農田二氧化碳逸散與土壤碳吸存之研究

二氧化碳監測是農業生產及生態永續經營的重要工作，尤其是面對未來可王亟劇改變之氣候情景，農田二氧化碳逸散的收集及分析更顯得迫切。但農業是複雜的生態體系，包括氣候能量分布及碳素轉換機制，需更精確量測二氧化碳通量 (flux) 之瞬間變化，才能農田二氧化碳循環的產生、傳送及轉換有所瞭解。本文探討農田各項氣象通量之定義，量測方式及限制，並偵測水田 (水稻) 及旱田 (玉米) 之日、季及整年碳平衡之變化，以瞭解不同農田之碳循環。 The monitor of carbon dioxide is the key job for agricultural production and sustained ecosystem. Especially, facing on the possible fluctuated weather scenarios in the future, the collections ad analysis of carbon dioxide emission of agricultural field will be urgently important. Because agriculture is a complicated ecosystem included the distribution of weather energy and the conversion mechanism of carbon, the accurate measurement of carbon dioxide flux changes is necessary to understand the production, transport and conversion for carbon cycle in field.

Subjects

二氧化碳

通量

渦流相關系統

氣候變遷

碳封存

carbon dioxide

flux

eddy correlation system

carbon sequestration

Publisher

國立臺灣大學農業化學系

Type

conference paper