The Exchange of Reduced Sulfur Gases Across the Atmosphere-Terrestrial Biosphere Interface

The Exchange of Reduced Sulfur Gases Across the Atmosphere-Terrestrial Biosphere Interface

  본 논문에서는 최근의 자료를 활용하여 지구적규모의 황순환현상에 대한 심각성을 논하였다. 첫째 장에서, 해양환경과 같이 주요한 황화합물들의 reservoir에 대해 다루었다. 둘째 및 셋째 장에서는 개개의 화학적 구성요소의 상대적 주요성을 중심으로 토양생태계의 순환을 다루었다. 그리고 특히 셋째 장에서는 이미 발표된 황화합물의 방출계수들을 집중적으로 비교하고 개개의 환경에 대한 대표적인 방출치를 제시하였다. 넷째 장에서는 이들 화합물을 생성하는 발생원들에 대해 논하였다 다섯째에서 일곱째 장에서는 이런 순환을 조절하는 요소, 황화합물들의 환경학적 운명, 결론을 취급하였다.

  In this review, the significance of terrestrial ecosystems in the global sulfur budget has been reviewed based on the currently available databases covering the topic. In the section 1, we describe our current understanding of natural sulfur cycle in relation to most well-known natural reservoir, oceanic environment. The sections 2 and 3 provide the fundamental pictures of the terrestrial sulfur cycle with respect to the relative importance of its individual chemical components and of source components, respectively. In the section 3, previously reported flux values for several major sulfur gases are presented for each reservoir and are intercompared to derive representative fluxes for the respective environment. In the section 4, source mechanisms for volatile sulfur species are dealt for both micro scale and macroscale processes leading to their productions. In the section 5, environmental factors controlling the exchange of biogenic sulfur gases across the air-surface interface have been discussed. In the section 6, environmental fate of sulfur gases released into the atmosphere has been described. Finally in the section 7, as concluding remarks, we discuss directions and suggestions to overcome various limitations encountered from previous measurement investigations of natural sulfur cycle in diverse natural ecological systems.