干旱区生态环境知识资源中心(Arid): Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine

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DOI	10.1111/tgis.12926
	Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine
	Moura, Marks Melo; Walter, Leticia Siqueira; da Silva Lins, Tarcila Rosa; Guarana Araujo, Emmanoella Costa; da Cunha Neto, Ernandes Macedo; Santana, Gabriel Mendes; Santos Brasil, Iaci Dandara; Silva, Thiago Cardoso
通讯作者	Walter, LS
来源期刊	TRANSACTIONS IN GIS
ISSN	1361-1682
EISSN	1467-9671
出版年	2022
卷号	26 期号:4 页码:2041-2055
英文摘要	Intensive agricultural production has negative environmental impacts, increasing predisposition to desertification in areas with inadequate soil management. To evaluate the effects of agriculture, we aimed to perform a temporal analysis and analyze the development of desertification in Northeast Brazil. Initially, the region was separated into four climatic zones, grouping the locations with similar characteristics of air temperature and rainfall. In the analyses, images of the northeast region acquired from the Landsat 5 (1989, 1999, and 2009) and Landsat 8 (2019) satellites were processed using the Google Earth Engine platform. The periods were separated into dry and rainy periods, according to the climatic zones. The evaluation of vegetation index, characterization of the remaining vegetation cover, landscape pattern, and meteorological conditions were performed, respectively, through the Normalized Difference Vegetation Index, Modified Soil-Adjusted Vegetation Index, and albedo of the terrestrial surface. The desertification index showed an increase in susceptible areas when comparing the interval from 1989 to 2019. In general, our results showed that there is less predisposition for desertification to occur during the rainy season. Also, when the results of our study were compared to official data released by the National Program of Action to Combat Desertification and Mitigate the Effects of Drought, there was disagreement regarding the classification of areas.
类型	Article
语种	英语
收录类别	SSCI
WOS记录号	WOS:000774737800001
WOS关键词	AREAS
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394733
推荐引用方式 GB/T 7714	Moura, Marks Melo,Walter, Leticia Siqueira,da Silva Lins, Tarcila Rosa,et al. Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine[J],2022,26(4):2041-2055.
APA	Moura, Marks Melo.,Walter, Leticia Siqueira.,da Silva Lins, Tarcila Rosa.,Guarana Araujo, Emmanoella Costa.,da Cunha Neto, Ernandes Macedo.,...&Silva, Thiago Cardoso.(2022).Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine.TRANSACTIONS IN GIS,26(4),2041-2055.
MLA	Moura, Marks Melo,et al."Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine".TRANSACTIONS IN GIS 26.4(2022):2041-2055.