Matches in SemOpenAlex for { <https://semopenalex.org/work/W33696919> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W33696919 abstract "The climate is changing and with it the capacity of soils to store carbon in all likelihood, since there is strong evidence that decomposition increases with increasing temperature. The soil contains about twice as much carbon as the atmosphere, so decreasing soil carbon will increase atmospheric CO₂ concentrations proportionally more, further contributing to temperature increase. Different types of soil carbon may respond differently to climate change. A central theory in explaining temperature sensitivity is the activation energy concept sensu Arrhenius. Applied to soil organic matter (SOM) it suggests that low quality SOM will respond more strongly to increased temperature than high quality SOM. Much of the carbon in soil is old and believed to be of low quality. This thesis examines the effects of temperature and SOM quality, separately and in combination. A model of decomposition as three processes in series resulted in unexpected temperature sensitivity, which may explain why the temperature sensitivity is so variable in the literature. A subsequent incubation experiment with different types of organic matter subjected to combinations of different initial and final temperatures showed that the temperature sensitivity increased with time, in agreement with existing theory. In contrast, the effects of past temperatures on present respiration were different than expected. When the decomposition experiment was modelled using the Q-model, decomposer efficiency decreased with temperature, greatly affecting the AOM quality decrease and indirectly affecting temperature sensitivity. Other results presented in the thesis showed that high quality SOM can be stored for hundreds of years and still be made available to decomposers simply by subjecting the soil to drying/wetting cycles. The results presented in this thesis have theoretical and experimental implications and indicate that quality might be less important than previously believed in terms of SOM susceptibility to increasing temperatures. The other processes involved need further attention." @default.
- W33696919 created "2016-06-24" @default.
- W33696919 creator A5019642720 @default.
- W33696919 date "2010-01-01" @default.
- W33696919 modified "2023-09-23" @default.
- W33696919 title "Decomposition of soil organic matter" @default.
- W33696919 hasPublicationYear "2010" @default.
- W33696919 type Work @default.
- W33696919 sameAs 33696919 @default.
- W33696919 citedByCount "1" @default.
- W33696919 crossrefType "dissertation" @default.
- W33696919 hasAuthorship W33696919A5019642720 @default.
- W33696919 hasConcept C104170005 @default.
- W33696919 hasConcept C104779481 @default.
- W33696919 hasConcept C107872376 @default.
- W33696919 hasConcept C110872660 @default.
- W33696919 hasConcept C124681953 @default.
- W33696919 hasConcept C140205800 @default.
- W33696919 hasConcept C154414509 @default.
- W33696919 hasConcept C158787203 @default.
- W33696919 hasConcept C159390177 @default.
- W33696919 hasConcept C159750122 @default.
- W33696919 hasConcept C159985019 @default.
- W33696919 hasConcept C178790620 @default.
- W33696919 hasConcept C182124840 @default.
- W33696919 hasConcept C185592680 @default.
- W33696919 hasConcept C18903297 @default.
- W33696919 hasConcept C192562407 @default.
- W33696919 hasConcept C39432304 @default.
- W33696919 hasConcept C39464130 @default.
- W33696919 hasConcept C48743137 @default.
- W33696919 hasConcept C6939412 @default.
- W33696919 hasConcept C86803240 @default.
- W33696919 hasConceptScore W33696919C104170005 @default.
- W33696919 hasConceptScore W33696919C104779481 @default.
- W33696919 hasConceptScore W33696919C107872376 @default.
- W33696919 hasConceptScore W33696919C110872660 @default.
- W33696919 hasConceptScore W33696919C124681953 @default.
- W33696919 hasConceptScore W33696919C140205800 @default.
- W33696919 hasConceptScore W33696919C154414509 @default.
- W33696919 hasConceptScore W33696919C158787203 @default.
- W33696919 hasConceptScore W33696919C159390177 @default.
- W33696919 hasConceptScore W33696919C159750122 @default.
- W33696919 hasConceptScore W33696919C159985019 @default.
- W33696919 hasConceptScore W33696919C178790620 @default.
- W33696919 hasConceptScore W33696919C182124840 @default.
- W33696919 hasConceptScore W33696919C185592680 @default.
- W33696919 hasConceptScore W33696919C18903297 @default.
- W33696919 hasConceptScore W33696919C192562407 @default.
- W33696919 hasConceptScore W33696919C39432304 @default.
- W33696919 hasConceptScore W33696919C39464130 @default.
- W33696919 hasConceptScore W33696919C48743137 @default.
- W33696919 hasConceptScore W33696919C6939412 @default.
- W33696919 hasConceptScore W33696919C86803240 @default.
- W33696919 hasLocation W336969191 @default.
- W33696919 hasOpenAccess W33696919 @default.
- W33696919 hasPrimaryLocation W336969191 @default.
- W33696919 hasRelatedWork W1255934516 @default.
- W33696919 hasRelatedWork W1964589705 @default.
- W33696919 hasRelatedWork W1998176511 @default.
- W33696919 hasRelatedWork W2014058723 @default.
- W33696919 hasRelatedWork W2051931181 @default.
- W33696919 hasRelatedWork W2134975679 @default.
- W33696919 hasRelatedWork W2156657148 @default.
- W33696919 hasRelatedWork W2168954548 @default.
- W33696919 hasRelatedWork W2321348757 @default.
- W33696919 hasRelatedWork W24702683 @default.
- W33696919 hasRelatedWork W2556400652 @default.
- W33696919 hasRelatedWork W2766704875 @default.
- W33696919 hasRelatedWork W2767698430 @default.
- W33696919 hasRelatedWork W2805892078 @default.
- W33696919 hasRelatedWork W2809731584 @default.
- W33696919 hasRelatedWork W2951525038 @default.
- W33696919 hasRelatedWork W2991162018 @default.
- W33696919 hasRelatedWork W303181 @default.
- W33696919 hasRelatedWork W40239605 @default.
- W33696919 hasRelatedWork W2186132185 @default.
- W33696919 isParatext "false" @default.
- W33696919 isRetracted "false" @default.
- W33696919 magId "33696919" @default.
- W33696919 workType "dissertation" @default.