Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"DayCent"”.
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Development and application of quantitative methods for ecosystem services
… climate regulation ecosystem services using the DayCent model; and (4) evaluate Indiana agricultural producers' and conservationists' perceptions of ecosystem services in order to identify the best ways to improve inclusion of the ecosystem service considerations in making agricultural management …
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Modelling spatial variation and environmental impacts of land use change in the exploitation of land-based renewable bioenergy crops
… (CHP). Modelling using an adapted version of DayCent was performed for typical sites to assess variation in yield, nitrous oxide (N2O) emissions, evapotranspiration (ET) and change in soil organic carbon (SOC) according to soil properties, hydrologic regime and previous land use. Development …
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Impacts of Landscape Position and Nitrogen Fertilizer on Soils, Carbon and Nitrogen Leaching, and Greenhouse Gas Fluxes from Switchgrass Production in South Dakota
… temperature and precipitation changes using DAYCENT model on soil carbon dioxide (CO2) fluxes from switchgrass land; and (v) predict the long-term impacts of switchgrass production on the SOC, NO3 -, water-filled pore space (WFPS), CO2 and N2O fluxes for switchgrass fields under changing …
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Regenerative agriculture and soil carbon storage in the Upper Corn Belt
… for coupling estimated soil erosion with the DayCent model to improve simulations of SOC stocks on farmland with slight slopes. I also discuss the unique challenges of simulating commercial farm scenarios using data collected from real-world farmers. The dissertation concludes with a …
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Plant root contributions to the carbon balance of a changing agricultural Midwest
… then used a process-based ecosystem model (DayCent) to extend these observations and infer long-term changes in soil C. Heating and CO2 both increased microbial respiration by ~20%, and heating reduced root respiration by ~25%. Particulate organic matter was lower in elevated CO2 plots, …
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Ecosystem Consequences of Post-Fire Invasive Species in the Great Basin Desert
… as surface soil moisture declined below 10%. DAYCENT, a daily time-step process-based ecosystem model, agreed well (R2 > 0.63, P < 0.01) with field-based measurements of NCE, ET and soil water content. While total annual ET was similar between sagebrush and post-fire Sisymbrium communities, …
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Environmental change and soil organic carbon storage in a dust emission hotspot, Free State, South Africa
… was observed to decrease with increasing depth. DAYCENT carbon model was further used to simulate soil carbon in different land management scenarios to come up with suitable land management options for storing more carbon in future. Results illustrated that native grassland can substantially …