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Using silvopastoral systems for the mitigation of greenhouse gas emissions from livestock in the Colombian Amazon
Agroforestry Systems ( IF 2.2 ) Pub Date : 2023-10-21 , DOI: 10.1007/s10457-023-00912-5
Henry Mavisoy , Adrian Rolando Riascos Vallejos , Juan Pablo Narváez-Herrera , Álvaro Sánchez , David Fangueiro , André M. de Almeida

Silvopastoral systems (SPS) are strategic in neutralizing greenhouse gases (GHG) emissions in livestock production systems, particularly in the tropics. This research assessed the mitigation potential of SPS on the carbon footprint (CFP) neutralizing in one integrated livestock farm of cow-calf and pig production system in the Colombian Amazon. Annual carbon accumulation rate (ACAR) in MgCO2e ha−1y−1, was evaluated on living above-ground biomass including trees and shrubs > 2 cm DBH and pasture, and leaf litter and below-ground biomass including coarse and fine roots, soil organic carbon 0–10 cm deep, and total ACAR adding up all components in live fences (LF), scattered trees (ST), fallows (FW), fodder bank (FB) and pastures (PT). The GHG emissions in MgCO2e ha−1y−1 were accounted in CO2 from liming, urea, fuel, electricity, and supplementation, CH4 from enteric methane, manure, and organic fertilization and N2O from urine and manure. The C balance was obtained from the differences between ACAR of SPS on farm and the CFP per surface. Mean total ACAR expressed in MgC ha−1y−1 were 9.0 ± 4.6 in FW, 7.0 ± 1.2 in LF, 5.5 ± 0.8 in ST, 4.2 ± 0.2 in FB and 2.9 ± 0.1 in PT. Mean CFP was 3.7 MgCO2e ha−1y−1, 5.3 MgCO2e Live Weight ha−1y−1, and 23.6 MgCO2e Live Weight Gain y−1. The CFP (area) can be neutralized with total ACAR value of 2.1 ha−1 for LF, 1.6 ha−1 for FW, 2.6 ha−1 for ST, 3.5 ha−1 for FB and 5.1 ha−1 for PT. The Silvopastoral systems have a higher potential for neutralizing GHG emissions than pasture-based scenario when considering the ACAR in above-ground biomass.



中文翻译:

利用林牧系统减少哥伦比亚亚马逊地区牲畜的温室气体排放

林牧系统 (SPS) 对于中和畜牧生产系统中的温室气体 (GHG) 排放具有战略意义,特别是在热带地区。这项研究评估了 SPS 对哥伦比亚亚马逊地区一个由牛犊和生猪生产系统组成的综合畜牧场的碳足迹 (CFP) 中和的缓解潜力。MgCO 2 e ha −1 y −1中的年碳积累率 (ACAR)是根据活体地上生物量(包括直径 > 2 cm 的树木和灌木和牧场)以及落叶层和地下生物量(包括粗根和细根)进行评估的,0-10厘米深的土壤有机碳,以及将活围栏(LF)、分散树木(ST)、休耕地(FW)、饲料库(FB)和牧场(PT)中所有成分相加后的总ACAR。MgCO 2 e ha -1 y -1中的温室气体排放量计入来自石灰、尿素、燃料、电力和补充物的CO 2、来自肠道甲烷、粪便和有机肥料的CH 4以及来自尿液和粪便的N 2 O。C 平衡是根据农场 SPS 的 ACAR 与每个表面的 CFP 之间的差异获得的。以MgC ha -1 y -1表示的平均总ACAR在FW中为9.0±4.6,在LF中为7.0±1.2,在ST中为5.5±0.8,在FB中为4.2±0.2,在PT中为2.9±0.1。平均CFP为3.7 MgCO 2 e ha -1 y -1、5.3 MgCO 2 e 活重ha -1 y -1和23.6 MgCO 2 e 活重增加y -1。CFP(面积)可以用总ACAR值2.1 ha -1 (LF)、1.6 ha -1 (FW)、2.6 ha -1 (ST)、3.5 ha -1 (FB)和5.1 ha -1 (PT)来中和。当考虑地上生物量的 ACAR 时,林牧系统比牧场情景具有更高的中和温室气体排放潜力

更新日期:2023-10-21
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