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degradation infographics percent fertilizer degraded surface theglobaleducationproject
soil degradation global human induced fao world map status maps land effects pollution environmental concern environment farming united soils damage
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desertification ppt powerpoint presentation 1233 grida level3 db maps prod soil
soil degradation world soils degraded conservation conditions ppt powerpoint presentation becoming regions many 1a figure
soil degradation chart arable factors ecosystem crops theglobaleducationproject rainfed irrigated hectares fertilizer
degradation land desertification erosion
degradation induced soils showing poorly
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soil fao world maps publishes threats day acidification
degradation land global millions displace earth
soil global health soils fao degradation agriculture nations organization united food assessment