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钙同位素在森林生态系统中的研究进展

Advances in the Study and Application of Calcium Isotopes in Forest Ecosystem
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摘要 钙作为植物必需的营养元素之一,对维持森林生态系统稳定有重要作用。本文综述了钙同位素的分析方法和分馏机理,并指出钙同位素分馏可以用来示踪森林系统中钙的来源及途径。在森林生态系统的研究中,土壤与植物之间的钙同位素分馏可以用于区域物质循环的估算。同时对利用钙同位素在森林生态系统对环境响应及生态系统演化应用进行了总结,并基于当前研究对未来采用钙同位素在生物地球化学循环的研究方向进行了展望。 Calcium (Ca) is an essential nutrient element and plays an important role in maintaining the forest ecosystem stability. In this paper, we reviewed the analysis methods of calcium isotopes and fractionation mechanisms. In the forest ecosystem, the fractionation of Ca isotopes between soil and various components of plants enables us to estimate a local Ca budget and provides a partial explanation for the scale of Ca isotopic variability in the system. In addition, we summarized the response of Ca isotopes to environmental change and soil evolution in the ecosystems. Finally, we looked forward to the future investigations into biogeochemistry pathways using stable Ca isotope ratios based on current research.
出处 《地球与环境》 CAS CSCD 北大核心 2014年第3期442-449,共8页 Earth and Environment
基金 国家自然科学基金(41325010) 国家重大科学研究计(2013CB956703) 中央高校基本科研业务费专项资金资助(2652013055)
关键词 钙同位素 森林生态系统 营养元素 calcium isotope forest ecosystem nutrient element
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