The Anthropogenic Impact on Methane Concentrations and Fluxes in the Coastal Seas(II)

View Statistics Email Alert RSS Feed

Information

Details

Project title

Code/計畫編號

MOST108-2611-M019-021-MY3

Translated Name/計畫中文名

人為擾動對沿近海與海岸甲烷濃度和釋放量的影響(II)

Project Coordinator/計畫主持人

Hsiao-Chun Tseng

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Institute of Marine Environment and Ecology

Website

https://www.grb.gov.tw/search/planDetail?id=13327830

Year

2020

Start date/計畫起

01-07-2020

Expected Completion/計畫迄

30-06-2021

Bugetid/研究經費

1375千元

ResearchField/研究領域

海洋科學

甲烷為溫室效應氣體，對溫室效應的影響力僅在二氧化碳之後，現今全球大氣中的甲烷濃度比工業革命前增加約150%，而這些大氣中增加的甲烷濃度非常有可能是來自於人為活動的排放，然而甲烷釋放的來源和其釋放量卻尚未有所定論。雖然沿近海大陸棚區域和河口僅佔全球海洋面積的一小部分，然而他們卻貢獻了75%全球海洋甲烷的釋放量，並且未來由於全球暖化，沿岸海域甲烷的釋放量可能增加。沿近海域因為受人為活動影響很大，當陸源輸入物及海岸缺氧區域增加時，沿近海域甲烷的釋放量可能提升。然而，台灣在河口和其沿岸海域對甲烷濃度和其釋放量的相關研究非常少，因此希望針對台灣沿近海域與河口區域甲烷變化與環境因子的關係進行研究與，並納入社會經濟面向討論，以期提出溫室效應氣體減量的相關管理辦法。本研究將於近海、沿岸與河口採樣，並探討人為擾動對沿近海與海岸甲烷濃度和釋放量的影響。此研究將由淡水河及其週遭海域開始，未來將延伸至台灣其他河口和海岸，並期望能進行國際合作，研究不同國家和文化的沿近海人為活動對區域性自然環境的影響。 Methane (CH4) is one of the most important greenhouse gases and it accounts for 32% of anthropogenic global radiative forcing. The global atmospheric concentration of CH4 has increased about 150% compare to the pre-industrial value. This increase in CH4 concentration is very likely caused by anthropogenic activities. However, the relative contributions of different sources have not been well determined. Despite shelf areas and estuaries only represent a small part of the world's ocean, they contribute about 75% to the global oceanic emission. In addition, coastal CH4 emissions may increase in response to global warming. Coastal regions are strongly affected by anthropogenic activities when terrestrial input increases and coastal areas under hypoxia expand, more CH4 may be emitted. However, research on CH4 concentrations and emissions in estuarine and adjacent coastal sea is scarce in Taiwan. Moreover, although anthropogenic activities have a huge impact on the coastal area, the social-environmental analysis is lacking. Here, I would like to propose a research project called “The anthropogenic impact on methane concentrations and fluxes in the coastal seas.” First, this research is to understand the variations of CH4 concentrations and environmental conditions in the coastal area. Secondly, this research also includes socio-economic information, which can help us to understand how the human activities influence the coastal area and CH4 fluxes. By including and analyzing the environmental data and socio-economic information, it can help us to propose relevant management measures for greenhouse gases reduction and climate change mitigation. This research project plans to start from Tamsui River estuary and adjacent coastal sea. It will further extend to other estuaries and coastal areas in the future.

Keyword(s)

甲烷
溫室效應氣體
河口
甲烷菌生成作用
CH4
greenhouse gas
estuary
methanogenesis

DSpace CRIS

The Anthropogenic Impact on Methane Concentrations and Fluxes in the Coastal Seas(II)

Details

Description