干旱区生态环境知识资源中心(Arid): The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacan-Cuicatlan Biosphere Reserve

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DOI	10.3389/fenvs.2021.681703
	The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacan-Cuicatlan Biosphere Reserve
	Sedeno-Diaz, Jacinto Elias; Lopez-Lopez, Eugenia
通讯作者	Sedeno-Diaz, JE (corresponding author), Inst Politecn Nacl, Coordinac Politecn Sustentabilidad, Mexico City, DF, Mexico.
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2021
卷号	9
英文摘要	The Tehuacan-Cuicatlan Biosphere Reserve, Mexico (TCBR) is the southernmost arid or semi-arid zone with the highest biodiversity in North America and is a UNESCO World Heritage site. Two main hydrographic streams cross the TCBR, the Salado River (an endogenous river) and the Grande River (an exogenous river). This study investigated temperature anomalies over the past 40 years. We analyzed potential differences between sub-basins and riparian areas on both streams using various indices, namely the Global Warming Index (GWI), Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), and Normalized Difference Drought Index (NDDI), and analyzed the potential relationship of these indices with climate change. Time series of satellite-based precipitation (June 2000-December 2020) and air temperature (January 1980-December 2020) were analyzed. A set of Landsat 8 OLI TIRS imagery from the driest and wettest months (2013-2020) was used to estimate NDVI, NDWI, and NDDI. These indices were evaluated separately for the sub-basins and river corridors in the dry and rainy seasons. The precipitation records indicate that in the Grande river sub-basin, precipitation is higher than in the Salado river sub basin. Normalized temperature anomalies and the GWI suggest a warming trend from 1994 to 2020, increasing up to 0.86 degrees C in the Salado River and 0.52 degrees C in the Grande River. The Grande and Salado sub basins showed significant differences between dry and wet seasons for each index (NDVI, NDWI, and NDDI). A Discriminant Analysis showed that the Salado sub-basin and the Salado River corridor are associated with severe drying conditions in the dry season (highest NDDI values). In the wet season, the Grande River corridor showed intermediate values of NDVI and NDWI but low values of NDDI. The Grande River corridor in the dry season was characterized by intermediate values of NDVI, NDWI, and NDDI. These river corridors provide environmental services in a trade-off with the stream and should be considered biodiversity hotspots. Due to the accentuated warming trend and the lowest precipitation, the Salado River sub-basin showed desertification signs associated with climate change. Both the Salado and the Grande River corridors showed resilience strategies to face climatic conditions.
英文关键词	dryland river endogenous and exogenous rivers remote sensing riparian vegetation drought analysis climate change
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000696844600001
WOS关键词	DIFFERENCE WATER INDEX ; VEGETATION ; QUALITY ; MEXICO ; ECOSYSTEMS ; NDWI
WOS类目	Environmental Sciences
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/2XILL650/363306
作者单位	[Sedeno-Diaz, Jacinto Elias] Inst Politecn Nacl, Coordinac Politecn Sustentabilidad, Mexico City, DF, Mexico; [Lopez-Lopez, Eugenia] Inst Politecn Nacl, Escuela Nacl Ciencias Biol, Lab Evaluac Salud Ecosistemas Acuat, Mexico City, DF, Mexico
推荐引用方式 GB/T 7714	Sedeno-Diaz, Jacinto Elias,Lopez-Lopez, Eugenia. The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacan-Cuicatlan Biosphere Reserve[J],2021,9.
APA	Sedeno-Diaz, Jacinto Elias,&Lopez-Lopez, Eugenia.(2021).The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacan-Cuicatlan Biosphere Reserve.FRONTIERS IN ENVIRONMENTAL SCIENCE,9.
MLA	Sedeno-Diaz, Jacinto Elias,et al."The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacan-Cuicatlan Biosphere Reserve".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2021).