Emission of greenhouse gases from Indian wetlands: an overview

Abbasi, S. A.; Dhanuja, C.

doi:10.1007/s42965-021-00165-2

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…Agricultural drainage ditches are an important part of terrestrial freshwater systems and agricultural ecosystems, serving as the main conduit for non-point source pollution discharge, and their greenhouse gas emissions cannot be ignored [4,5]. Agricultural drainage ditches are akin to linear wetlands, and research into their pollution load and greenhouse gas emission patterns is still insufficient [6][7][8][9]. Current research often focuses on the processes of greenhouse gas emissions and the physicochemical properties of water bodies in wetlands and rivers [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Nitrogen Input and Aeration on Greenhouse Gas Emissions and Pollutants in Agricultural Drainage Ditches

Zhang,

Wu,

Guo

et al. 2024

Agronomy

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Understanding the patterns of greenhouse gas emissions and the changes in pollution load in terrestrial freshwater systems is crucial for accurately assessing the global carbon cycle and overall greenhouse gas emissions. However, current research often focuses on wetlands and rivers, with few studies on agricultural drainage ditches, which are an important part of the agricultural ecosystem. Investigating the greenhouse gas emission patterns and pollution load changes in agricultural drainage ditches can help accurately assess the greenhouse effect of agricultural systems and improve fertilization measures in farmlands. This study explored the effects of nitrogen input and aeration on the pollution load and greenhouse gas emission processes in paddy field drainage ditches. The results showed that aeration significantly reduced the concentration of ammonium nitrogen (NH4+) in the water, decreased the emissions of nitrous oxide (N2O) and methane (CH4), and slightly increased the emission of carbon dioxide (CO2), resulting in an overall reduction of the global warming potential (GWP) by 34.02%. Nitrogen input significantly increased the concentration of ammonium nitrogen in the water, slightly reduced the emissions of N2O and CH4, and increased the CO2 emissions by 46.60%, thereby increasing the GWP by 15.24%. The drainage ditches reduced the pollution load in both the water and sediment, with the overall GWP downstream being 9.34% lower than upstream.

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Section: Introductionmentioning

confidence: 99%

“…Moreover, studies have shown that a large amount of greenhouse gases are emitted during the pollutant purification process [8,21], and these emissions are closely related to the nitrogen content in the soil [22,23]. Water quality and dissolved oxygen content are also important factors affecting greenhouse gas emissions [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Input and Aeration on Greenhouse Gas Emissions and Pollutants in Agricultural Drainage Ditches

Zhang,

Wu,

Guo

et al. 2024

Agronomy

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Assessment of Methane Emission and the Factors That Influence It, from Three Rice Varieties Commonly Cultivated in the State of Puducherry

et al. 2022

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India being the world’s second largest cultivator of paddy, it is very important that the extent of the resulting methane emissions is estimated, and steps are taken to minimize these emissions. Peninsular India is a prime rice-producing region; however, no significant information is available on the contribution of this region to methane emissions, nor are there available studies that show the effect of cultivars, growth seasons, soil characteristics, etc., on methane emissions. As one of the attempts to cover this knowledge gap, emissions of methane from paddy fields, situated in four villages of Puducherry, India, involving three rice cultivars, three soil types and two growth seasons have been studied. All the fields had a continuously flooded pattern of irrigation with water supplied at a rate of 11,500–20,000 m3/ha. Whereas the cultivars ADT 39 and ADT 45 generated the highest methane flux during their reproductive phase, with lesser emission during the vegetative phase and much less during maturity, CO 45 exhibited copious methane emissions during the vegetative phase, with several orders of magnitude lesser emission during the reproductive and the maturity phases. These trends were independent of the location of the field and soil type, though the absolute and the relative values of the emissions varied from location to location. Irrespective of the cultivar, the quantities of methane emission increased linearly with soil temperature across the day but decreased exponentially as soil pH increased beyond 7.

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Emission of greenhouse gases from Indian wetlands: an overview

Cited by 2 publications

References 21 publications

Effects of Nitrogen Input and Aeration on Greenhouse Gas Emissions and Pollutants in Agricultural Drainage Ditches

Effects of Nitrogen Input and Aeration on Greenhouse Gas Emissions and Pollutants in Agricultural Drainage Ditches

Assessment of Methane Emission and the Factors That Influence It, from Three Rice Varieties Commonly Cultivated in the State of Puducherry

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