acidrain acidsoils agricultural agriculturalecology agriculture agronomy aménagement anhuisheng artists'materials aspectdel'environnement atténuation australia bioremediation bodenkunde botany changements china climat climatechangemitigation climaticchanges congresses conservation cropsandsoils cropscience dégradation economicaspects engineering environmentalaspects environmentalconservation environmentaldegradation farms forestmanagement forestsoils general history humus landuse lifesciences matérield'artistes naturalresources nature nitrogencycle organicfarming petitesexploitationsagricoles phytoremediation protection rb10158 ruraldevelopment science smallfarms soilacidity soilandcivilization soilconservation soildegradation soildynamics soilecology soilremediation soils soilsandclimate soilscience solo(manejoeconservacao) sols solsetclimat southernstates sulfurcycle sustainableagriculture technology tropics water-supply waterqualitymanagement écologieagricole