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Visualizing Barrier Dune Topographic State Space And Inference Of Resilience Properties, Li-Chih Hsu
Visualizing Barrier Dune Topographic State Space And Inference Of Resilience Properties, Li-Chih Hsu
Theses and Dissertations--Geography
The linkage between barrier island morphologies and dune topographies, vegetation, and biogeomorphic feedbacks, has been examined. The two-fold stability domain (i.e., overwash-resisting and overwash-reinforcing stability domains) model from case studies in a couple of islands along the Georgia Bight and Virginia coast has been proposed to examine the resilience properties in the barrier dune systems. Thus, there is a need to examine geographic variations in the dune topography among and within islands. Meanwhile, previous studies just analyzed and compared dune topographies based on transect-based point elevations or dune crest elevations; therefore, it is necessary to further examine dune topography in …
Resilience And Adaptation In A World System Periphery: Long-Term Perspectives From The Lake Atitlan Basin, Highland Guatemala 600 Bc – 1600 Ad, Gavin R. Davies
Resilience And Adaptation In A World System Periphery: Long-Term Perspectives From The Lake Atitlan Basin, Highland Guatemala 600 Bc – 1600 Ad, Gavin R. Davies
Theses and Dissertations--Anthropology
The Lake Atitlan Basin of highland Guatemala boasted fertile soils and was rich in natural resources, making it an attractive area for permanent settlement. However, the region lacked a number of important items, such as salt, cotton, and obsidian, all of which had to be obtained through trade. Good agricultural land was also scarce in certain parts of the lake and the steep hillslopes were easily eroded, making it necessary for communities to maintain access to emergency supplies of corn. Lake Atitlan’s communities were therefore highly dependent on exchanges with neighboring groups who occupied contrasting ecological zones, especially those in …