Resumen
This document presents a method to quantify the soil organic carbon and nitrogen stocks in mineral soils at plot scale. It also provides guidance on how to detect and quantify simultaneously the variations of carbon and nitrogen stocks over time in mineral soils at field scale. It is based on several documents already published[2],[3],[4],[5],[6],[7],[8].
This document does not apply to organic soils, soils with permafrost, wetland soils, or to soil layers prone to submergence below the groundwater table.
NOTE聽1聽聽 The possibility of increasing soil C storage is viewed as a means to sequester atmospheric carbon dioxide (CO2) and mitigate greenhouse gas (GHG) emissions. Information on soil nitrogen (N) stocks is crucial because it interacts with carbon cycling through plant nutrition and organic matter decomposition, and leakage of N is of environmental concern (e.g. N2O emissions, NO3- leaching). Therefore, it is becoming increasingly important to measure accurately the impact of changes of land uses and practices on organic carbon and nitrogen stocks.
NOTE聽2聽聽 While understanding changes in soil inorganic carbon it is important also to understand the land-atmosphere exchange of CO2, measuring stocks of soil inorganic carbon is outside the scope of this document.
Informaciones generales
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Estado: PublicadoFecha de publicaci贸n: 2021-10Etapa: Norma Internacional publicada [60.60]
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贰诲颈肠颈贸苍: 1N煤mero de p谩ginas: 21
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颁辞尘颈迟茅 T茅cnico :香港六合彩开奖/TC 190ICS :13.080.01
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Esta norma contribuye a
- Lograr la neutralidad clim谩tica: Mitigaci贸n / Emisiones de GEI;
Ciclo de vida
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