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Vulnerability to watershed erosion and coastal deposition in the tropics

Over half of the global population is projected to live in the tropics by 2050. Sustainable land development will be challenged by enhanced sediment erosion and deposition, which can negatively impact water quality and ecosystem services in inland and coastal waterways. Existing erosion assessments...

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Autores principales: Browning, Trevor N., Sawyer, Derek E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806860/
https://www.ncbi.nlm.nih.gov/pubmed/33441573
http://dx.doi.org/10.1038/s41598-020-79402-y
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author Browning, Trevor N.
Sawyer, Derek E.
author_facet Browning, Trevor N.
Sawyer, Derek E.
author_sort Browning, Trevor N.
collection PubMed
description Over half of the global population is projected to live in the tropics by 2050. Sustainable land development will be challenged by enhanced sediment erosion and deposition, which can negatively impact water quality and ecosystem services in inland and coastal waterways. Existing erosion assessments treat watersheds and coastal zones separately, but we connect them in a two-part vulnerability index to watershed erosion and coastal deposition at 0.0004° (~ 45 m) resolution throughout the tropics. We use open-source datasets and a simple, GIS-based method geared toward tropical, novice end-users. Part 1 of the index reveals a majority of the tropics is vulnerable to erosion. Vulnerability is highest where there are co-occurrences of earthquakes, steep slopes, and high precipitation such as the Caribbean and Southeast Asia. In Part 2, we assess erosion vulnerability at 4 watersheds and include their coastal systems, which can enhance or diminish vulnerability of the entire system to coastal deposition.
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spelling pubmed-78068602021-01-14 Vulnerability to watershed erosion and coastal deposition in the tropics Browning, Trevor N. Sawyer, Derek E. Sci Rep Article Over half of the global population is projected to live in the tropics by 2050. Sustainable land development will be challenged by enhanced sediment erosion and deposition, which can negatively impact water quality and ecosystem services in inland and coastal waterways. Existing erosion assessments treat watersheds and coastal zones separately, but we connect them in a two-part vulnerability index to watershed erosion and coastal deposition at 0.0004° (~ 45 m) resolution throughout the tropics. We use open-source datasets and a simple, GIS-based method geared toward tropical, novice end-users. Part 1 of the index reveals a majority of the tropics is vulnerable to erosion. Vulnerability is highest where there are co-occurrences of earthquakes, steep slopes, and high precipitation such as the Caribbean and Southeast Asia. In Part 2, we assess erosion vulnerability at 4 watersheds and include their coastal systems, which can enhance or diminish vulnerability of the entire system to coastal deposition. Nature Publishing Group UK 2021-01-13 /pmc/articles/PMC7806860/ /pubmed/33441573 http://dx.doi.org/10.1038/s41598-020-79402-y Text en © The Author(s) 2021, corrected publication 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Browning, Trevor N.
Sawyer, Derek E.
Vulnerability to watershed erosion and coastal deposition in the tropics
title Vulnerability to watershed erosion and coastal deposition in the tropics
title_full Vulnerability to watershed erosion and coastal deposition in the tropics
title_fullStr Vulnerability to watershed erosion and coastal deposition in the tropics
title_full_unstemmed Vulnerability to watershed erosion and coastal deposition in the tropics
title_short Vulnerability to watershed erosion and coastal deposition in the tropics
title_sort vulnerability to watershed erosion and coastal deposition in the tropics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806860/
https://www.ncbi.nlm.nih.gov/pubmed/33441573
http://dx.doi.org/10.1038/s41598-020-79402-y
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