Special Issue "Agricultural Greenhouse Gas Emissions (2nd Volume)"

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".

Deadline for manuscript submissions: closed (29 March 2023) | Viewed by 770

Special Issue Editor

Department of Soil Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
Interests: soil fertility; greenhouse gases; nutrient cycling; rhizosphere; nitrogen and phosphorus fertilizers; micronutrients; 4R nutrient stewardship
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The mitigation of greenhouse gas (GHG) emissions is important in the quest to alleviate human-induced climate change. Agricultural activities such as the application of synthetic and organic nutrients, tillage, and enteric fermentation contribute 10–14% of global anthropogenic GHG emissions, including carbon dioxide, nitrous oxide, and methane. In recent years, much research work has been done around the world in exploring the mechanisms of GHG production/emissions/transfer processes and developing effective measures for the mitigation of GHG emissions from agricultural systems.

This Special Issue is a follow-up of the first Special Issue entitled “Agricultural Greenhouse Gas Emissions” (https://www.mdpi.com/journal/atmosphere/special_issues/agricultural_greenhouse_gas). The aim is to enhance our scientific understanding of GHG emissions from agricultural systems and to use such information to develop the best management practices (BMPs) to minimize GHG emissions while maintaining agricultural production.

Original research, systematic review, meta-analysis, and model studies related to the theme of agricultural greenhouse gas emissions are welcome. Example topics include, but are not limited to, the following:

  • Effect of agricultural management practices (fertilization, tillage, crop rotation, irrigation/drainage, animal/green manure, biochar, etc.) on GHG emissions from agricultural production systems;
  • Laboratory or field studies investigating GHG emissions from soil freeze–thaw cycles;
  • Meta-analyses of strategies to reduce GHG emissions;
  • Development of techniques in measurement and estimation of GHG emissions;
  • Reduction of GHG emissions from the enteric fermentation and livestock production systems;
  • Model approaches in estimating GHG emissions at regional or global scales;
  • Benefit–cost analysis of GHG emissions.

We very much look forward to receiving your submissions.

Best regards,

Dr. Xiaopeng Gao
Guest Editor

Manuscript Submission Information

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  • greenhouse gases
  • best management practices
  • agroecosystem
  • CO2, CH4, and N2O
  • meta-analyses
  • modeling approach

Published Papers (1 paper)

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Long−Term Fertilization Increased Nitrous Oxide Emissions from Croplands Reclaimed from Desert
Atmosphere 2022, 13(11), 1897; https://doi.org/10.3390/atmos13111897 - 13 Nov 2022
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Few studies have investigated how the reclamation of the desert to cropland affects soil nitrous oxide (N2O) emissions. A study site was initiated in 2005 at the southern Taklimakan Desert by establishing four fields along the desert−oasis ecotone. Three fields were [...] Read more.
Few studies have investigated how the reclamation of the desert to cropland affects soil nitrous oxide (N2O) emissions. A study site was initiated in 2005 at the southern Taklimakan Desert by establishing four fields along the desert−oasis ecotone. Three fields were reclaimed as croplands for continuous cotton (Gossypium hirsutum L.) production and received (1) high, (2) low, and (3) no fertilizer inputs and the fourth field remained as a native desert. Static-chamber monitoring of N2O flux was conducted from April 2019 to March 2021. N2O emissions occurred in cropland mainly after drip fertigation during the growing season. The two−year N2O emissions in the desert, no fertilizer, low fertilizer, and high fertilizer were 248, 670, 2232, and 3615 g N ha−1, respectively. The native desert was a weak source of N2O emissions, with the non−growing season emissions accounting for 66% of the annual emissions. N2O emissions from farmland mainly occurred over the growing season, accounting for 73−98% of the total annual emissions. The N2O flux was positively related to soil NO3−N concentration and soil water−filled pore space (WFPS), highlighting the importance of soil N availability and moisture in affecting N2O emissions in extremely arid areas. Our results demonstrate that land reclamation from the desert to cropland significantly increased N2O emissions due to high nutrient inputs. Thus, appropriate fertilizer management in the reclaimed land is essential for maintaining yield, improving soil quality, and reducing N2O emissions for continuous cotton production. Full article
(This article belongs to the Special Issue Agricultural Greenhouse Gas Emissions (2nd Volume))
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