SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

GAO Quan-zhou; SHEN Cheng-de; SUN Yan-min; YI Wei-xi; FU Jia-mo; SHENG Guo-ying

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SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

GAO Quan-zhou, SHEN Cheng-de, SUN Yan-min, YI Wei-xi, FU Jia-mo, SHENG Guo-ying

文章导航 > Chinese Geographical Science > 2000 > 10(4): 302-308

GAO Quan-zhou, SHEN Cheng-de, SUN Yan-min, YI Wei-xi, FU Jia-mo, SHENG Guo-ying. SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA[J]. 中国地理科学, 2000, 10(4): 302-308.

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SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

1.
Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;
2.
Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

基金项目: This project was supported financially by the National Natural Science Foundation of China(No.49901002),the key funds of reeources and eco-environmental research of the CAS(No.KZ952-J1-402), a funds of the state key laboratory of organic geochemistry, and Guangdong Province Science Funds (No.984131).

详细信息

中图分类号: P592

SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

1.
Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;
2.
Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

摘要: Water samples were collected and analyzed in high water season (July 1997) and in middle water season (October, 1997) from two main lower reach gauge stations of the Zhujiang (Pearl) River, namely Hekou and Makou, respectively. Content of particulate organic carbon is always higher than that of dissolved organic carbon in both seasons, which is obviously different from the global average pattern, i.e. dissolved organic carbon is the dominant component of the transported riverine organic carbon. The content of dissolved and particulate organic carbon changes with the water levels in a direct ratio. The percentage of organic carbon in total suspended substance changes with the content of total suspended substance in an inverse ratio. The more intense is the soil erosion in the drainage, the more concentrated is the riverine organic carbon in the river. The contribution of autochthonous organic carbon is larger in high water season than in middle water season.
- organic carbon flux /
- seasonal variation /
- soil erosion /
- Zhujiang River
Abstract: Water samples were collected and analyzed in high water season (July 1997) and in middle water season (October, 1997) from two main lower reach gauge stations of the Zhujiang (Pearl) River, namely Hekou and Makou, respectively. Content of particulate organic carbon is always higher than that of dissolved organic carbon in both seasons, which is obviously different from the global average pattern, i.e. dissolved organic carbon is the dominant component of the transported riverine organic carbon. The content of dissolved and particulate organic carbon changes with the water levels in a direct ratio. The percentage of organic carbon in total suspended substance changes with the content of total suspended substance in an inverse ratio. The more intense is the soil erosion in the drainage, the more concentrated is the riverine organic carbon in the river. The contribution of autochthonous organic carbon is larger in high water season than in middle water season.
- organic carbon flux /
- seasonal variation /
- soil erosion /
- Zhujiang River

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SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

收稿日期: 1999-11-18
刊出日期: 2000-12-20

中图分类号: P592

关键词:

organic carbon flux /

seasonal variation /

soil erosion /

Zhujiang River

摘要: Water samples were collected and analyzed in high water season (July 1997) and in middle water season (October, 1997) from two main lower reach gauge stations of the Zhujiang (Pearl) River, namely Hekou and Makou, respectively. Content of particulate organic carbon is always higher than that of dissolved organic carbon in both seasons, which is obviously different from the global average pattern, i.e. dissolved organic carbon is the dominant component of the transported riverine organic carbon. The content of dissolved and particulate organic carbon changes with the water levels in a direct ratio. The percentage of organic carbon in total suspended substance changes with the content of total suspended substance in an inverse ratio. The more intense is the soil erosion in the drainage, the more concentrated is the riverine organic carbon in the river. The contribution of autochthonous organic carbon is larger in high water season than in middle water season.

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SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

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SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China; 2. Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

English Abstract

SEASONAL VARIATIONS OF RIVERINE ORGANIC CARBON CONTENTS IN MAKOU AND HEKOU GAUGE STATIONS OF THE ZHUJIANG RIVER, CHINA

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China; 2. Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

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目录

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640, P. R. China