Abstract
The emissions of greenhouse gas (GHG) from soils are of significant importance for global warming. The biological and physico-chemical characteristics of soil affect the GHG emissions from soils of different land use types. Methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2) production rates from six forest and agricultural soil types in the Koteshwar hydropower reservoir catchments located in the Uttarakhand, India, were estimated and their relations with physico-chemical characteristics of soils were examined. The samples of different land use types were flooded and incubated under anaerobic condition at 30°C for 60days. The cumulative GHG production rates in reservoir catchment are found as 1.52±0.26, 0.13±0.02, and 0.0004±0.0001μggsoil-1day-1 for CO2, CH4, and N2O, respectively, which is lower than global reservoirs located in the same eco-region. The significant positive correlation between CO2 productions and labile organic carbon (LOC), CH4 and C/N ratio, while N2O and N/P ratio, while pH of soils is negatively correlated, conforms their key role in GHG emissions. Carbon available as LOC in the reservoir catchment is found as 3-14% of the total ‟C" available in soils and 0-23% is retained in the soil after the completion of incubation. The key objective of this study to signify the C, N, and P ratios, LOC, and pH with GHG production rate by creating an incubation experiment (as in the case of benthic soil/sediment) in the lab for 60days. In summary, the results suggest that carbon, as LOC were more sensitive indicators for CO2 emissions and significant C, N, and P ratios, affects the GHG emissions. This study is useful for the hydropower industry to know the GHG production rates after the construction of reservoir so that its effect could be minimized by taking care of catchment area treatment plan.
Full Text
Topics from this Paper
Labile Organic Carbon
Reservoir Catchment
Completion Of Incubation
Physico-chemical Characteristics Of Soil
Greenhouse Gas
+ Show 5 more
Create a personalized feed of these topics
Get StartedTalk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Similar Papers
Frontiers in Microbiology
Mar 21, 2023
Global Change Biology
Apr 6, 2023
Eurasian Soil Science
Apr 1, 2021
Environmental Research Letters
Mar 1, 2013
Handbook of Bioenergy Economics and Policy: Volume II
Jan 1, 2017
Environmental Research Letters
Jun 1, 2013
Aug 29, 2017
Biomass and Bioenergy
Jun 1, 2011
iScience
Feb 1, 2023
Environmental Research Letters
Jun 1, 2013
International Journal of Environmental Science and Technology
Dec 20, 2013
Journal of Soils and Sediments
Jul 6, 2010
Sep 14, 2016
Environmental Earth Sciences
Jul 3, 2015
Environmental Monitoring and Assessment
Environmental Monitoring and Assessment
Nov 27, 2023
Environmental Monitoring and Assessment
Nov 27, 2023
Environmental Monitoring and Assessment
Nov 27, 2023
Environmental Monitoring and Assessment
Nov 27, 2023
Environmental Monitoring and Assessment
Nov 27, 2023
Environmental Monitoring and Assessment
Nov 25, 2023
Environmental Monitoring and Assessment
Nov 25, 2023
Environmental Monitoring and Assessment
Nov 25, 2023
Environmental Monitoring and Assessment
Nov 24, 2023
Environmental Monitoring and Assessment
Nov 24, 2023