دورية أكاديمية
أعرض في EDS

Identifying areas susceptible to desertification in the Brazilian northeast

التفاصيل البيبلوغرافية
العنوان: Identifying areas susceptible to desertification in the Brazilian northeast
المؤلفون: R. M. S. P. Vieira, J. Tomasella, R. C. S. Alvalá, M. F. Sestini, A. G. Affonso, D. A. Rodriguez, A. A. Barbosa, A. P. M. A. Cunha, G. F. Valles, E. Crepani, S. B. P. de Oliveira, M. S. B. de Souza, P. M. Calil, M. A. de Carvalho, D. M. Valeriano, F. C. B. Campello, M. O. Santana
المصدر: Solid Earth, Vol 6, Iss 1, Pp 347-360 (2015)
بيانات النشر: Copernicus Publications, 2015.
سنة النشر: 2015
المجموعة: LCC:Geology
LCC:Stratigraphy
مصطلحات موضوعية: Geology, QE1-996.5, Stratigraphy, QE640-699
الوصف: Approximately 57% of the Brazilian northeast region is recognized as semi-arid land and has been undergoing intense land use processes in the last decades, which have resulted in severe degradation of its natural assets. Therefore, the objective of this study is to identify the areas that are susceptible to desertification in this region based on the 11 influencing factors of desertification (pedology, geology, geomorphology, topography data, land use and land cover change, aridity index, livestock density, rural population density, fire hot spot density, human development index, conservation units) which were simulated for two different periods: 2000 and 2010. Each indicator were assigned weights ranging from 1 to 2 (representing the best and the worst conditions), representing classes indicating low, moderate and high susceptibility to desertification. The results indicate that 94% of the Brazilian northeast region is under moderate to high susceptibility to desertification. The areas that were susceptible to soil desertification increased by approximately 4.6% (83.4 km2) from 2000 to 2010. The implementation of the methodology provides the technical basis for decision-making that involves mitigating actions and the first comprehensive national assessment within the United Nations Convention to Combat Desertification framework.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1869-9510
1869-9529
Relation: http://www.solid-earth.net/6/347/2015/se-6-347-2015.pdf; https://doaj.org/toc/1869-9510; https://doaj.org/toc/1869-9529
DOI: 10.5194/se-6-347-2015
URL الوصول: https://doaj.org/article/3480820cc9634b77ab808d292514a0a9
رقم الأكسشن: edsdoj.3480820cc9634b77ab808d292514a0a9
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:18699510
18699529
DOI:10.5194/se-6-347-2015