查詢結果分析
來源資料
相關文獻
- 穩定同位素在農業及生態環境上之應用
- Stable Isotope Studies of Marble/Schist in the Tungao Area, Northeastern Taiwan: Characteristics of the Metamorphic Fluid
- Stable-Isotope Studies of Amphibolite in the Tungao Area, Northeastern Taiwan
- 穩定同位素之醫學應用
- 淡水河在颱風期間懸浮顆粒物質之碳氮含量、同位素組成及輸出通量
- 氮穩定同位素與森林生態系
- Sulfide-bearing Quartz Veins in the Szeleng Sandstone, Chinmienshan, Northeastern Taiwan:A Preliminary Study on Fluid Inclusions and Stable Isotopes
- Stable Isotope Study of Insular Phosphorite Deposits: Preliminary C-And O-Isotope Results on the Deposit of the Lau Group, Fiji
- Meteoric Diagenesis and Stable Isotopic Compositions of the Hengchun Limestone, Southern Taiwan
- Carbon and Oxygen Isotopic Compositions of Planktonic Foraminifera from Recent Sediments off Northeastern Taiwan
頁籤選單縮合
題名 | 穩定同位素在農業及生態環境上之應用=Application of Stable Isotopes in Agriculture and Environmental Studies |
---|---|
作者姓名(中文) | 彭宗仁; 劉滄棽; 林幸助; | 書刊名 | 臺灣農業研究 |
卷期 | 55:2 民95.06 |
頁次 | 頁79-90 |
分類號 | 339.592 |
關鍵詞 | 穩定同位素; 同位素分化作用; 氣相同位素比值質譜儀; Stable isotope; Isotope fractionation; Gas isotope ratio mass spectrometer; |
語文 | 中文(Chinese) |
中文摘要 | 近20年由於「氣相同位素比值質譜儀」的改良和氫、氧、碳、氮和硫等穩定同位素的廣泛研究,穩定同位素的研究技術已實質增加我們對於這些元素在自然生態系中生地化循環的瞭解。雖然物質具相同之化學組成,但如果來源不同或經不同物理/化學過程所產生,其同位素比值會因同位素的分化作用而有差異。穩定同位素的研究主要是建立在此同位素分化作用所造成的同位素比值差異,而此同位素比值差異可被質譜儀測知。在了解造成此差異之原因後,進而幫助我們解釋環境變遷的訊息及意涵。為讓國內更多相關研究人員了解穩定同位素技術的可利用性,本文描述氣相同位素比值質譜儀之分析原理,及整理氫、氧、碳、氮和硫等同位素在農業及相關生態環境研究上應用的文獻。 |
英文摘要 | The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements. Although the products have same chemical compositions, they will exhibit various isotopic ratios if they produced from different sources or by different chemical/physical processes. The stable isotopic research is established by studying the discrepancy in isotope ratio, which was caused by isotope fractionation, and the isotopic ratio difference can be determined by mass spectrometer. After understanding the reasons that cause isotopic discrepancy; then we can further interpret the information and the meaning of environmental change. To let more domestic relevant researchers understand the applicable techniques of stable isotopes, this article not only introduces the principles of isotopes measurements by gas isotope ratio mass spectrometer, but also integrates the experiences of hydrogen, oxygen, carbon, nitrogen, and sulfur isotopes in agriculture and environmental applications that were described in papers. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。