CO2 emission from agricultural soils is highly dynamic, function of organic carbon, microbial C, soil moisture, pH, soil thermal environments, crop residues incorporation, climatic condition.
pot culture or controlled incubation studies, how they can be used for assessment on regional scales, what are the limitations/problems in this process?
most of the time, incubation results are overestimating the emissions,
Our RG network has eminent researchers working on this aspect, i wish to have their views.
regards
CO2 emissions are definitely highly variable based on the factors you listed. Most regional estimates use factors affecting CO2 flux around mean using multiple regression type functions. One study that is cited a lot is
Raich, J. W. and C. S. Potter. 1995. Global Patterns of Carbon Dioxide Emissions from Soils. Global Biogeochemical Cycles 9(1)23-36.
Regional estimates cannot be used for local predictions below their scale as that will introduce extrapolation error. Individual site conditions vary highly both spatially and temporally.
Dear Timothy
thanks a lot for providing an excellent reference, also I fully agree with your comments
regards
- Badges
- Science topic
- Similar topics
- Agricultural Science
- Agronomy
- Crop Science