Open AccessOrganic carbon in soils with different systems of use in Tacarimena Yopal, Colombia
Author(s) -
Blanca N. Carvajal-Agudelo,
Hernán J. Andrade
Publication year - 2021
Publication title -
revista u.d.c.a actualidad and divulgación científica/revista udca actualidad and divulgación científica
Language(s) - English
Resource type - Journals
eISSN - 2619-2551
pISSN - 0123-4226
DOI - 10.31910/rudca.v24.n1.2021.1921
Subject(s) - soil carbon , environmental science , livelihood , biomass (ecology) , land use , total organic carbon , soil water , carbon sequestration , greenhouse gas , carbon fibers , climate change mitigation , agroforestry , agronomy , carbon dioxide , mathematics , soil science , agriculture , environmental chemistry , ecology , chemistry , biology , algorithm , composite number
Soil is an important carbon reservoir as it can store twice the amount that atmosphere does and three times the biomass, which makes it a key component for climate change (CC) mitigation projects. It is important to know the potential of soil organic carbon storage (SOC) in the main uses of the soli and their expected dynamics due to potential use changes. SOCS is estimated in 7 of the dominant land use systems in the area of the study, with 5 replicas as follows: 1) banana with shade (SAF+banana); 2) cocoa with shade (Ca+S); 3) citrus (C); 4) low silvopastoral system (SSPB); 5) high silvopastoral system (SSPA); 6) gallery forests (BG); and 7) bush forest (MM). SOC concentration was analyzed in samples composed of 25 soil sub-samples per plot, and the DA was estimated with the cylinder method in a simple per plot. All land uses studied can mitigate CC when storing SOC. BG was the system that showed the highest carbon storage. On the other hand, SAF+banana stored the least SOC (72,7 vs 33,4Mg/ha, respectively). Changes in land use can cause CO2 emissions or an addition in carbon fixation. Changes in land use that increase SOC allow CC mitigation, which makes them feasible for funding, thus allowing an improvement in the livelihood of local producers.