Denis Mariano

Denis Mariano

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  • Publications & Presentations
  • Background
  • Interests
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Degree PhD in NRES
Address 243a North Hardin Hall
3310 Holdrege Street
Lincoln NE
68583-0982
FAX 402-472-2946
Cell 402-450-5690
E-mail denismeia@gmail.com
Advisor(s) Brian Wardlow
Contact Preference

cell phone, email

Office Hours

M, T, W, R, F

n/a

Selected Publications

Mariano, D. A., dos Santos, C. C., Wardlow, B., Anderson, M. C., Schiltmeyer, A. V., Tadesse, T., Svoboda, M. (2018). Use of remote sensing indicators to assess effects of drought and human-induced land degradation on ecosystem health in Northeastern Brazil. Remote Sensing of Environment/Elsevier, 213, 129-143.

 

Selected Presentations

Drought impacts assessment in Brazil - a remote sensing approach
  • Presentation Type: Dissertation Defense
  • Date: 6/28/2019
  • Abstract:

    Climate extremes are expected to increase in frequency and intensity globally, according to the scientific community. In Brazil, one of the main concerns is the increased incidence of drought, bringing unprecedented scenarios, which requires understanding, adaptation, and mitigation. Remote sensing data, once scientifically interpreted, is capable of providing information for the policymakers to better deal with the apparent lack of preparedness to deal with drought impacts. Drought has many facets depending on where, how, when, and for how long it happens. A series of studies were conducted to assess the impacts of drought on different regions in Brazil in the 2000s, thus providing a better understanding of the phenomenon and, in some cases, proposing solutions to deal with them. One study covers agriculture in southern Brazil, designing a methodology to anticipate drought impacts on crop yield. The second research aimed at assessing the effects of an extended drought period in the drylands of the northeastern region of Brazil, which possibly caused land degradation. The last study is based on the southern Amazon, which includes the Indigenous Park of Xingu -- in this research, we assessed the complex degradation cycle encompassing land use changes, fire occurrences, forest resilience loss, crop productivity and, alterations in the carbon balance. The results bring new insights on the impacts assessment of the 2000s droughts and, therefore, set the stage for the development of a framework adapted to the new scenario, at where climate extremes will be a common threat to human wellbeing.

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