核磁共振技术在森林凋落物分解研究中的应用

发布时间：2018-04-17 05:19

本文选题：核磁共振 + 森林　；参考：《生态学杂志》2017年11期

【摘要】：凋落物分解是连接森林生态系统地上和地下部分的关键过程,影响着森林生态系统的养分循环,对全球碳(C)循环和森林生态系统生产力具有重要的调控作用。特别是,在当前全球气候变化的背景下,研究森林凋落物不同有机C组分的分解动态对于了解土壤有机质的形成、稳定性及其对气候变化的反馈效应至关重要。核磁共振技术(NMR)具有无损和非侵入等特点,是研究有机化合物结构的有效手段,已在凋落物分解研究中得到广泛应用。本文概述了NMR技术应用于森林凋落物分解过程的最新研究进展,包括森林凋落物有机C基团的NMR特征,凋落物分解过程中不同C基团的变化特征及其机理、凋落物分解过程的NMR评价指标等,并分析了NMR技术在凋落物分解研究中存在的问题和未来研究方向。NMR技术将有助于了解凋落物有机C基团的分解特征及其对土壤有机质形成和稳定的影响机理。
[Abstract]:Litter decomposition is a key process connecting the aboveground and underground parts of forest ecosystem, which affects the nutrient cycle of forest ecosystem, and plays an important role in regulating the global carbon C (C) cycle and forest ecosystem productivity.In particular, under the background of global climate change, it is very important to study the decomposition dynamics of different organic C components of forest litter in order to understand the formation, stability of soil organic matter and its feedback effect on climate change.Nuclear magnetic resonance (NMR) is an effective method to study the structure of organic compounds and has been widely used in litter decomposition because of its noninvasive and noninvasive characteristics.In this paper, the latest research progress in the application of NMR technology to the decomposition of forest litter was summarized, including the NMR characteristics of organic C groups in forest litter, the variation characteristics and mechanism of different C groups in the decomposition process of forest litter.NMR evaluation index of litter decomposition process, etc.The existing problems of NMR technology in litter decomposition and the future research direction. NMR technology will be helpful to understand the decomposition characteristics of organic C group in litter and its influence mechanism on the formation and stability of soil organic matter.
【作者单位】：福建农林大学林学院;
【基金】：国家自然科学基金项目(41603081) 土壤与农业可持续发展国家重点实验室开放课题(Y20160022) 福建农林大学林学院青年基金项目(61201400821)资助
【分类号】：S714

【相似文献】