Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields

2020 ◽  
Vol 718 ◽  
pp. 137407 ◽  
Author(s):  
Mengyao Li ◽  
Lihong Xue ◽  
Beibei Zhou ◽  
Jingjing Duan ◽  
Zhu He ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Domestic Sewage ◽  
Paddy Fields ◽  
Gas Emission ◽  
Different Sources

scholarly journals Effects of Green Manure Application and Prolonging Mid-Season Drainage on Greenhouse Gas Emission from Paddy Fields in Ehime, Southwestern Japan

Agriculture ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 29 ◽  
Author(s):  
Yo Toma ◽  
Nukhak Nufita Sari ◽  
Koh Akamatsu ◽  
Shingo Oomori ◽  
Osamu Nagata ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Green Manure ◽  
Greenhouse Gas Emission ◽  
Rice Paddy ◽  
Paddy Fields ◽  
N2o Emissions ◽  
Gas Emission ◽  
Manure Application ◽  
Ch4 And N2o ◽  
Rice Paddy Fields

Green manure application helps maintain soil fertility, reduce chemical fertilizer use, and carbon sequestration in the soil. Nevertheless, the application of organic matter in paddy fields induces CH4 and N2O emissions. Prolonging mid-season drainage reduces CH4 emissions in paddy fields. Therefore, the combined effects of green manure application and mid-season drainage prolongation on net greenhouse gas emission (NGHGE) were investigated. Four experimental treatments were set up over a 2-year period: conventional mid-season drainage with (CMG) and without (CM) green manure and prolonged (4 or 7 days) mid-season drainage with (PMG) and without (PM) green manure. Astragalus sinicus L. seeds were sown in autumn and incorporated before rice cultivation. No significant difference in annual CH4 and N2O emissions, heterotrophic respiration, and NGHGE between treatments were observed, indicating that green manure application and mid-season drainage prolongation did not influence NGHGE. CH4 flux decreased drastically in PM and PMG during mid-season drainage under the hot and dry weather conditions. However, increasing applied carbon increases NGHGE because of increased CH4 and Rh. Consequently, combination practice of mid-season drainage prolongation and green manure utilization can be acceptable without changing NGHGE while maintaining grain yield in rice paddy fields under organically managed rice paddy fields.

scholarly journals The Carbon Footprint of a Public Sector University Before and During the COVID-19 Lockdown.

2022 ◽  
Keyword(s):  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Greenhouse Gas Emission ◽  
Waste Generation ◽  
Gas Emission ◽  
Direct Sampling ◽  
Questionnaire Surveys ◽  
One Year ◽  
Different Sources ◽  
Carbon Dioxide Equivalent

<p>Carbon footprint (CF) is a measure of greenhouse gas emissions generated from daily human-induced activities as carbon dioxide equivalent. This study is an attempt to represent a consumption-based CF study from the scope of transportation, electricity, and waste generation for University of the Punjab (PU), Lahore under the WRI/WBCSD greenhouse gas protocol corporate standards. Data acquired through fieldwork, questionnaire surveys, direct sampling, and existing records for the year 2019-20 suggested that electricity is the greatest contributor of CO2 emissions at 59%, followed by transportation at 36%, and waste generation at approximately 5%. The total CF(CO2_eq) generated from different sources is about 18360.62MT for one year. The recent COVID-19 lockdown has offered inimitable prospect to compare the carbon footprint of one of the largest higher education institutes of Pakistan before and during this pandemic. The data can serve for tracking, assessing, and setting goals for greenhouse gas emission reduction programs in future.</p>

Quantifying the Greenhouse Gas Emission Reductions Associated with Recycling Hot Mix Asphalt

2011 ◽  
Vol 12 (1) ◽  
pp. 57-77
Author(s):  
James W Lewis ◽  
Morton A Barlaz ◽  
Akhtar Tayebali ◽  
S Ranji Ranjithan
Keyword(s):  
Greenhouse Gas ◽  
Hot Mix Asphalt ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Emission Reductions

Growth of housing sector in India - application of Cost-effective Construction Technologies to reduce Greenhouse Gas Emission

2019 ◽  
Author(s):  
Nilanjan Sengupta
Keyword(s):  
Greenhouse Gas ◽  
Building Materials ◽  
Greenhouse Gas Emission ◽  
High Growth ◽  
Cost Effective ◽  
Construction Technology ◽  
Gas Emission ◽  
Sustainable Building ◽  
Skilled Manpower ◽  
Energy Consuming

Building construction sector can play a major role in reducing Greenhouse Gas emission through application of technologies aimed at reduction of use of building materials. Energy consumed during production of building materials and components plays a crucial role in creating environmental pollution. India is witnessing high growth in urban and rural housing, which needs more production of building materials. Permanent or semi-permanent type buildings which consume easily available conventional materials like brick, reinforced cement concrete etc. can be made Economic and Eco-friendly by lowering use of energy-consuming building materials through Cost-effective Construction Technologies. Buildings with Cost-effective Construction Technology can be designed within the parameters of the existing Indian Standards. Awareness generation among the users, proper technical and architectural guidance and easy availability of skilled manpower are of utmost importance for promotion of cost-effective technologies in India and to make them as the most acceptable case of sustainable building technologies both in terms of cost and environment.

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