DOI: 10.1016/j.atmosenv.2015.02.036
Scopus记录号: 2-s2.0-84922975600
论文题名: Greenhouse gas emissions from coastal freshwater wetlands in Veracruz Mexico: Effect of plant community and seasonal dynamics
作者: Marín-Muñiz J ; L ; , Hernández M ; E ; , Moreno-Casasola P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 107 起始页码: 107
结束页码: 117
语种: 英语
英文关键词: Carbon dioxide
; Marshes
; Methane
; Nitrous oxide
; Swamps
Scopus关键词: Carbon
; Carbon dioxide
; Drought
; Gas emissions
; Global warming
; Greenhouse effect
; Methane
; Nitrogen oxides
; Redox reactions
; Water
; Water levels
; Wetlands
; Atmospheric concentration
; Freshwater marshes
; Freshwater wetlands
; Global warming potential
; Marshes
; Nitrous oxide
; Swamps
; Tropical latitudes
; Greenhouse gases
; carbon dioxide
; fresh water
; methane
; nitrous oxide
; rain
; well water
; atmospheric pollution
; carbon dioxide
; carbon emission
; global warming
; greenhouse gas
; methane
; nitrous oxide
; plant community
; redox potential
; swamp
; Article
; carbon footprint
; chemical analysis
; coastal plain
; coastal waters
; dynamics
; greenhouse effect
; marsh
; Mexico
; nonhuman
; oxidation reduction potential
; plant community
; precipitation
; priority journal
; seasonal variation
; soil
; soil temperature
; swamp
; total organic carbon
; water sampling
; wetland
; Mexico [North America]
; Veracruz
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Wetlands play an important role in modulating atmospheric concentrations of Greenhouse Gases (GHGs), such as methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2). Despite the fact that ~30% of wetlands in the world occur in tropical latitudes, little is known about GHG emissions from these ecosystems and the variables that control such emissions. We investigated the CH4, N2O and CO2 emissions in tropical freshwater marshes (FM) and swamps (FS) on the coastal plain of Veracruz, Mexico. GHGs were measured every two months using the closed chamber technique from April 2010 to February 2012 (CH4 and N2O) and during the last year for CO2. The ranges of the emissions were 20-2000mgC-CH4 m-2d-1, -2-16mgN-N2O m-2d-1 and 0.5-18gC-CO2 m-2d-1. There were not significant differences in the emissions between FM and FS (P=0.314, 0.528 and 0.213 for CH4, N2O, and CO2, respectively). However, significant differences (P<0.001) in CH4 and CO2 emissions were found in the different seasons. During the rainy and windy seasons, the water level was higher than during dry season, this enhanced reduced conditions in the soils and caused significantly higher (P<0.05) CH4 emissions (>364mgm-2d-1) than during dry season (<150mgm-2d-1). The opposite was observed for CO2 emissions, during dry season, wetland soils were more aerobic and CO2 fluxes increased (FM: 11±2, FS: 12±1gm-2d-1). N-N2O emissions (FM: 1.5±0.96, FS: 2.4±0.9mgm-2d-1) were similar during different climatic season (P=0.056). Based on the global warming potential, CH4 was the main contributor to total GHGs emission during the rainy and windy seasons (75-93%), while CO2 was predominant during the dry season (79.6%) and N2O contributed with less than 7% in the three seasons. Water level and redox potential were found to be main factors influencing GHG emissions in these wetlands. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81914
Appears in Collections: 气候变化事实与影响
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作者单位: Centro de Investigaciones Tropicales, Universidad Veracruzana, Casco de la Ex-Hacienda Lucas Martín, Privada de Araucarias S/N. Col. Periodistas, AP. 525, Xalapa, Veracruz, Mexico; Institute of Ecology A.C, Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz, Mexico
Recommended Citation:
Marín-Muñiz J,L,, Hernández M,et al. Greenhouse gas emissions from coastal freshwater wetlands in Veracruz Mexico: Effect of plant community and seasonal dynamics[J]. Atmospheric Environment,2015-01-01,107