闽江河口感潮湿地入侵种互花米草甲烷通量及影响因子

doi:10.13249/j.cnki.sgs.2008.06.826

地理科学 ›› 2008, Vol. 28 ›› Issue (6): 826-832.doi: 10.13249/j.cnki.sgs.2008.06.826

闽江河口感潮湿地入侵种互花米草甲烷通量及影响因子

仝川, 闫宗平, 王维奇, 曾从盛

福建师范大学亚热带湿地研究中心湿润亚热带生态地理过程省高校重点实验室福建师范大学地理科学学院, 福建福州 350007

收稿日期:2008-04-28 修回日期:2008-08-21 出版日期:2008-11-20 发布日期:2008-11-20
作者简介:仝川(1964- ),男,河北定洲人,教授,博士,研究方向为湿地生物地球化学循环。E-mail:tongch@fjnu.edu.cn
基金资助:
国家自然科学基金项目(40671174)、福建省自然科学基金项目(2006J0128)、福建省自然地理学重点学科项目资助。

Methane Flux from Invasive Species (Spartina alterniflora) and Influencing Factors in the Min River Estuary

TONG Chuan, YAN Zong-ping, WANG Wei-qi, ZENG Cong-sheng

Research Centre of Wetlands in Sub-tropical Regions, Fujian Normal University; Key Laboratory of Humid Sub-tropical Eco-geo Process of Fujian Universities; School of Geographical Sciences, Fujian Normal University, Fuzhou, Fujian 350007

Received:2008-04-28 Revised:2008-08-21 Online:2008-11-20 Published:2008-11-20

摘要/Abstract

摘要： 2007年利用静态箱-气相色谱仪法对闽江河口湿地外来入侵种互花米草斑块甲烷通量进行测定。结果表明,互花米草甲烷排放通量有明显的季节变化,涨潮前和落潮后甲烷通量平均值分别为13.12和12.94mg/(m²·h);涨落潮过程,互花米草斑块排放到潮水的甲烷通量(3.07mg/(m²·h)大于排放到大气的甲烷通量(2.35mg/(m²·h),差异不显著;涨落潮过程中排向大气和潮水的甲烷通量之和(5.42mg/(m²·h)与涨潮前、落潮后甲烷通量差异显著;互花米草排向大气甲烷总通量86.86g/(m²·a),排向潮水甲烷总通量7.84g/(m²·a)。

Abstract: In 2007, the enclosed chamber technique was used and the measurements on methane flux from Spartina alterniflora were taken during three periods (before the flood, in the course of rising and ebbing tide, and after the ebb) in the Shanyutan wetland which is the largest wetland in the Min River estuary region. The results showed that methane fluxes had obvious seasonal variation. The average methane flux from S.alterniflora before flood and after ebb were 13.12 and 12.94 mg/(m²·h) respectively; the monthly methane flux was lower after the ebb in some months, whereas in other months, emission was either higher after the ebb, or there was no difference; in the course of rising and ebbing tide, the methane flux [3.07 mg/(m²·h)]to hydrosphere was higher than that [2.35 mg/(m²·h)]to atmosphere(p＞0.05); the total methane flux to atmosphere and hydrosphere from invasive S.alterniflora patches was 86.86 and 7.84 g/(m²·h)respectively. The correlations between methane flux from S.alterniflora and temperature and salinity were lower, and was higher between methane flux and moisture of sediment (0-20 cm).

中图分类号:

P593

仝川, 闫宗平, 王维奇, 曾从盛. 闽江河口感潮湿地入侵种互花米草甲烷通量及影响因子[J]. 地理科学, 2008, 28(6): 826-832.

TONG Chuan, YAN Zong-ping, WANG Wei-qi, ZENG Cong-sheng. Methane Flux from Invasive Species (Spartina alterniflora) and Influencing Factors in the Min River Estuary[J]. SCIENTIA GEOGRAPHICA SINICA, 2008, 28(6): 826-832.

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闽江河口感潮湿地入侵种互花米草甲烷通量及影响因子

Methane Flux from Invasive Species (Spartina alterniflora) and Influencing Factors in the Min River Estuary

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