A1层AIhorizonA2层A2horizonABC型土ABCsoilAC型土ACsoilAG型土AGsoilAo层AohorizonAp层AphorizonA层AhorizonBC型土壤BCSoilB层BhorizonC层ChorizonG层GhorizonH层HlayerL层LlayerpF曲线pFcurvepF值pFvaluepH值pHValueU形沟蚀U-shapedgullyingV式节制坝V-typecheckdamV形沟蚀V-shapedgullingV形拖板V-dragX线分光分析X-rayspectrophyX线绕射分析X-xaydiffractionmethody次量养分元素,Secondarynutrientelement(即Secondaryessentialelement安定粒团Stableaggregate氨态氮Ammoniealnitrogen胺化作用Aminization暗Dark(指Soilcolour暗渠排水Closedditchdrainage暗色火山灰土Andosoil白垩土Chalksoil白毛微法Cunninghemellaplaquetest斑点Mottling半定域土Semizonalsoil半润度含水量Moisturecontentat50%relativehumidity半沼泽土Halfbogsoil(同Marshbordersoil)榜纹Streak剥蚀作用Exfoliation保土坝Soilsavingdam保土调查Soilconservationsurvey保土局Soilconservationservice(U
)保土作物soilprotectivecrop保土作物Soilconservingcrop饱和度Degreeofsaturation饱和渗透度Saturatedpermeability饱和水流