[1]张娜,张心昱,高鲁鹏.长期监测水体可溶性有机碳变化趋势与影响因子研究进展[J].水土保持研究,2009,16(03):286-290.
　ZHANG Xin-yu,GAO Lu-peng.Overview on the Increasing Trends and Their Influencing Factors of Long-term Monitoring of Water Dissolved Organic Carbon[J].Research of Soil and Water Conservation,2009,16(03):286-290.
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长期监测水体可溶性有机碳变化趋势与影响因子研究进展

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年03期 页码: 286-290 栏目: 出版日期: 2009-06-20
Title:
Overview on the Increasing Trends and Their Influencing Factors of Long-term Monitoring of Water Dissolved Organic Carbon
作者:
张娜1,3, 张心昱1, 高鲁鹏1,2
1. 中国生态系统研究网络(CERN)水分分中心, 中国科学院 地理科学与资源研究所, 北京 100101;
2. 国家科技基础条件平台中心, 北京 100862;
3. 中国科学院 研究生院, 北京 100049
Author(s):
ZHANG Xin-yu1,3, GAO Lu-peng1
1. The Sub-Center for Water Monitoring and Research, Chinese Ecosystem Research Network, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. National Science and Technology Infrastructure Center, Beijing 100862, China;
3. Gradute University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
可溶性有机碳; 长期监测; 变化趋势; 影响因子
Keywords:
dissolved organic carbon; long term monitoring; variation trend; influencing factor
分类号:
X824;P342
摘要:
美国、欧洲等长期监测表明，地表水体可溶性有机碳（DOC）有逐渐增高的趋势，水体DOC增高将导致地表水有机酸增加、pH变化缓冲能力增加、水体颜色增加、水体可见光和紫外光穿透能力降低等，也会对淡水养殖业、饮用水质量、河口和沿海生态系统、碳循环带来广泛的影响。大多数河流有机碳的浓度对水文过程响应非常敏感，流域的地质和岩石特征影响着河流水体的DOC含量。在空间分布上，DOC同温度呈反相关，但在时间变化和特定监测点位，水中DOC同温度呈正相关。酸沉降、CO2浓度增高和氮富集等变化也可能影响地表水体DOC的变化。中国生态系统研究网络（CERN）唯有三江湿地站从2004年开始监测地表水中DOC含量，其他关于水体DOC变化的长期监测和影响因子研究很少，在我国典型生态系统开展地表水、土壤水DOC长期监测与影响因子研究具有重要的意义。
Abstract:
There are long-term increases in surface water dissolved organic carbon(DOC) on the American and the European long-term monitoring sites. Dissolved organic carbon affects the functioning of aquatic ecosystems through its influence on the increases in organic acid, acid neutralizing capacity, water colour, and on the decreases in penetrability of visible light and ultraviolet light. It also affects freshwater aquaculture, drinking water quality, estuarine and marine ecosystems, as well as a transfer of carbon from terrestrial to aquatic and marine ecosystems, forms a significant component of the global carbon cycle. The DOC concentrations in most of the rivers are very sensitive to the response of hydrological process, and to the background of watershed soil and geology. Spatially, there is a negative relationship between dissolved organic carbon and temperature. However, the influence of temperature on temporal variations at an individual site appears very different. It has been suggested that temperature, acid deposition change, atmospheric CO2 and nitrogen enrichment were potential drivers of change in DOC in surface water. There are few long-term monitoring and research about surface water dissolved organic carbon in China except the Sanjiang wetland site of Chinese Ecosystem Research Network where monitoring the surface water dissolved organic carbon was launched in 2004. It is important to set up long-term monitoring and research of water dissolved organic carbon in typical ecosystems in China.

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备注/Memo

收稿日期:2008-8-6。
基金项目:国家自然科学基金项目（30600091，40701186）；中国科学院知识创新工程青年人才领域前沿项目（O7V70130SZ）
作者简介:张娜（1983- ），女，河北保定人，硕士研究生，主要从事农田水循环方面研究。E-mail：zhang1028na@163.com
通讯作者:张心昱（1973- ），女，辽宁桓仁人，博士，主要从事环境地球化学方面研究。E-mail：zhangxy@igsnrr.ac.cn

更新日期/Last Update: 1900-01-01