CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO<sub>2</sub> CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying; ZHANG Jing

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CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying, ZHANG Jing

文章导航 > Chinese Geographical Science > 2005 > 15(1): 16-21

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. 中国地理科学, 2005, 15(1): 16-21.

引用本文:

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. 中国地理科学, 2005, 15(1): 16-21.

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. Chinese Geographical Science, 2005, 15(1): 16-21.

Citation:

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. Chinese Geographical Science, 2005, 15(1): 16-21.

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying¹,
ZHANG Jing^2,3

1.
School of Materials and Environmental Sciences, Qingdao University of Science & Technology, Qingdao 266042, P. R. China;
2.
Chemistry and Chemical Engineering College, Ocean University of China, Qingdao 266003, P. R. China;
3.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, P. R. China

基金项目: Undertheauspicesof Ministry of Science and Technology Project of China(No.G1999043075)

详细信息

作者简介:
LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

中图分类号: X13

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying¹,
ZHANG Jing^2,3

1.
School of Materials and Environmental Sciences, Qingdao University of Science & Technology, Qingdao 266042, P. R. China;
2.
Chemistry and Chemical Engineering College, Ocean University of China, Qingdao 266003, P. R. China;
3.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, P. R. China

摘要: Rock weathering plays an important role in studying the long-term carbon cycles and global climatic change. According to the statistics analysis, the Huanghe(Yellow)River water chemistry was mainly controlled by evaporite and carbonate weathering, which were responsible for over 90% of total dissolved ions. As compared with the Huanghe River basin, dissolved load of the Changjiang(Yangtze)River was mainly originated from the carbonate dissolution. The chemical weathering rates were estimated to be 39.29 t/(km²·a)and 61.58 t/(km²·a)by deducting the HCO₃^- derived from atmosphere in the Huanghe River and Changjiang River watersheds, respectively. The CO₂ consumption rates by rock weathering were calculated to be 120.84×10³ mol/km² and 452.46×10³ mol/km² annually in the two basins, respectively. The total CO₂ consumption of the two basins amounted to 918.51×10⁹ mol/a, accounting for 3.83% of the world gross. In contrast to other world watersheds, the stronger evaporite reaction and infirm silicate weathering can explain such feature that CO₂ consumption rates were lower than a global average, suggesting that the sequential weathering may be go on in the two Chinese drainage basins.
- Huanghe River basin /
- Changjiang River basin /
- chemical weathering rate /
- CO₂ consumption
Abstract: Rock weathering plays an important role in studying the long-term carbon cycles and global climatic change. According to the statistics analysis, the Huanghe(Yellow)River water chemistry was mainly controlled by evaporite and carbonate weathering, which were responsible for over 90% of total dissolved ions. As compared with the Huanghe River basin, dissolved load of the Changjiang(Yangtze)River was mainly originated from the carbonate dissolution. The chemical weathering rates were estimated to be 39.29 t/(km²·a)and 61.58 t/(km²·a)by deducting the HCO₃^- derived from atmosphere in the Huanghe River and Changjiang River watersheds, respectively. The CO₂ consumption rates by rock weathering were calculated to be 120.84×10³ mol/km² and 452.46×10³ mol/km² annually in the two basins, respectively. The total CO₂ consumption of the two basins amounted to 918.51×10⁹ mol/a, accounting for 3.83% of the world gross. In contrast to other world watersheds, the stronger evaporite reaction and infirm silicate weathering can explain such feature that CO₂ consumption rates were lower than a global average, suggesting that the sequential weathering may be go on in the two Chinese drainage basins.
- Huanghe River basin /
- Changjiang River basin /
- chemical weathering rate /
- CO₂ consumption

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CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying¹,
ZHANG Jing^2,3

1. School of Materials and Environmental Sciences, Qingdao University of Science & Technology, Qingdao 266042, P. R. China;

2. Chemistry and Chemical Engineering College, Ocean University of China, Qingdao 266003, P. R. China;

3. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, P. R. China

基金项目: Undertheauspicesof Ministry of Science and Technology Project of China(No.G1999043075)

作者简介:
LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

收稿日期: 2004-10-25
刊出日期: 2005-03-20

中图分类号: X13

关键词:

Huanghe River basin /

Changjiang River basin /

chemical weathering rate /

CO₂ consumption

摘要: Rock weathering plays an important role in studying the long-term carbon cycles and global climatic change. According to the statistics analysis, the Huanghe(Yellow)River water chemistry was mainly controlled by evaporite and carbonate weathering, which were responsible for over 90% of total dissolved ions. As compared with the Huanghe River basin, dissolved load of the Changjiang(Yangtze)River was mainly originated from the carbonate dissolution. The chemical weathering rates were estimated to be 39.29 t/(km²·a)and 61.58 t/(km²·a)by deducting the HCO₃^- derived from atmosphere in the Huanghe River and Changjiang River watersheds, respectively. The CO₂ consumption rates by rock weathering were calculated to be 120.84×10³ mol/km² and 452.46×10³ mol/km² annually in the two basins, respectively. The total CO₂ consumption of the two basins amounted to 918.51×10⁹ mol/a, accounting for 3.83% of the world gross. In contrast to other world watersheds, the stronger evaporite reaction and infirm silicate weathering can explain such feature that CO₂ consumption rates were lower than a global average, suggesting that the sequential weathering may be go on in the two Chinese drainage basins.

English Abstract

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

LI Jing-ying¹,
ZHANG Jing^2,3

1. School of Materials and Environmental Sciences, Qingdao University of Science & Technology, Qingdao 266042, P. R. China;

2. Chemistry and Chemical Engineering College, Ocean University of China, Qingdao 266003, P. R. China;

3. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, P. R. China

Received Date: 2004-10-25
Publish Date: 2005-03-20

Keywords:

Abstract: Rock weathering plays an important role in studying the long-term carbon cycles and global climatic change. According to the statistics analysis, the Huanghe(Yellow)River water chemistry was mainly controlled by evaporite and carbonate weathering, which were responsible for over 90% of total dissolved ions. As compared with the Huanghe River basin, dissolved load of the Changjiang(Yangtze)River was mainly originated from the carbonate dissolution. The chemical weathering rates were estimated to be 39.29 t/(km²·a)and 61.58 t/(km²·a)by deducting the HCO₃^- derived from atmosphere in the Huanghe River and Changjiang River watersheds, respectively. The CO₂ consumption rates by rock weathering were calculated to be 120.84×10³ mol/km² and 452.46×10³ mol/km² annually in the two basins, respectively. The total CO₂ consumption of the two basins amounted to 918.51×10⁹ mol/a, accounting for 3.83% of the world gross. In contrast to other world watersheds, the stronger evaporite reaction and infirm silicate weathering can explain such feature that CO₂ consumption rates were lower than a global average, suggesting that the sequential weathering may be go on in the two Chinese drainage basins.

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. 中国地理科学, 2005, 15(1): 16-21.

引用本文:

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. 中国地理科学, 2005, 15(1): 16-21.

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. Chinese Geographical Science, 2005, 15(1): 16-21.

Citation:

LI Jing-ying, ZHANG Jing. CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS[J]. Chinese Geographical Science, 2005, 15(1): 16-21.

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CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

作者简介: LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

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CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

作者简介: LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

English Abstract

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO2 CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

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目录

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

作者简介:
LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS

作者简介:
LI Jing-ying(1974- ),female,a native of Xinye of Henan Province,Ph.D.,associate professor,specialized in environ-mental geochemistry.E-mail:wxx1jy2001@public.qd.sd.cn.

CHEMICAL WEATHERING PROCESSES AND ATMOSPHERIC CO₂ CONSUMPTION OF HUANGHE RIVER AND CHANGJIANG RIVER BASINS