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地球科学进展  2002, Vol. 17 Issue (3): 411-419    DOI: 10.11867/j.issn.1001-8166.2002.03.0411
全球变化研究     
流域盆地的风化作用与全球气候变化
李晶莹1,2,张经
1.青岛海洋大学化学化工学院,山东 青岛 266003;2.华东师范大学河口海岸国家重点实验室,上海 200062
WEATHERING OF WATERSHED BASINS AND GLOBAL CLIMATIC CHANGE
]LI Jing-ying1,ZHANG Jing1,2
1.College of Chemistry and Chemical Engineering, Ocean University of Qingdao,Qingdao 266003,China; 2.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062,China
 全文: PDF 
摘要:

介绍了岩石风化作用与流域盆地的物质输送对于研究全球海-陆物质循环和全球气候变化的重要意义。讨论了运用河流的颗粒相和溶解相载荷分别去估算机械剥蚀率和化学风化率的科学性及各种计算方法。从全球的观点对岩性、径流、地势、气候、植被以及人为活动 6个因素对于岩石风化作用及河流颗粒相和溶解相物质输送的影响进行了详细的讨论,得到岩性是决定机械剥蚀率和化学风化率的主导因素,径流和地势是影响河流颗粒物输送的重要因素,而径流和气候则对河流溶解离子的输送影响较大,此外植被和人为活动对河流化学及颗粒物输送的影响也越来越受到人们的关注。探讨了岩石化学风化作用消耗的CO2量及其对全球气候变化的影响,在此基础上,归纳了岩石化学风化作用与气候变化的模式。

关键词: 流域盆地机械剥蚀率化学风化率全球气候变化    
Abstract:

The weathering and riverine loads play an important role in studying the sea-land matter balance and global climatic change. The dissolved and particulate loads of the river are used to estimate the physical erosion and chemical weathering rates over the world drainage basins, respectively. The effect of the rock types, relief, runoff, climate, vegetation and human activity on  weathering are summarized in detail at a global scale. The rock types are responsible for the dissolved and particulate loads of the major world rivers .The correlation between the relief and runoff and particulate loads is stronger than the correlation between the climate and  particulate loads, while the climate and runoff have a critical
influence on chemical weathering and solute fluxes. More attentions are paid on the effect of vegetation and human activity on the dissolved and particulate loads. A preliminary linkage of the model  CO2 consumption by chemical weathering and the global climatic change is also examined based on the literature review.

Key words: Watershed basin    Physical erosion    Chemical weathering    Global climatic change.
收稿日期: 2001-03-16 出版日期: 2002-06-01
:  X142   
基金资助:

国家自然科学基金项目“东、黄海生态系统动力学与生物资源可持续利用”(编号:49736190)资助.

通讯作者: 李晶莹(1974-),女,河南新野人,博士生,主要从事河流化学和生物地球化学研究.E-mail:wxxljy2001@public.qd.sd.cn     E-mail: wxxljy2001@public.qd.sd.cn
作者简介: 李晶莹(1974-),女,河南新野人,博士生,主要从事河流化学和生物地球化学研究.E-mail:wxxljy2001@public.qd.sd.cn
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引用本文:

李晶莹,张经. 流域盆地的风化作用与全球气候变化[J]. 地球科学进展, 2002, 17(3): 411-419.

]LI Jing-ying,ZHANG Jing. WEATHERING OF WATERSHED BASINS AND GLOBAL CLIMATIC CHANGE. Advances in Earth Science, 2002, 17(3): 411-419.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2002.03.0411        http://www.adearth.ac.cn/CN/Y2002/V17/I3/411

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