Behavior of N2O in the atmosphere and making the global budget using nitrogen and oxygen isotope systematics

N2O 在大气中的行为以及利用氮氧同位素系统学制定全球预算

• 批准号: 07454136
• 负责人: TANAKA Noriyuki
• 金额: $ 4.93万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07454136/
• 关键词: nitrous oxide; global budget; subarctic sea; forest soil; 大気; 同位体; 温室効果; 沿岸; 生成; 土壌; 積雪; 海水; 海産堆積物; 北海道; 消費; 同位体効果

In order to missing source of NィイD22ィエD2O in the atmosphere, intensive observations have been carried out in coastal sea in East China Sea and Funka bay, Japan. The observation of the flux from soils in grass land and forest floor also was performed for the evaluation. The flux observed in the Funka Bay, Japan was unexpectedly high and exhibit large seasonal fluctuation. On the other hand, the flux observed in East China Sea is quite normal one. Fluxes from grass land and forest especially in snow fall season is unexpectedly high, indicating that winter flux of those area is significant contribution in the global nitrous oxide budget.

为了寻找大气中N_（22）N_（22）N_（22）D_（20）O的来源，在东海近海和日本丰贺湾进行了密集观测。通过对草地和林地土壤的通量观测，评价了该地区的土壤污染状况。在日本Funka湾观测到的通量出乎意料的高，并表现出很大的季节波动。而在东海海域观测到的通量是相当正常的。草地和森林的N2O排放通量尤其是在降雪季节出乎意料的高，表明这些地区的冬季N2O排放通量对全球N2O收支有重要贡献。

项目成果

N. Tanaka: "High precision mass spectrometric analysis of isotopic aburdance ratios in nitrous axide by direct injecotion of N_2O"J. Mass Spec. Ian Proc.. 142. 163-175 (1995)

N. Tanaka：“通过直接注入 N_2O 对一氧化二氮中同位素强度比进行高精度质谱分析”J。

Noriyuki Tanaka: "Ab Initio Study on Carbon Kinetic Isotope Effect(KIE)in the Reaction of CH_4+Cl." Journal of Atmospheric Chemistry. 23. 37-49 (1996)

Noriyuki Tanaka：“CH_4 Cl 反应中碳动力学同位素效应 (KIE) 的从头算研究”。

Noriyuki Tanaka: "High Precision mass spechomethic analysis of isotopic abundance ratios in ninous oyide by direct Injection of N_2O" Int.J.Mass Spectro.& Ion Process. 142. 163-175 (1995)

Noriyuki Tanaka：“通过直接注入 N_2O 对九氧化硫中同位素丰度比进行高精度质谱分析”Int.J.Mass Spectro。

田中教幸: "^<224>Ra distribition in surfave and deep water of Lond Island Sound : sources and horizousol trausport ratcs" Continmtal Shelf Research. 16 (12). 1545-1559 (1996)

Noriyuki Tanaka：“^<224>伦敦岛海峡表面和深水中的 Ra 分布：来源和地平线 trausport 老鼠”Continmtal Shelf Research 16 (12) 1545-1559 (1996)。

田中教幸: "海洋表面での二酸化炭素交換と炭素同位体比の関係" 月刊 海洋. 別外(11). 16-19 (1996)

田中纪之：“海洋表面二氧化碳交换与碳同位素比率的关系”月刊《海阳》特刊（11）（1996）。