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    GB 19377-2003 - 中外标准 - - 2003/11 - 现行
    本标准规定了天然草地退化、沙化、盐渍化的级别和指标。本标准适用于天然草地退化、沙化、盐渍化的等级划分。
    草皮畜牧业天然草地沙化盐渍化退化分类系统classification systemsclassification systemturfanimal husbandry
  • ISO 16586-2003 - 中外标准 - - 2003/4 - 现行
    This International Standard specifies a method for the gravimetric determination of soil water content as a volume fraction on the basis of the ratio of measured water content mass to known dry bulk density. This International Standard is applicable to all types of non-swelling or non-shrinking soils. It is used as a reference method (e.g. the calibration of indirect methods for determination of water content).
    方法定义地下水土壤组分土壤干散密度含水量质量测定含量测定干燥水力(利)工程固态物质水量土壤分析水常规水含量测定一份重量分析土壤试验土壤水分体积Composition of the groundDefinitionsDeterminationDetermination of contentDetermination of water contentDry bulk densityDryingGravimetric analysisGround waterHydraulic engineeringMethodsPortionQualityQuantity of waterSoil analysisSoil testingSoil waterSoilsSolid matterVolumeWaterWater contentWater practice
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