"S. Toyoda,Naohiro Yoshida,T. Urabe,Y. Nakayama,T. Suzuki,K. Tsuji,KAZUHIKO SHIBUYA,S. Aoki,T. Nakazawa,S. Ishidoya,K. Ishijima,S. Sugawara,4 other authors","Temporal and latitudinal distributions of stratospheric N<sub>2</sub>O isotopomers",,"Journal of Geophysical Research",,"Vol. 109",,"pp. D08308",2004,Apr.
" 戸張　賀史,木庭　啓介,福島　慶太郎,徳地　直子・館野　隆之輔,大手　信人,鈴木　希実,豊田　栄,吉田　尚弘"," 安定同位体比を用いた森林生態系における硝酸の流出パターンの解析",," 第115回日本林学会大会",,,,,2004,
" 鈴木　希実,木庭　啓介,伊藤　雅之,尾坂　兼一,大手　信人,戸張　賀史,勝山　正則,山田　桂大,豊田　栄,吉田　尚弘"," 安定同位体比を用いた地球温暖化ガスの森林土壌中動態の再解釈",," 第115回日本林学会大会",,,,,2004,
" 豊田　栄,杉嶋　亮作,吉田　尚弘,町田　敏暢,遠嶋　康徳"," 沖縄・波照間島における大気中一酸化二窒素アイソトポマー比の長期観測",," 第10回大気化学討論会要旨集",,,,"pp. 11",2004,
" 菅原　敏,橋田　元,石戸谷　重之,森本　真司,青木　周司,本田　秀之,町田　敏暢,豊田　栄,中澤　高清,弦間　康二,並木　道義,飯嶋　一征,山内　恭"," クライオジェニックサンプラーを用いた南極上空における成層圏大気微量成分の観測",," 第27回極域気水圏シンポジウム",,,,,2004,
" Y. Tobari,K. Koba,K. Fukushima,N. Tokuchi,R. Tateno,N. Ohte,N. Suzuki,S. Toyoda,N. Yoshida"," Nitrate dynamics in forest ecosystems with various histories, using stable isotope measurements",,"Eos Trans. AGU (West. Pac. Geophys. Meet. Suppl.)",,"Vol. 85","No. 28","pp. Abstract B21A-03",2004,
" K. Koba,K. Osaka,Y. Tobari,S. Toyoda,N. Ohte,M. Katsuyama,N. Suzuki,M. Itoh,M.  Kawasaki,J. Kim,H. Yamagishi,N. Yoshida,T. Nakajima"," Characterization of groundwater N<sub>2</sub>O in a temperate forested ecosystem",,"Eos Trans. AGU (West. Pac. Geophys. Meet. Suppl.)",,"Vol. 85","No. 28","pp. Abstract B21A-02",2004,
" T. J. Clough,R. R. Sherlock,D. W. Griffith,S. R. Wilson,S. Toyoda,N. Yoshida"," Isotopomer signatures of nitrous oxide emissions from soils during nitrification, denitrification and chemodenitrification",,"Eos Trans. AGU (Fall Meet. Suppl.)",,"Vol. 85","No. 46","pp. Abstract B21A-0854",2004,
" S. Toyoda,H. Yamagishi,K. Koba,N. Yoshida"," Methods and some applications of isotopomer analysis to identify microbial sources and sinks of N<sub>2</sub>O",,"Eos Trans. AGU (Fall Meet. Suppl.)",,"Vol. 85","No. 46","pp. Abstract B11C-02",2004,
" 杉嶋　亮作,豊田　栄,吉田　尚弘,中川　書子,井上  元"," シベリア上空におけるN<sub>2</sub>Oアイソトポマー比",," 第4回大気化学シンポジウム講演集",,,,"pp. 177-179",2004,
"S. Toyoda,NAOHIRO YOSHIDA","Site-specific nitrogen isotope analysis in N<sub>2</sub>O by mass spectrometry",,"Handbook of stable isotope analytical techniques","Elsevier","Vol. 1",,"pp. 390-394",2004,
"豊田　栄,西村　誠一,山田　桂大,秋山　博子,木庭　啓介,須藤　重人,八木　一行,尾下　里美,藤村　栄貴,吉田　尚弘","農耕土壌から生成・放出されるN<sub>2</sub>Oのアイソトポマー比",,"第2回同位体科学研究会要旨集",,,,"pp. 61",2004,