FTIR spectroscopy can be used as a screening tool for organic matter quality in regenerating cutover peatlands
FTIR spectroscopy can be used as a screening tool for organic matter quality in regenerating cutover peatlands
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DOI：
10.1016/j.soilbio.2007.09.019
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发表时间：
2008-02-01
影响因子：
9.7
通讯作者：
Francez, Andre-Jean
中科院分区：
文献类型：
--
作者：
Artz, Rebekka R. E.;Chapman, Stephen J.;Francez, Andre-Jean
植被的变化，在恢复割除泥炭地留下的遗产方面的有机质质量的新形成的泥炭。因此，目前大规模恢复泥炭地的努力需要低成本和高通量的技术来监测有机物的演变。在这项研究中，我们评估的优点，使用傅里叶变换红外（FTIR）光谱预测泥炭样品中的有机物组成在不同阶段的泥炭地再生从五个欧洲国家。使用预测偏最小二乘（PLS）分析，我们能够重建泥炭碳氮比和碳水化合物的签名具有合理的准确性，但不是微形态组成的植被仍然。尽管利用不同的大小部分，碳水化合物（< 200 μ m的部分）和FTIR（散装土壤）分析报告的泥炭中的植物细胞壁成分的组成，因此基本上揭示了父母的植被材料的组成。基于FTIR的PLS模型的C：N比和碳水化合物的签名的准确性是足够的，允许他们使用的初始筛选工具，在评估目前和未来的有机物组成的泥炭在监测恢复工作。(c)2007爱思唯尔有限公司保留所有权利。
Vegetational changes during the restoration of cutover peatlands leave a legacy in terms of the organic matter quality of the newly formed peat. Current efforts to restore peatlands at a large scale therefore require low cost and high throughput techniques to monitor the evolution of organic matter. In this study, we assessed the merits of using Fourier transform infrared (FTIR) spectra to predict the organic matter composition in peat samples at various stages of peatland regeneration from five European countries. Using predictive partial least squares (PLS) analyses, we were able to reconstruct peat C:N ratio and carbohydrate signatures with reasonable accuracy, but not the micromorphological composition of vegetation remains. Despite utilising different size fractions, both carbohydrate (< 200 mu m fraction) and FTIR (bulk soil) analyses report on the composition of plant cell wall constituents in the peat and therefore essentially reveal the composition of the parent vegetational material. The accuracy of the FTIR-based PLS models for C:N ratios and carbohydrate signatures was adequate to allow for their use as initial screening tools in the evaluation of the present and future organic matter composition of peat during monitoring of restoration efforts. (c) 2007 Elsevier Ltd. All rights reserved.