| 河流有机质生物地球化学研究进展 |
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| 引用本文： | 魏秀国.河流有机质生物地球化学研究进展[J].生态环境,2007,16(3):1063-1067. |
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| 作者姓名： | 魏秀国 |
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| 作者单位： | 广东商学院旅游与环境学院,广东,广州,510320;广东省生态环境与土壤研究所,广东,广州,510650;华东师范大学河口海岸国家重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金;广东省国际科技合作计划;中国博士后科学基金;华东师范大学校科研和教改项目;广东省生态环境与土壤研究所青年人才基金 |
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| 摘 要： | 探讨了近年来河流中有机质的生物地球化学研究状况。大多数河流有机质的来源主要是外源即流域侵蚀而来的,经过河流的新陈代谢过程,把河流中的悬浮物分解为不同类型的有机质。在有机质分解过程中由于外部条件的差异,形成粒径大小不同的颗粒物和溶解有机质、无机质等。河流水体中的溶解有机碳(DOC)在全球不同纬度、不同区域,其含量差异较大,但目前对其生物地球化学控制的量级缺乏足够的理解和认识。另外碳氮同位素及其比值在当前的河流有机质生物地球化学研究中仍起着非常重要的示踪作用。
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| 关 键 词： | 河流 有机质 生物地球化学 |
| 文章编号： | 1672-2175（2007）0-1063-05 |
| 收稿时间： | 2007-05-12 |
| 修稿时间： | 2007-05-12 |
Progress in the study of biogeochemistry of riverine organic matter |
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| WEI Xiuguo.Progress in the study of biogeochemistry of riverine organic matter[J].Ecology and Environmnet,2007,16(3):1063-1067. |
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| Authors: | WEI Xiuguo |
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| Institution: | 1. Department of Tourism and Environment, Guangdong Institute of Business Studies, Guangzhou 510320, China; 2. Guangdong Institute of Ecooenvironment and Soil Science; Guangdong 510650, China; 3. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China |
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| Abstract: | The paper discussed the study of biogeochemistry condition of riverine organic matter in recent years. Riverine organic matter mainly input from local land-derived sources, drainage basin erosion,less autochthonous algal production. Riverine suspended matter was divided into different kinds of organic matter through its metabolism processes. Owing to diversity of external condition, organic matter was divided into different-sized particulate material, dissolved organic matter and inorganic matter. Riverine dissolved organic carbon (DOC) had much differentia at different latitude and area. We had obviously deficient cognized for its control magnitude and degree for its riverine biogeochemical processes in the study. In addition, carbon and nitrogen isotope and its ratio was important indicator in the riverine biogeochemistry study. |
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| Keywords: | river organic matter biogeochemistry |
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