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地理科学  2012 

氢氧稳定同位素技术在生态系统水分耗散中的应用研究进展

, PP. 289-293

Keywords: 氢氧稳定同位素,蒸散(发),水分来源,碳同位素,叶片水,水分利用效率

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Abstract:

氢氧稳定同位素作为水的“DNA”,对于研究水分的传输和转化具有重要的意义,而水分耗散是水循环的重要组成部分。简单介绍氢氧稳定同位素在水分耗散研究中应用的主要原理和比较新的一些技术方法,主要对其在森林、草原生态系统和农田生态系统中蒸散发分离,植物水分来源区分、叶片水同位素富集和水分利用效率等方面做较为详细的归纳总结和探讨,最后指出国内此类研究仍然存在的问题和可能的发展方向,以期对未来氢氧稳定同位素技术在水分循环和水分耗散方面的应用研究有借鉴作用。

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