Loss on Ignition-Based Indices for Evaluating Organic Matter Characteristics of Littoral Sediments

Narong TOUCH; Tadashi HIBINO; Hiroki TAKATA; Satoshi YAMAJI

首页> 外文期刊>土壤圈（英文版） >Loss on Ignition-Based Indices for Evaluating Organic Matter Characteristics of Littoral Sediments

【24h】

Loss on Ignition-Based Indices for Evaluating Organic Matter Characteristics of Littoral Sediments

机译：基于点火指标的沿海沉积物有机质特征评估损失

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

页面导航

摘要
著录项
相关主题

摘要

Understanding organic matter characteristics (e.g.,amount and state) of sediments is necessary for evaluating both the sediment and water environments;however,methods that have been proposed to investigate these characteristics are relatively expensive.This study attempted to evaluate the organic matter characteristics of littoral sediments by employing solely the loss on ignition (LOI)method,which is the most economical and accessible method in developing countries.Different types of sediments were first oven dried at 100 ℃ and then continuously burned at 200,300,400,500,and 600 ℃ for 4 h at each temperature.The mass LOI at each temperature was calculated and compared with the 100 ℃ oven-dried weight.Our results suggested that the mass LOI across the temperature range of 200 300 ℃ (LOI200-300):mass LOI at 600 ℃ (LOI600) ratio (LOI200-300/LOI600) could represent different types of sediments as well as the organic matter:organic C ratio.Compared with the sediments unaffected by wastewater,the sediments that were more influenced by the inflow of domestic wastewater had a higher LOI200-300/LOI600.Interestingly,LOI200-300/LOI600 could also represent changes in the organic matter characteristics as a function of organic matter decomposition in sediments.In conclusion,the organic matter characteristics of littoral sediments could be evaluated using solely the LOI method,particularly with LOI200-300/LOI600.

机译：了解沉积物的有机物特征（例如数量和状态）对于评估沉积物和水环境都是必要的;但是，已提出的研究这些特征的方法相对昂贵。通过仅使用燃烧损失（LOI）方法沉积沉积物，这是发展中国家最经济，最容易获得的方法。将不同类型的沉积物首先在100℃下烘干，然后在200,300,400,500和600℃下连续燃烧4 h。计算每种温度下的质量LOI并与100℃烘箱干燥的重量进行比较。我们的结果表明，在200300℃（LOI200-300）的温度范围内的质量LOI：600℃下的质量LOI（LOI600比率（LOI200-300 / LOI600）可以代表不同类型的沉积物以及有机物：有机碳的比率。嗯，受生活污水流入影响较大的沉积物的LOI200-300 / LOI600较高。有趣的是，LOI200-300 / LOI600还可代表有机质特征的变化与沉积物中有机物分解的关系。结论是，沿岸沉积物的有机质特征可以仅通过LOI方法进行评估，尤其是使用LOI200-300 / LOI600。

著录项

来源
《土壤圈（英文版）》 |2017年第5期|978-984|共7页
作者
Narong TOUCH; Tadashi HIBINO; Hiroki TAKATA; Satoshi YAMAJI;
展开▼
作者单位

Coastal Engineering Laboratory, Department of Civil and Environmental Engineering, Hiroshima University, Kagamiyama 1-4-1,Higashihiroshima-Shi, Hiroshima 739-8527 Japan;

Coastal Engineering Laboratory, Department of Civil and Environmental Engineering, Hiroshima University, Kagamiyama 1-4-1,Higashihiroshima-Shi, Hiroshima 739-8527 Japan;

Coastal Engineering Laboratory, Department of Civil and Environmental Engineering, Hiroshima University, Kagamiyama 1-4-1,Higashihiroshima-Shi, Hiroshima 739-8527 Japan;

Coastal Engineering Laboratory, Department of Civil and Environmental Engineering, Hiroshima University, Kagamiyama 1-4-1,Higashihiroshima-Shi, Hiroshima 739-8527 Japan;

展开▼
收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 eng
中图分类
关键词

Loss on Ignition-Based Indices for Evaluating Organic Matter Characteristics of Littoral Sediments

摘要

著录项

相关主题

期刊订阅