Transformation of <i>n</i>-alkanes from plant to soil: a review
نویسندگان
چکیده
Abstract. Despite the importance of soil organic matter (SOM) in global carbon cycle, there remain many open questions regarding its formation and preservation. The study individual compound classes that make up SOM, such as lipid biomarkers including n-alkanes, can provide insight into cycling bulk SOM. While studies biomarkers, particularly have increased number past few decades, only a limited focused on transformation these compounds following deposition archives. We performed systematic review to consolidate available information plant-derived n-alkanes their from plant soil. Our major findings were (1) nearly ubiquitous trend decreased total concentration either with time litterbag experiments or depth plant–soil systems (2) preferential degradation odd-chain length shorter chain represented by decrease preference index (CPI) odd-over-even predominance (OEP) depth, indicating n-alkane signal shift vegetation composition over time. also highlighted lack data transparency standardization across making analysis synthesis published time-consuming difficult. recommend community move towards more uniform reporting biomarker data. Furthermore, examining complete leaf–litter–soil continuum is very well unevenly distributed geographical regions, climate zones, types, future collection should focus underrepresented areas quantifying through
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ژورنال
عنوان ژورنال: Soil
سال: 2021
ISSN: ['2199-398X', '2199-3971']
DOI: https://doi.org/10.5194/soil-7-785-2021