Mineralization of Goethite-Adsorbed and -Encapsulated Organic Carbon and Its Priming Effect in Paddy Soil [针铁矿吸附态和包裹态有机碳在稻田土壤中的矿化及其激发效应]

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成果类型：

期刊论文

作者：

江家彬;祝贞科;林森;李宇虹;李科林;...

通讯作者：

Zhu, Z.;Wang, X.

作者机构：

[王小利] Agricultural College of Guizhou University, Guiyang, 550025, China

[李宇虹; 吴金水; 葛体达; 祝贞科] Key Laboratory of Agro Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China

[李科林] School of Environmental Science and Engineering, Central South Forestry University, Changsha, 410004, China

[江家彬] Agricultural College of Guizhou University, Guiyang, 550025, China, Key Laboratory of Agro Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China

[林森] Key Laboratory of Agro Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China, School of Environmental Science and Engineering, Central South Forestry University, Changsha, 410004, China

通讯机构：

[Wang, X.] A

[Zhu, Z.] K

Agricultural College of Guizhou UniversityChina

Key Laboratory of Agro Ecological Processes in Subtropical Region, China

语种：

中文

关键词：

水稻土;碳铁复合物;碳同位素标记;激发效应;碳固持

关键词(英文)：

Carbon isotope labeling;Carbon sequestration;Carbon-goethite association;Paddy soil;Priming effect

期刊：

土壤学报

ISSN：

0564-3929

年：

2022

卷：

期：

页码：

1530-1539

DOI：

10.11766/trxb202005050215

基金类别：

* 国家自然科学基金项目（41761134095，41877104，31860160）资助 Supported by the National Natural Science Foundation of China（Nos. 41761134095，41877104，and 31860160）

机构署名：

本校为其他机构

院系归属：

环境科学与工程学院

摘要：

南方水稻土富含铁氧化物,土壤有机碳通过与铁氧化物结合的形式长期固存于土壤中;由于土壤中氧化铁和有机碳主要通过吸附、键和与包裹等形式存在,所以不同的碳铁复合物的稳定性存在一定的差异。尽管已有较多研究分析了土壤中有机碳与铁矿的结合与赋存形式,但是有机碳与铁矿间的结合方式对有机碳在水稻土中矿化及其激发效应的影响机制尚不明确。以葡萄糖为典型小分子外源有机碳,通过制备针铁矿吸附态葡萄糖和包裹态葡萄糖,采用室内模拟培养实验,研究两种铁矿结合态葡萄糖在淹水水稻土中的矿化特征及其激发效应。结果表明:与单独添加葡萄糖处理相比,碳铁复合物的添加分别使CO2和13CO2释放量增加了0...

摘要(英文)：

(Objective)The paddy soil in South China rich in iron oxides has soil organic carbon (OC) stored for a long time in association with iron oxides. As the iron oxide and organic carbon in the soil exist mainly in adsorbed-, bonded, and encapsulated forms, the carbon-goethite association vary in stability with the form. Although a large volume of studies have analyzed how OC and iron oxides associate in the soil and what form they exist in. However, so far little is known about mechanism of the association, relative to type, between iron oxides an...

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Mineralization of Goethite-Adsorbed and -Encapsulated Organic Carbon and Its Priming Effect in Paddy Soil [针铁矿吸附态和包裹态有机碳在稻田土壤中的矿化及其激发效应]

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