Combining reference trials, farm surveys and mathematical models to assess carbon footprint and mitigation measures in tropical agriculture

Morales, Ángel Amor; Zorogastúa, C Percy; Feliciano, Diana; Mendiburu, D Felipe de; Quíroz, Roberto

doi:10.1016/j.aoas.2019.12.002

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…Studies have shown that agricultural sources account for about 14% of total anthropogenic greenhouse gas emissions [6]. In China, agriculture greenhouse gas emissions made up 17% of the total national greenhouse gas emissions [7]. The life cycle assessment method focuses on tracking and quantifying the environmental effects of a crop throughout its life cycle, from processing and transportation of agricultural inputs to field production and post-harvest [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Reducing the carbon footprint of maize cultivation in the Shanxi province could be accomplished in part by enhancing organic carbon sequestration and applying reasonable fertilizer [14]. Ramaa et al found that 77% of the total agricultural greenhouse gas emissions came from carbon emissions generated during fertilizer production and transportation when analyzing the carbon emission structure of tropical crop production, causing great pollution to the atmospheric environment [7]. Fertilizers account for 90% of the total carbon input in the carbon footprint composition of maize production in Northeast China, according to an analysis of the production of the carbon footprint of major grain crops in the Heilongjiang, Jilin, and Liaoning provinces of China between 2004 and 2013 [15].…”

Section: Introductionmentioning

confidence: 99%

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Interannual Evolution Characteristics of the Carbon and Nitrogen Footprints of Maize Production in Inner Mongolia

Liang,

Cheng,

Zhao

et al. 2024

Agronomy

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As the third-largest maize-producing province in China and a typical arid and semi-arid region, quantitatively evaluating the carbon and nitrogen footprints of maize production and their dominant factors is of great significance in guiding the high-yield, low-carbon, and sustainable development of maize production in the Inner Mongolia Autonomous Region. This study quantitatively evaluated the interannual evolution characteristics of the carbon and nitrogen footprints in maize production and their dominant factors in Inner Mongolia from 2003 to 2022 based on statistical yearbook data and emission parameter models. The results showed that from 2003 to 2022, the maize planting area, yield, and total yield in Inner Mongolia all increased, with an average annual increase of 97 kg ha−1 in yield and 1.23 × 106 Mg in total yield. The carbon and nitrogen footprints of Inner Mongolia maize production over the past 20 years had overall decreasing trends, while the nitrogen fertilizer bias productivity, net ecosystem carbon balance, and sustainability index had increasing trends. Carbon footprint reduced by an average of 5.2 kg CO2 eq Mg−1 per year, and nitrogen footprint reduced by an average of 0.21 g N eq kg−1 per year. Currently, the transportation and production of fertilizer and field application of N fertilizer are the main controlling factors of GHG emissions from maize production. NO3−-N, NH4+-N leaching, and NH3 volatilization from field application of N fertilizer are the main sources of reactive N losses. The application of simplified processes, such as phased regulation of nitrogen and controlled-release fertilizers, as well as conservation tillage, have broad prospects for emission reduction in maize production in Inner Mongolia.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%