eroziunea solului

conferences agri-foodstuffs ferme familiale politica nationala fruit trees rural environment tari in curs de dezvoltare clima pompe desastres naturels geographie physique eau calitatea apei cartographie terre agricole natural disasters structure agricole seceta productie agricola humidite conception soil improvement publications en serie vegetation developpement agricole mapping instrumente de masura ameliorarea solurilor conservarea solului hydrographie cartografie pumps qualite de l'eau canale de irigatie efficacite agricultural development field research ecologie humaine orez pays en developpement industrializare volcanic eruptions conferinte risk cultures agricoles case studies inondations polyculture teren agricol geomorfologie measuring instruments regiune montana bazine environnement ressources naturelles cartes geographiques water quality vulcanology water biodiversitate seisme vegetables manuale croissance economique research methods basins civilisation research dams pollution level politica culturi agricole geomorphologie baraje eruptions volcaniques pompes mise en valeur des terres secheresse environmental protection hidrografie grasses instruments de mesure furaj ierburi ressources agricoles conservation du sol recherche studii de caz geografie fizica ressources energetiques sedimentation zona montana fertilizare mountain region inevestissements agriculture politique international relations rivers developpement durable economic conditions cours d'eau pollution fodder social conditions region de montagne mediu natural situation economique conditii sociale physical environment lakes protectia mediului resurse naturale climat irigatii geomorphology governance nivelul poluarii resurse de sol risc legislation temperature developpement rural eruptii vulcanice petrole manuels irrigation canals cereals floods ingrasamant natural exploitations agricoles familiales economy barrages soil resources mediu inconjurator inundatii reforme economique financing crops conditii economice demography serials dezvoltare rurala fertilizator organic temperatura land development gouvernance harti arbres fruitiers energie dezvoltare durabila design construction multiple cropping milieu rural geology legumes soil conservation recherche sur le terrain soils cattle production gestion de l'environnement agricultural production vulcanologie humidity degradarea solului eficienta economic analysis amelioration des sols agricultural land lacs climate energy apa fertilisation canaux d'irrigation risque irrigation proiectare developing countries geologie demografie pomi fructiferi soluri situatie economica sols rural development dezastre naturale soil degradation metode de cercetare crestere economica ecosystems faim natural resources ecosisteme national policy cours polycopies manuals politique nationale biodiversity investitii family farms umiditate mediu rural industrialization erosion du sol economic reform grasslands cereale pasuni oceane eroziunea solului produs agro-alimentar dezvoltarea agriculturii foamete conducte relatii internationale soil erosion propriete fonciere cereales publicatii periodice Chine efficiency finantare resurse agricole maps tehnologie agricola protectia solului managementul mediului China agroalimentaire rice demographie physical geography land ownership hydrography ecologie legume cresterea vitelor reforma economica cursuri de apa civilization developpement economique human ecology ecology resurse energetice riz petrol politics agricultural resources dezvoltare economica hunger environnement physique analyse economique fertilizing conditions economiques environment genie agricole relations internationales studii de teren petroleum financement degradation du sol civilizatie ecologie umana economie sustainable development constructie bassins drought production de betail biodiversite economic situation lacuri legislatie cercetare structura agricola least developed countries methodes de recherche herbages ecosystemes valorificarea terenurilor course papers agricultura precipitation economic growth teze de doctorat analiza economica vegetatie conditions sociales environmental management pays les moins avances investment seismes fourrage economic development agricultural engineering poluare seisms engrais organique precipitatii energy resources tari subdezvoltate oceans policultura etudes de cas pipelines proprietate funciara industrialisation sedimentare ressources en sol production agricole cursuri multigrafiate agricultural structure niveau de pollution organic fertiliser herbes guvernare protection de l'environnement