Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/se-6-347-2015 |
Identifying areas susceptible to desertification in the Brazilian northeast | |
Vieira, R. M. S. P.1; Tomasella, J.1,2; Alvala, R. C. S.2; Sestini, M. F.1; Affonso, A. G.1; Rodriguez, D. A.1; Barbosa, A. A.2; Cunha, A. P. M. A.2; Valles, G. F.1; Crepani, E.1; de Oliveira, S. B. P.3; de Souza, M. S. B.3; Calil, P. M.4; de Carvalho, M. A.2; Valeriano, D. M.1; Campello, F. C. B.5; Santana, M. O.5 | |
通讯作者 | Vieira, R. M. S. P. |
来源期刊 | SOLID EARTH
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ISSN | 1869-9510 |
EISSN | 1869-9529 |
出版年 | 2015 |
卷号 | 6期号:1页码:347-360 |
英文摘要 | 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 km(2)) 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. |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000352161500026 |
WOS关键词 | LAND DEGRADATION ; SOIL-EROSION ; RANGELANDS ; DYNAMICS ; SYSTEMS ; COVER ; SCALE |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/190502 |
作者单位 | 1.Inst Nacl Pesquisas Espaciais, BR-12201 Sao Jose Dos Campos, Brazil; 2.Ctr Nacl Monitoramento & Alertas Desastres Nat, Cachoeira Paulista, Brazil; 3.Fundacao Cearense Meteorol & Recursos Hidr, Fortaleza, Ceara, Brazil; 4.Secretaria Agr Agr & Abastecimento Goias, Goiania, Go, Brazil; 5.Secretaria Extrativismo & Desenvolvimento Rural S, Brasilia, DF, Brazil |
推荐引用方式 GB/T 7714 | Vieira, R. M. S. P.,Tomasella, J.,Alvala, R. C. S.,et al. Identifying areas susceptible to desertification in the Brazilian northeast[J],2015,6(1):347-360. |
APA | Vieira, R. M. S. P..,Tomasella, J..,Alvala, R. C. S..,Sestini, M. F..,Affonso, A. G..,...&Santana, M. O..(2015).Identifying areas susceptible to desertification in the Brazilian northeast.SOLID EARTH,6(1),347-360. |
MLA | Vieira, R. M. S. P.,et al."Identifying areas susceptible to desertification in the Brazilian northeast".SOLID EARTH 6.1(2015):347-360. |
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