气候变化领域集成服务门户(CCPortal): Greenness trends and carbon stocks of mangroves across Mexico

CCPortal

DOI	10.1088/1748-9326/ab246e
	Greenness trends and carbon stocks of mangroves across Mexico
	Vázquez-Lule A.; Colditz R.; Herrera-Silveira J.; Guevara M.; Rodríguez-Zúñiga M.T.; Cruz I.; Ressl R.; Vargas R.
发表日期	2019
ISSN	17489318
卷号	14 期号:7
英文摘要	Mangroves cover less than 0.1% of Earth's surface, store large amounts of carbon per unit area, but are threatened by global environmental change. The capacity of mangroves productivity could be characterized by their canopy greenness, but this property has not been systematically tested across gradients of mangrove forests and national scales. Here, we analyzed time series of Normalized Difference Vegetation Index (NDVI), mean air temperature and total precipitation between 2001 and 2015 (14 years) to quantify greenness and climate variability trends for mangroves not directly influenced by land use/land cover change across Mexico. Between 2001 and 2015 persistent mangrove forests covered 432 800 ha, representing 57% of the total current mangrove area for Mexico. We found a temporal greenness increase between 0.003[0.001-0.004] and 0.004[0.002-0.005] yr-1 (NDVI values ± 95%CI) for mangroves located over the Gulf of California and the Pacific Coast, with many mangrove areas dominated by Avicennia germinans. Mangroves developed along the Gulf of Mexico and Caribbean Sea did not show significant greenness trends, but site-specific areas showed significant negative greenness trends. Mangroves with surface water input have above ground carbon stocks (AGC) between 37.7 and 221.9 Mg C ha-1 and soil organic carbon density at 30 cm depth (SOCD) between 92.4 and 127.3 Mg C ha-1. Mangroves with groundwater water input have AGC of 12.7 Mg C ha-1 and SOCD of 219 Mg C ha-1. Greenness and climate variability trends could not explain the spatial variability in carbon stocks for most mangrove forests across Mexico. Site-specific characteristics, including mangrove species dominance could have a major influence on greenness trends. Our findings provide a baseline for national-level monitoring programs, carbon accounting models, and insights for greenness trends that could be tested around the world. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	mangrove forest; phenology; precipitation; seasonality; temperature
语种	英语
scopus关键词	Climate change; Groundwater; Land use; Organic carbon; Precipitation (chemical); Surface waters; Temperature; Global environmental change; Land use/land cover change; Mangrove forest; Normalized difference vegetation index; phenology; Seasonality; Site specific characteristics; Soil organic carbon densities; Forestry; Avicennia germinans; Rhizophoraceae
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154492
作者单位	Department of Plant and Soil Sciences, University of Delaware, Newark, DE, United States; Land Use and Finance for Innovation, Dirct. General CLIMA, European Commission, Brussels, Belgium; Centro de Investigación y de Estudios Avanzados, Unidad Mérida, Mérida, Yucatán, Mexico; Dirección General de Geomática, Comisión Nacional Para El Conocimiento y Uso de la Biodiversidad (CONABIO), Ciudad de México, Tlalpan, Mexico
推荐引用方式 GB/T 7714	Vázquez-Lule A.,Colditz R.,Herrera-Silveira J.,et al. Greenness trends and carbon stocks of mangroves across Mexico[J],2019,14(7).
APA	Vázquez-Lule A..,Colditz R..,Herrera-Silveira J..,Guevara M..,Rodríguez-Zúñiga M.T..,...&Vargas R..(2019).Greenness trends and carbon stocks of mangroves across Mexico.Environmental Research Letters,14(7).
MLA	Vázquez-Lule A.,et al."Greenness trends and carbon stocks of mangroves across Mexico".Environmental Research Letters 14.7(2019).