Combined Effects of Straw Returning and Chemical N Fertilization on Greenhouse Gas Emissions and Yield from Paddy Fields in Northwest Hubei Province, China

2019 ◽  
Vol 20 (2) ◽  
pp. 392-406 ◽  
Author(s):  
Quanyi Hu ◽  
Tianqi Liu ◽  
Songsong Jiang ◽  
Cougui Cao ◽  
Chengfang Li ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
N Fertilization ◽  
Hubei Province ◽  
Paddy Fields ◽  
Combined Effects ◽  
Gas Emissions

scholarly journals Linking nitrogen load to the structure and function of wetland soil and rhizosphere microbial communities

2017 ◽  
Author(s):  
Eric R Hester ◽  
Sarah F. Harpenslager ◽  
Josepha MH van Diggelen ◽  
Leon L Lamers ◽  
Mike SM Jetten ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Amplicon Sequencing ◽  
N Fertilization ◽  
Wetland Soil ◽  
N Availability ◽  
Gas Emissions ◽  
16S Rrna Amplicon Sequencing ◽  
N Input

AbstractWetland ecosystems are important reservoirs of biodiversity and significantly contribute to emissions of the greenhouse gases CO2, N2O and CH4. High anthropogenic nitrogen (N) inputs from agriculture and fossil fuel combustion have been recognized as a severe threat to biodiversity and ecosystem functioning such as control of greenhouse gas emissions. Therefore it is important to understand how increased N input into pristine wetlands affects the composition and activity of micro-organisms, especially in interaction with dominant wetland plants. In a series of incubations analyzed over 90 days, we disentangle the effects of N fertilization on the microbial community in bulk soil and the rhizosphere ofJuncus acutiflorus, a common and abundant graminoid wetland plant. We observed an increase in greenhouse gas emissions when N is increased in incubations withJ. acutiflorus, changing the system from a greenhouse gas sink to a source. Using 16S rRNA amplicon sequencing and metagenomics, we determined that the bacterial orders Opitutales, Subgroup-6 Acidobacteria and Sphingobacteriales significantly responded to high N availability and we hypothesize that these groups are contributing to the increased greenhouse gas emissions. These results indicated that increased N input leads to shifts in microbial activity within the rhizosphere, severely altering N cycling dynamics. Our study provides a framework for connecting environmental conditions of wetland bulk and rhizosphere soil to the structure and metabolic output of microbial communities.

scholarly journals Improvement Potential of Life Cycle Greenhouse Gas Emissions from Paddy Fields: Assessing Influence of Sparse Transplanting and Non-puddling

2017 ◽  
Vol 51 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Motoko SHIMURA ◽  
Hidehiro TAKAHASHI ◽  
Chiharu ITO ◽  
Makoto SHIBUYA ◽  
Kiyotada HAYASHI ◽  
...  
Keyword(s):  
Life Cycle ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Paddy Fields ◽  
Gas Emissions ◽  
Improvement Potential

scholarly journals Estimating Greenhouse Gas Emissions from Irrigated Paddy Fields in Indonesia under Various Water Managements

2019 ◽  
Vol 557 ◽  
pp. 012034 ◽  
Author(s):  
Chusnul Arif ◽  
Budi Indra Setiawan ◽  
Nur Aini Iswati Hasanah ◽  
Masaru Mizoguchi
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Paddy Fields ◽  
Gas Emissions

Industrial wastes: Fly ash, steel slag and phosphogypsum- potential candidates to mitigate greenhouse gas emissions from paddy fields

Chemosphere ◽  
2020 ◽  
Vol 241 ◽  
pp. 124824 ◽  
Author(s):  
Smita S. Kumar ◽  
Amit Kumar ◽  
Swati Singh ◽  
Sandeep K. Malyan ◽  
Shahar Baram ◽  
...  
Keyword(s):  
Fly Ash ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Steel Slag ◽  
Industrial Wastes ◽  
Paddy Fields ◽  
Gas Emissions
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