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作 者 ：陈英华,胡俊,李裕红,薛博,严重玲

期 刊 ：生态学报 2004年 24卷 5期 页码：1027~1033

关键词：碳稳定同位素；水分胁迫；碳同位素比值(δ13C)；碳同位素判别(Δ)；水分利用效率(WUE)；

Keywords:carbon stable isotope, water stress, carbon isotopic ratio, carbon isotopic discrimination, water use efficiency,

摘 要 ：植物体的碳稳定同位素组成主要由植物本身的生物学特性决定 ,但环境胁迫对其影响也十分明显。综述了碳稳定同位素技术在研究植物水分利用效率、生物量高低及判断历史气候依据等研究领域的进展 ,阐明了植物体的 δ1 3C值对干旱、盐分及其它环境因素的变化所引起的水分胁迫的响应 ,并对碳稳定同位素对水分胁迫的响应机理进行了归纳和推断。

Abstract:Carbon isotope composition is mostly determined by the biological characteristic of plants, but the influence of environmental stress is also evident and cannot be ignored. This article discusses the development of studies on the application of carbon isotope technology for water use efficiency (WUE), biomass, past climate; summarizes the response of δ~(13)C in plants to water stress caused by drought, salinity and other environment factors and deduces the responsive mechanism of carbon stable isotope to...

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