التفاصيل البيبلوغرافية
| العنوان: |
Beyond the case study: characterizing natural floodplain heterogeneity in the United States |
| المؤلفون: |
Iskin, Emily Paige, author, Wohl, Ellen, advisor, Morrison, Ryan, committee member, McGrath, Daniel, committee member, Ronayne, Michael, committee member |
| بيانات النشر: |
Colorado State University. Libraries |
| سنة النشر: |
2023 |
| المجموعة: |
Digital Collections of Colorado (Colorado State University) |
| مصطلحات موضوعية: |
fluvial geomorphology, remote sensing, spatial heterogeneity, landscape ecology, floodplain, river |
| الوصف: |
Includes bibliographical references. ; 2023 Spring. ; With human degradation of natural river corridors, the number of natural, functional floodplains is rapidly decreasing due to dams, diversions, artificial levees, draining, development, agriculture, and invasive species. At the same time, small- to large-scale interest in and implementation of river restoration is expanding, with floodplain restoration soon to take a starring role. To properly manage and restore processes to floodplains, we first need a broad understanding of what they look like and why. A key component of natural river-floodplain systems is heterogeneity, defined as the spatial variation of geomorphic and vegetation classes and patches across a floodplain. Heterogeneity of floodplains both reflects and influences the fluvial processes acting on floodplains and can help shape our understanding of the form and function of floodplains. To begin characterizing floodplain spatial heterogeneity, I present in this dissertation: 1) the development of a method to combine field measurements and remote sensing data products to calculate integrative landscape-scale metrics of floodplain spatial heterogeneity, and the demonstration of which metrics from landscape ecology are likely to be useful for identifying qualities of natural floodplains at four case study sites; 2) a sensitivity analysis to determine whether and how the values of the heterogeneity metrics change when spatial and spectral resolution of the input data are increased, and the extraction of underlying data from the classification results to determine whether using higher resolution data allows identification of the resulting unsupervised classes in relation to field and remote data at four case study sites; and 3) quantification of floodplain spatial heterogeneity, evaluation of whether statistically significant patterns are present, and interpretation of the statistical analyses with respect to the influence of channel lateral mobility and valley-floor space available using a complete ... |
| نوع الوثيقة: |
text |
| وصف الملف: |
born digital; doctoral dissertations; application/pdf |
| اللغة: |
English |
| العلاقة: |
2020-; Iskin_colostate_0053A_17680.pdf; https://hdl.handle.net/10217/236679Test |
| الإتاحة: |
https://hdl.handle.net/10217/236679Test |
| حقوق: |
Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyrightTest. |
| رقم الانضمام: |
edsbas.F7A263D1 |
| قاعدة البيانات: |
BASE |
