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Filtering by: Creator Costa Monteiro, Carlos Advisor Harmon, Mark E.

Spatial and temporal variability of carbon dynamics in a tropical forest of Colombia

Creator:

Sierra, Carlos Alberto

Abstract:

Despite the importance of tropical forest ecosystems in the global carbon cycle, there have been few studies of carbon dynamics in this biome. The magnitude of carbon stocks in the tropics and their changes over time are poorly known since ground-based observations are lacking. In this study, total carbon stocks...

Resource Type:

Masters Thesis

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Carlos Alberto Sierra for the degree of Master of Science in Forest Science presented on March 20, 2006
Environmental variability and system heterogeneity in terrestrial biogeochemical models

Creator:

Sierra, Carlos Alberto

Abstract:

Ecosystems are highly heterogeneous systems subjected to important levels of environmental variability; however, it is common in terrestrial biogeochemical models to assume homogeneous properties of the elements of the system or constant environmental conditions. For some processes, heterogeneity in these models is treated very simplistically, but there is not much...

Resource Type:

Dissertation

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AN ABSTRACT OF THE DISSERTATION OF Carlos A. Sierra for the
Nitrogen and phosphorus dynamics during decomposition of multiple litter types in temperate coniferous forests

Creator:

van Huysen, Tiffany L.

Abstract:

Litter nutrient dynamics contribute significantly to biogeochemical cycling in forest ecosystems. These dynamics may be influenced by site attributes, litter nutrient concentrations, and soil nutrient availability either independently or synergistically. Litter nutrient dynamics were examined in two decomposition studies in temperate coniferous forests of Oregon. I used ¹⁵N-labelled litter of...

Resource Type:

Dissertation

Full Text:

, Carlos Sierra, Em Sinkhorn, Aaron Thiel, and Jeannette Tuitele-Lewis. I would like to thank Jake