detritusdetritus chamberdeuterium oxidedeveloped lengthdevelopmentdewdew pointdewaterdewateringdiagentic changesdiagnostic horizonsdiagnostic subsurface horizonsdiagnostic surface horizonsdiagonaldiagonal silldiagramdiaphragm wallingdiatomasdiatomas earthdiazotrophdichotomydifferential erosiondifferential meterdiffiussion processdiffractiondiffusediffuse double layerdiffuse frontdiffuse radiationdiffuse sky radiationdiffused surface waterdiffusiometerdiffusiondiffusion analogy methoddiffusion equationdiffusion theorydiffusion velocitydiffusivitydiffusivity coefficientdigestiondigitaldigital elevation modelsdigital memorydigital modelsdigital simulationdikediluationdiluentdilutiondilution gaging