La degradación del suelo por erosión hídrica en cultivos de granos básicos y café en la microcuenca Torjá, cuenca del río Grande de Zacapa, Guatemala.

G O Quinonez Berganza, M M Barriga Machicao, J J Campos Arce, C Morales Sanchez,W A Zury Rojas, Y C Zapata Arango, H Kammerbauer,J Leon, N Castellon, Sebastian Portillo Gomez, Jose Gonzalez, J Faustino, K Prins, A Baltodano Fuentes,N M Veas Ayala, E J Cotto Guzman,A R Martinez Cano,J A Ponce Salgado, A S Gonzalez Mantilla,J A Mamani Gomez,D A Segura Ramos, K Torres Guerra,C Villanueva, M Lopez Soriano, E G Moya, R Babilonia Estrada,A H Portilla Claudio,Anders Jagerskog, J Granit, A Risberg, Wei Yu, F Gomez Delgado,Olivier Roupsard,G Le Maire, S Taugourdeau,A Perez,M Van Oijen,P Vaast, B Rapidel, J M Harmand,Marc Voltz, J M Bonnefond,P Imbach,Roger Moussa, C A Chaluleu Baeza,G C Villamagua Vergara, G Corzo Mora, W Ramirez Hernandez, B Salamanca Solarte, M C Londono Murcia, C Fonseca Tobian, C Suarez, C Alcazar Caicedo, C A Lasso Alcala, H Garcia Martinez,Christian Prins, M E Vela Enriquez,Federico Garcia Jimenez, C L Del Castillo Quintero, A C Orellana Zelaya, Y Gutierrez Rojas, S Velasquez Mazarriego, E Carbono De La Hoz, D P Garcia Perdomo, A A Diaz Briones, B Locatelli, R Vignola,C Perez, A Del Campo Parra Lara, F Nunez, G Hernandez R, A Ruiz H, G Barrantes C,Jairo N Diaz, A M Mezomo,W C Gonzalez Carrasco,H I Gonzalez Brioso, L Orozco Vilchez, D Montenegro, R Teruel, C J Jara,R Gomez Garciapalao, O Matus

mag（2012）

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watershed management,degradation,evaluation,hygiene,cooperation,cout,sustainability,land use planning,planning,policies,forest management,landscape,soil conservation,capital social,logging,profitability,combustible,food security,hydrological cycle,drainage,social participation,environmental management,financing,groundwater recharge,analisis,management,resource management,runoff,forests,governance,regulations,fauna,nature reserves,wastewater treatment,diagnosis,water use,analysis,crop yield,marketing,zoning,adaptation,animal husbandry,environmental impact,hydrology,sol,erosion,simulation models,flora,sustainable development,population ecology,petroleum,water conservation,water resources,health,landslides,water supply,investment,demand,opportunity costs,environmental protection,ecosystems,land use,agroforestry,climatic change,greenhouse gases,soil degradation,species,environmental impact assessment

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