Carbon Dynamics in Humic Fractions of Soil Organic Matter Under Different Vegetation Cover in Southern Tocantins
نویسندگان
چکیده
Abstract Soil organic matter has great importance in chemical, physical and biological processes soil-plant system. This study aimed to evaluate changes carbon humic fractions of soil under different vegetation coverings Cerrado Tocantins, Brazil. The work was developed Eucalyptus sp., Pasture, Agriculture sensu stricto areas. samples were collected dry period, October, 2018, trenches 70 x cm at depths 0-10, 10-20, 20-30, 30-40 40-50 cm, with six replications. cover sp. area showed higher levels total fraction. Respectively fulvic acid, acid humin had stocks 22.09; 2.71 20.01% than native forest, 32.04; 2.57 35.59% pasture 10.59; 19.19 7.61% the agriculture area. Among areas evaluated, potential increase storage fractions.
منابع مشابه
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ژورنال
عنوان ژورنال: Floresta e Ambiente
سال: 2021
ISSN: ['1415-0980', '2179-8087']
DOI: https://doi.org/10.1590/2179-8087-floram-2020-0024