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Sediment Geochemistry, Accumulation Rates and Forest Structure in a Large Tropical Mangrove Ecosystem

在一个大热带红树属植物生态系统的沉积地球化学,累积率和福雷斯特结构

作     者:Ruiz-Fernandez, A. C. Agraz-Hernandez, C. M. Sanchez-Cabeza, J. A. Diaz-Asencio, M. Perez-Bernal, L. H. Keb, C. A. Chan Lopez-Mendoza, P. G. Blanco y Correa, J. M. Ontiveros-Cuadras, J. F. Osti Saenz, J. Reyes Castellanos, J. E. 

作者机构:Univ Nacl Autonoma Mexico Unidad Acad Mazatlan Inst Ciencias Mar & Limnol Calz Joel Montes Camarena S-N Mazatlan 82000 Sinaloa Mexico Univ Autonoma Campeche Inst EXPOMEX Ave Heroe Nacozari 480Campus 6 Invest San Francisco Campeche Campeche Mexico Univ Nacl Autonoma Mexico Unidad Acad Proc Ocean & Costeros Inst Ciencias Mar & Limnol Ciudad UnivCircuito Exterior S-N Mexico City 04510 DF Mexico Ctr Estudios Ambientales Cienfuegos Carretera Castillo Jagua Km 1-5 Cienfuegos 59350 Cuba Univ Autonoma Campeche Fac Ciencias Quim Biol Ave Agustin Melgar S-N Entre Juan de la Barrera & San Francisco Campeche 24039 Campeche Mexico Univ Autonoma Nayarit Ciudad Cultura Amado Nervo Tepic 63155 Nayarit Mexico Univ Politecn Sinaloa UPSIN Carretera Libre Mazatlan Higueras Km 3 Mazatlan 82199 Mexico 

出 版 物:《WETLANDS》 (湿地:国际湿地科学家学会志)

年 卷 期:2018年第38卷第2期

页      面:307-325页

核心收录:

学科分类:0830[工学-环境科学与工程(可授工学、理学、农学学位)] 08[工学] 0713[理学-生态学] 

基  金:Federal Electricity Commission [CFE-GEIC/UAC-LHC/009-2014] Consejo Nacional de Ciencia y Tecnologia [CONACyT CB2010-153492] UNAM-UAC 2988-221-8-X-92 

主  题:Marismas Nacionales system San Pedro Mezquital River Mangrove forest attributes Pb-210 dating Gulf of California Mexican Pacific 

摘      要:We evaluated the forest structure, pore water salinity, geochemical characteristics, grain-size distribution and sediment accumulation rates (SAR) in 15 mangrove sites along the San Pedro Mezquital River, one of the major sources of fresh water supply to the Marismas Nacionales System. Sediments were sandy-silty with high organic matter content (5.8 +/- 1.5% to 23.6 +/- 1.7%). The marine (Na, Cl and Br) and terrigenous (Al, Ti, Rb and Zr) elements indicated that sediments were mostly of continental provenance, with small marine contribution. SAR ranged from 0.08 +/- 0.01 to 2.29 +/- 0.28 cm yr(-1). Laguncularia racemosa was the dominant species in the northern sites (between Toluca Lagoon and Mexcaltitan Lagoon), with a mean basal area of 11.1-49.3 m(2) ha(-1), whereas Rhizophora mangle prevailed in the southern sites, closer to the river mouth (between Boca Camichin and Los Limones River, mean basal area of 2.0-11.0 m(2) ha(-1)). The southern area was characterized by lower forest attributes, and higher pore water salinity and sediment accumulation rates than the northern area. We concluded that mangrove preservation along SPMR requires insuring appropriate fresh water and sediment supply, and the control of organic matter pollution sources.

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