01255nam a2200229Ia 450000100070000000500170000700800410002404000100006508200210007524502250009626001360032130000470045749000580050450000380056250400510060065000730065165000850072465000810080970000280089071000690091871000380098725208820200624062623.0011024e1999    xxuac  gr     000 0 eng d  aPUCPR00221a627.86bE27500aEffects of land use on upland erosion, sediment transport, and reservoir sedimentation, Lago Loíza Basin, Puerto Ricocby Allen C. Gellis ... [et al.] ; in cooperation with the Puerto Rico Aqueduct and Sewer Authority.  aSan Juan, P.R.bU.S. Dept. of the Interior, U.S. Geological SurveyaDenver, CObBranch of Information Services (distributor)c1999.  avii, 60 p.bill., maps (some col.)c28 cm. 0aWater resources investigations reportv99-40102Local  aone map on 1 folded leaf laid in.  aIncludes bibliographical references and index. 0aLand use, RuralzPuerto RicozCarraízo Reservoir Watershed.2Local 0aSedimentation and depositionzPuerto RicozCarraízo Reservoir Watershed2Local 0aReservoir sedimentationzPuerto RicozCarraízo Reservoir Watershed.2Local1 aGellis, Allen C.2Local2 aAutoridad de Acueductos y Alcantarillados de Puerto Rico.2Local  aGeological Survey (U.S.)  2Local