干旱区生态环境知识资源中心(Arid): Towards Uncovering Three Decades of LULC in the Brazilian Drylands: Caatinga Biome Dynamics (1985-2019)

Arid

DOI	10.3390/land13081250
	Towards Uncovering Three Decades of LULC in the Brazilian Drylands: Caatinga Biome Dynamics (1985-2019)
	Rocha, Washington J. S. Franca; Vasconcelos, Rodrigo N.; Costa, Diego P.; Duverger, Soltan Galano; Lobao, Jocimara S. B.; Souza, Deorgia T. M.; Herrmann, Stefanie M.; Santos, Nerivaldo A.; Rocha, Rafael O. Franca; Ferreira-Ferreira, Jefferson; Oliveira, Mariana; Barbosa, Leonardo da Silva; Cordeiro, Carlos Leandro; Aguiar, Willian M.
通讯作者	Rocha, WJSF
来源期刊	LAND
EISSN	2073-445X
出版年	2024
卷号	13 期号:8
英文摘要	Dryland regions around the world are facing intricate challenges due to climate change and human activities. The Caatinga biome in Brazil, an exceptional dryland ecosystem covering approximately 86.3 million hectares, is particularly impacted by human influence. We conducted an extensive study analyzing changes in land use and land cover within the Caatinga region over a span of 35 years, from 1985 to 2019. This study leverages collective knowledge and collaborative effort with the MapBiomas project to provide valuable insights into the biome's landscape. It maps eight principal land cover classes using Landsat Collection 1 Tier 1 data normalized to top-of-atmosphere reflectance. All data processing was carried out within the Google Earth Engine platform, and the graphics were generate using R version 3.6.2. This study achieved an impressive 80% global accuracy in the time series of Caatinga land use and land cover (LULC) changes, with allocation and area discrepancies of 11.6% and 8.5%, respectively. The extensive 35-year LULC dataset reveals a substantial 11% reduction in natural vegetation in the Caatinga biome, translating to a loss of 6.57 million hectares. This decline is primarily attributed to the expansion of cattle ranching and agriculture; all types of natural vegetation have experienced decreases, with Savanna Formation (SF) areas declining by 11% and Forest Formation (FF) areas declining by 8%. In contrast, pasturelands expanded by 62% and agricultural land expanded by 284% during this period. With their urgent and significant real-world for informing social, economic, and environmental policy decisions within the Caatinga and other dryland regions globally, these findings underscore the importance and immediacy of our research.
英文关键词	landscape dynamics LULC trajectory drylands dynamics caatinga dynamics savanna formation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:001305522400001
WOS关键词	DESERTIFICATION ; LAND
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404827
推荐引用方式 GB/T 7714	Rocha, Washington J. S. Franca,Vasconcelos, Rodrigo N.,Costa, Diego P.,et al. Towards Uncovering Three Decades of LULC in the Brazilian Drylands: Caatinga Biome Dynamics (1985-2019)[J],2024,13(8).
APA	Rocha, Washington J. S. Franca.,Vasconcelos, Rodrigo N..,Costa, Diego P..,Duverger, Soltan Galano.,Lobao, Jocimara S. B..,...&Aguiar, Willian M..(2024).Towards Uncovering Three Decades of LULC in the Brazilian Drylands: Caatinga Biome Dynamics (1985-2019).LAND,13(8).
MLA	Rocha, Washington J. S. Franca,et al."Towards Uncovering Three Decades of LULC in the Brazilian Drylands: Caatinga Biome Dynamics (1985-2019)".LAND 13.8(2024).