CAJ | 학술논문

本文测定了中国3个典型泥炭沼泽四川红原、吉林金川和哈尼的现代沼泽植物中的碳、氧同位素组成。吉林金川和哈尼的沼泽在相似的气候和环境条件下发育演化，而四川红原的泥炭发育在截然不同的气候条件下。结果表明，每个泥炭沼泽现代植物中的碳、氧同位素均有较大的离散度，表现为不同营养状况下的成沼植物之间的同位素差异；从δ13C值来看，三个沼泽中的植物均属C3植物；红原与金川、哈尼有着明显不同的现代植物稳定氧同位素组成，前者更富集18O。同一泥炭植物碳、氧同位素的不均一性要求在利用泥炭沉积物恢复过去气候变化方面一定要谨慎。非常有意义的是贫营养泥炭(高位泥炭)的成沼植物有着非常接近的同位素组成，揭示贫营养型泥炭可能是更为理想的过去全球变化信息档案。
본문측정료중국3개전형니탄소택사천홍원、길림금천화합니적현대소택식물중적탄、양동위소조성。길림금천화합니적소택재상사적기후화배경조건하발육연화，이사천홍원적니탄발육재절연불동적기후조건하。결과표명，매개니탄소택현대식물중적탄、양동위소균유교대적리산도，표현위불동영양상황하적성소식물지간적동위소차이；종δ13C치래간，삼개소택중적식물균속C3식물；홍원여금천、합니유착명현불동적현대식물은정양동위소조성，전자경부집18O。동일니탄식물탄、양동위소적불균일성요구재이용니탄침적물회복과거기후변화방면일정요근신。비상유의의적시빈영양니탄(고위니탄)적성소식물유착비상접근적동위소조성，게시빈영양형니탄가능시경위이상적과거전구변화신식당안。
The Carbon and oxygen isotope compositions of the modern plants from Hongyuan, Jinchuan and Hani were analyzed. The Jinchuan and Hani peat bogs were developed in similar climate and environment, and the Hongyuan peat bog was formed in a different condition. The Carbon and oxygen isotopic values show big difference among various plants in each peat bog and all plants are of C3 plants. The plants from Hongyuan are enriched in　18O against those from Jinchuan and Hani, indicating the isotopic difference in various developing environments. The disparity of isotopic composition requires much caution in palaeoclimatic reconstruction with peat. It is very interesting that various oligotrophic plants have identical isotopic values, revealing that the oligotrophic peat may be as an ideal archive for resolving paleoclimatic signals.