management of water is also fun
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The DustWatch network Australia has
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Soil sealing and capping Contaminat
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Bui, E.N., Hancock, G.J. & Wilkinso
Page 555 and 556:
Hartemink, A.E. 1998b. Acidificatio
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Moorehead, A. (ed.). 2011. Forests
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Robertson, M.J., George, R.J., O’
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Wilson, B.R. & Lonergan, V.E. 2013.
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16.1 | Antarctic soils and environm
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16.3 | Response All activities in A
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IAATO. 2014. Tourism statistics. In
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Annex | Soil groups, characteristic
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a Photo by C. Tarnocai b Photo by S
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Figure A 2 (a) An Anthrosol (Plagge
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a Photo by P. Charzyński Figure A
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a Photo by A. Filaretova b Photo by
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Figure A 5 (a) A Leptosol profile i
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a Photo by L. Wilding b Photo by L.
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Figure A 7 (a) A Solonetz profile a
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a Photo by T. Toth b Photo by S. Kh
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Figure A 9 (a) A Podzol profile and
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FERRALSOLS (OXISOLS) Ferralsols (Fi
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NITISOLS (Alfisols, Ultisols, Incep
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PLINTHOSOLS (Plinthic sub-groups) P
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PLANOSOLS (Albaqualfs, Albaquults a
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GLEYSOLS (Aquic suborder and Endoaq
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STAGNOSOLS (Aquic Suborders and Epi
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ANDOSOLS (ANDISOLS) Andosols (Figur
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5 | Soils with accumulation of orga
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KASTANOZEMS (Ustolls and Xerolls) K
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PHAEOZEMS (Udolls and Albolls) Phae
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UMBRISOLS (Umbric Great Group in Aq
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6 | Soils with accumulation of mode
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CALCISOLS (Calcids, Argids, Cambids
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GYPSISOLS (Gypsids) Gypsisols are c
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7 | Soils with a clay-enriched subs
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ACRISOLS (Kan- great groups of Ulti
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LIXISOLS (Kan - great groups of Alf
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ALISOLS (Ultisols with an argillic
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LUVISOLS (Alfisols with an argillic
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8 | Soils with little or no profile
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REGOSOLS (Orthents) Regisols are th
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ARENOSOLS (Psamments) Arenosols are
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FLUVISOLS (Fluvents, Fluv-Subroups)
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9 | Permanently flooded soils WASSE
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Kastanozems Histosols Gypsisols Gre
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Jones, A., Breuning-Madsen, H., Bro
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Glossary of technical terms Aerobic
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Topsoil: the upper part of a natura
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Broll, Gabrielle Bruulsma, Tom Bunn
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Leys, John Lobb, David Ma, Lin Maci
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Urquiaga Caballero, Segundo Urquiza
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