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Desertification --- Control --- Congresses --- -504.732.052 --- Aridization of land --- Desertization --- Climatology --- Deserts --- -Congresses --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 --- Control&delete& --- Desertification - Control - China - Congresses
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Désertification --- Desertification --- Écosystème --- ecosystems --- Zone aride --- Arid zones --- Afrique --- Africa --- Arid regions agriculture --- -Arid regions agriculture --- -Desertification --- -504.732.052 --- Aridization of land --- Desertization --- Climatology --- Deserts --- Dryland agriculture --- Dryland farming --- Agriculture --- Crop zones --- Desert reclamation --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 --- Desertification.
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Environmental Sciences and Forestry. Soil Science --- Land degradation and Land conservation. --- 631.6.02 --- 504.732.052 --- 631.6.02 Soil and water conservation. Erosion control --- Soil and water conservation. Erosion control --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- Conferences - Meetings
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Nature protection --- Geology. Earth sciences --- General ecology and biosociology --- Desertification --- Soil degradation --- Maps --- Africa --- -Soil degradation --- -551.435.77 --- 504.732.052 --- Degradation, Soil --- Land degradation --- Aridization of land --- Desertization --- Climatology --- Deserts --- -Maps --- Types of desert --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 551.435.77 Types of desert --- Cartes --- Desertification - Maps. --- Soil degradation - Maps. --- Désertification --- Régions arides --- Sols --- Cartes. --- Dégradation --- Désertification --- Maps.
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Desertification --- 504.732.052 --- Lithospheric environment --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 504.5 Lithospheric environment --- Désertification --- #Hist.Geol --- 504.03 --- 504.5 --- 504.03 Social and socio-economical aspects of human influences on the environment. Social ecology. Ecological economics --- Social and socio-economical aspects of human influences on the environment. Social ecology. Ecological economics
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504.732.052 --- 630*26 --- 631.458 --- 631.459 --- 631.458 Impoverishment of soil. Soil exhaustion --- Impoverishment of soil. Soil exhaustion --- 630*26 Combinations of forestry with agriculture and pastoral husbandry. Irrigated and floodland forests. Shelterbelts etc. and their treatment. Agroforestry --- Combinations of forestry with agriculture and pastoral husbandry. Irrigated and floodland forests. Shelterbelts etc. and their treatment. Agroforestry --- 504.732.052 Overexploitation of terrestrial vegetation. Desertification. Desert formation --- Overexploitation of terrestrial vegetation. Desertification. Desert formation --- 631.459 Erosion --- Erosion --- Environmental Sciences and Forestry. Forestry --- Agroforestry. --- agroforestry --- Désertification --- Desertification --- Dégradation --- degradation --- environment --- Desertification. --- degradation. --- Lutte --- Cta
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