Soil carbon efflux and litter decomposition in natural forests of KFRI Peechi campus
By: Nirajlal K.
Contributor(s): Sreejith K A (Guide).
Material type:
BookPublisher: Vellanikkara Academy of Climate Change Education and Research 2017Description: 76p.Subject(s): Climate Change Education and ResearchDDC classification: 551.6 Online resources: Click here to access online Dissertation note: BSc - MSc (Integrated) Abstract: Litter dynamics and soil respiration are of great interest in climate change
studies due to their roles in recycling carbon and nutrients. Present study was conducted
with the objectives of understanding patterns and the process of litter dynamics and the
role of weather on soil carbon efflux. Litterbag technique was used to determine the
decomposition of litter for 180 days. Soil CO2 fluxes were measured for a period of
three weeks in a month for up to 180 days. Mass loss, total carbon of decayed litter and
litter fall were quantified. Major tree species’ litter dynamics were also determined.
Relationship between soil CO2 efflux with soil and weather parameters were
determined using correlation technique. Decomposition constant with a value of 0.009
day-1 was found in moist deciduous forest. Among weather parameters, soil carbon
dioxide efflux had weak positive correlation with rainfall and relative humidity and had
weak negative correlation with temperature. Among soil parameters, soil carbon
dioxide efflux had very weak positive correlation with soil organic carbon and soil
moisture. The weak correlation coefficient value came due to lesser variables which
indicates duration of this study is not enough. Among species wise study, Terminalia
paniculata possess higher deciduous properties that directly contributing more to soil
carbon sequestration and it was also found that Tectona grandis had high carbon
content per unit volume compared to other species. But the species Macaranga peltata
might sequestered more amount of carbon in a short time due to its high decomposition
rate. The study highlights the different responses of soil CO2 efflux to weather and soil
parameters but suggests a long duration study for in-depth analysis which is very
relevant in carbon dynamics and climate change studies.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | Reference Book | 551.6 NIR/SO (Browse shelf) | Not For Loan | 174277 |
BSc - MSc (Integrated)
Litter dynamics and soil respiration are of great interest in climate change
studies due to their roles in recycling carbon and nutrients. Present study was conducted
with the objectives of understanding patterns and the process of litter dynamics and the
role of weather on soil carbon efflux. Litterbag technique was used to determine the
decomposition of litter for 180 days. Soil CO2 fluxes were measured for a period of
three weeks in a month for up to 180 days. Mass loss, total carbon of decayed litter and
litter fall were quantified. Major tree species’ litter dynamics were also determined.
Relationship between soil CO2 efflux with soil and weather parameters were
determined using correlation technique. Decomposition constant with a value of 0.009
day-1 was found in moist deciduous forest. Among weather parameters, soil carbon
dioxide efflux had weak positive correlation with rainfall and relative humidity and had
weak negative correlation with temperature. Among soil parameters, soil carbon
dioxide efflux had very weak positive correlation with soil organic carbon and soil
moisture. The weak correlation coefficient value came due to lesser variables which
indicates duration of this study is not enough. Among species wise study, Terminalia
paniculata possess higher deciduous properties that directly contributing more to soil
carbon sequestration and it was also found that Tectona grandis had high carbon
content per unit volume compared to other species. But the species Macaranga peltata
might sequestered more amount of carbon in a short time due to its high decomposition
rate. The study highlights the different responses of soil CO2 efflux to weather and soil
parameters but suggests a long duration study for in-depth analysis which is very
relevant in carbon dynamics and climate change studies.
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