干旱区生态环境知识资源中心(Arid): Monitoring agricultural drought using different indices based on remote sensing data in the Brazilian biomes of Cerrado and Atlantic Forest

Arid

DOI	10.1007/s00484-024-02731-4
	Monitoring agricultural drought using different indices based on remote sensing data in the Brazilian biomes of Cerrado and Atlantic Forest
	Pacheco, Dhiego Goncalves; de Andrade, Andre Medeiros
通讯作者	Pacheco, DG
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
ISSN	0020-7128
EISSN	1432-1254
出版年	2024
英文摘要	Several remote sensing indices have been used to monitor droughts, mainly in semi-arid regions with limited coverage by meteorological stations. The objective of this study was to estimate and monitor agricultural drought conditions in the Jequitinhonha Valley region, located in the Brazilian biomes of the Cerrado and Atlantic Forest, from 2001 to 2021, using vegetation indices and the meteorological drought index from remote sensing data. Linear regression was applied to analyze drought trends and Pearson's correlation coefficient was applied to evaluate the relationship between vegetation indices and climatic conditions in agricultural areas using the Standardized Precipitation Index. The results revealed divergences in the occurrences of regional droughts, predominantly covering mild to moderate drought conditions. Analysis spatial of drought trends revealed a decreasing pattern, indicating an increase in drought in the Middle and Low Jequitinhonha sub-regions. On the other hand, a reduction in drought was observed in the High Jequitinhonha region. Notably, the Vegetation Condition Index demonstrated the most robust correlation with the Standardized Precipitation Index, with R values greater than 0.5 in all subregions of the study area. This index showed a strong association with precipitation, proving its suitability for monitoring agricultural drought in heterogeneous areas and with different climatic attributes. The use of remote sensing technology made it possible to detect regional variations in the spatio-temporal patterns of drought in the Jequitinhonha Valley. This vision helps in the implementation of personalized strategies and public policies, taking into account the particularities of each area, in order to mitigate the negative impacts of drought on agricultural activities in the region.
英文关键词	Drought Spatial pattern Drought trend Remote sensing
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001264615200001
WOS关键词	VEGETATION INDEXES ; RIVER-BASIN ; NORTHEAST ; IMPACT ; FREQUENCY ; TRENDS ; MODIS ; WATER
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404209
推荐引用方式 GB/T 7714	Pacheco, Dhiego Goncalves,de Andrade, Andre Medeiros. Monitoring agricultural drought using different indices based on remote sensing data in the Brazilian biomes of Cerrado and Atlantic Forest[J],2024.
APA	Pacheco, Dhiego Goncalves,&de Andrade, Andre Medeiros.(2024).Monitoring agricultural drought using different indices based on remote sensing data in the Brazilian biomes of Cerrado and Atlantic Forest.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY.
MLA	Pacheco, Dhiego Goncalves,et al."Monitoring agricultural drought using different indices based on remote sensing data in the Brazilian biomes of Cerrado and Atlantic Forest".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY (2024).