热分层效应控制的水库水体氢氧同位素特征

蒲俊兵; 李建鸿; 吴夏; 袁道先; 张陶

doi:10.14042/j.cnki.32.1309.2016.04.010

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热分层效应控制的水库水体氢氧同位素特征

蒲俊兵, 李建鸿, 吴夏, 袁道先, 张陶

文章导航 > 水科学进展 > 2016 > 27(4): 561-568

蒲俊兵, 李建鸿, 吴夏, 袁道先, 张陶. 热分层效应控制的水库水体氢氧同位素特征[J]. 水科学进展, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

引用本文:

蒲俊兵, 李建鸿, 吴夏, 袁道先, 张陶. 热分层效应控制的水库水体氢氧同位素特征[J]. 水科学进展, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

PU Junbing, LI Jianhong, WU Xia, YUAN Daoxian, ZHANG Tao. Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China[J]. Advances in Water Science, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

Citation:

PU Junbing, LI Jianhong, WU Xia, YUAN Daoxian, ZHANG Tao. Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China[J]. Advances in Water Science, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

热分层效应控制的水库水体氢氧同位素特征

doi: 10.14042/j.cnki.32.1309.2016.04.010

蒲俊兵¹,
李建鸿^1,2,
吴夏¹,
袁道先¹,
张陶^1,2

1.
中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室, 广西桂林 541004;
2.
西南大学地理科学学院, 重庆 400715

基金项目: 国家自然科学基金资助项目（41572234）；国土资源部公益性行业科研专项经费资助项目（201311148）

详细信息

作者简介:
蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

中图分类号: P641.134;P641.3

Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China

1.
Key Laboratory of Karst Dynamics, Ministry of Land and Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China;
2.
School of Geographical Sciences, Southwest University, Chongqing 400715, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.41572234).

摘要: 为掌握水库热分层与氢氧同位素空间分布的关系，研究了广西兴安县五里峡水库夏季氢氧同位素空间分布特征及影响因素。研究表明：①五里峡水库夏季出现明显的热分层，库表层至-5 m为表水层，-5 m至-20 m为温跃层，-20 m以下为底温层；②五里峡水库δ¹⁸O、δD值沿大气降水线分布，但均落在桂林市大气降水线右下方，其线性方程为δD=4.66δ¹⁸O-10.85（R²=0.76），其斜率与全球大气降雨线（GMWL）和桂林市降雨线（CLMWL）的斜率和截距差异明显，表明五里峡水库主要由降水补给，但在补给五里峡水库前已经过了强烈的蒸发作用和水岩作用；③ δ¹⁸O、δD随水深的增加逐渐偏负，具有表水层 > 入库水体 > 温跃层 > 底温层 > 出库水体（>表示偏正）的垂向分布特征。分析认为入库水体氢氧同位素的季节变化和蒸发作用随深度增加而降低是五里峡水库夏季分层期间水体氢氧同位素垂向变化的主要影响因素。
- 热分层效应 /
- 氢氧同位素 /
- 空间分布 /
- 影响因素 /
- 水库
Abstract: To examine the relationship between thermal stratification and spatial distribution of hydrogen and oxygen isotope in Wulixia Reservoir, Guangxi, spatial characteristics and factors influencing hydrogen and oxygen isotopes were studied in during the summer of 2014. Results showed that ① Wulixia Reservoir showed obvious thermal stratification in 2014 summer which can be divided into three layers, epilimnion (from surface water to a depth of 5 m), thermocline (depths of from 5 m to 20 m) and hypolimnion (below 20 m); ② All the δ¹⁸O and δD values of Wulixia Reservoir (line equation:δD=4.66δ¹⁸O-10.85, R²=0.76) scattered roughly along Global Meteorological Water Line (GMWL), which showed the reservoir water to originate from modern meteorological precipitation. However, water δ¹⁸O and δD of Wulixia Reservoir, located in the right lower area of the Guilin Local Meteorological Water Line (CLMWL) and the slope of their line equation were obviously different from the slope of GMWL and CLMWL line, which indicate that evaporation and water-rock interaction could occur before water entered the reservoir; ③ δ¹⁸O and δD values of water generally decreased as depth increased, in the following order epilimnion > inflow water > thermocline > hypolimnion outflow water (here ">" means "more positive"). Results indicate that seasonal variation of inflow water δ¹⁸O and δD and water evaporation decreased as water depth increased. These are the two primary factors influencing and controlling the vertical distribution of δ¹⁸O and δD in Wulixia Reservoir during the thermal stratification that takes place during summer.
- thermal stratification /
- hydrogen and oxygen isotopes /
- spatial distribution /
- influence factors /
- reservoir

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热分层效应控制的水库水体氢氧同位素特征

doi: 10.14042/j.cnki.32.1309.2016.04.010

1. 中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室, 广西桂林 541004;

2. 西南大学地理科学学院, 重庆 400715

基金项目: 国家自然科学基金资助项目（41572234）；国土资源部公益性行业科研专项经费资助项目（201311148）

作者简介:
蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

收稿日期: 2015-11-02
刊出日期: 2016-07-25

中图分类号: P641.134;P641.3

关键词:

摘要: 为掌握水库热分层与氢氧同位素空间分布的关系，研究了广西兴安县五里峡水库夏季氢氧同位素空间分布特征及影响因素。研究表明：①五里峡水库夏季出现明显的热分层，库表层至-5 m为表水层，-5 m至-20 m为温跃层，-20 m以下为底温层；②五里峡水库δ¹⁸O、δD值沿大气降水线分布，但均落在桂林市大气降水线右下方，其线性方程为δD=4.66δ¹⁸O-10.85（R²=0.76），其斜率与全球大气降雨线（GMWL）和桂林市降雨线（CLMWL）的斜率和截距差异明显，表明五里峡水库主要由降水补给，但在补给五里峡水库前已经过了强烈的蒸发作用和水岩作用；③ δ¹⁸O、δD随水深的增加逐渐偏负，具有表水层 > 入库水体 > 温跃层 > 底温层 > 出库水体（>表示偏正）的垂向分布特征。分析认为入库水体氢氧同位素的季节变化和蒸发作用随深度增加而降低是五里峡水库夏季分层期间水体氢氧同位素垂向变化的主要影响因素。

English Abstract

Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China

1. Key Laboratory of Karst Dynamics, Ministry of Land and Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China;

2. School of Geographical Sciences, Southwest University, Chongqing 400715, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.41572234).

Received Date: 2015-11-02
Publish Date: 2016-07-25

Keywords:

Abstract: To examine the relationship between thermal stratification and spatial distribution of hydrogen and oxygen isotope in Wulixia Reservoir, Guangxi, spatial characteristics and factors influencing hydrogen and oxygen isotopes were studied in during the summer of 2014. Results showed that ① Wulixia Reservoir showed obvious thermal stratification in 2014 summer which can be divided into three layers, epilimnion (from surface water to a depth of 5 m), thermocline (depths of from 5 m to 20 m) and hypolimnion (below 20 m); ② All the δ¹⁸O and δD values of Wulixia Reservoir (line equation:δD=4.66δ¹⁸O-10.85, R²=0.76) scattered roughly along Global Meteorological Water Line (GMWL), which showed the reservoir water to originate from modern meteorological precipitation. However, water δ¹⁸O and δD of Wulixia Reservoir, located in the right lower area of the Guilin Local Meteorological Water Line (CLMWL) and the slope of their line equation were obviously different from the slope of GMWL and CLMWL line, which indicate that evaporation and water-rock interaction could occur before water entered the reservoir; ③ δ¹⁸O and δD values of water generally decreased as depth increased, in the following order epilimnion > inflow water > thermocline > hypolimnion outflow water (here ">" means "more positive"). Results indicate that seasonal variation of inflow water δ¹⁸O and δD and water evaporation decreased as water depth increased. These are the two primary factors influencing and controlling the vertical distribution of δ¹⁸O and δD in Wulixia Reservoir during the thermal stratification that takes place during summer.

蒲俊兵, 李建鸿, 吴夏, 袁道先, 张陶. 热分层效应控制的水库水体氢氧同位素特征[J]. 水科学进展, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

引用本文:

蒲俊兵, 李建鸿, 吴夏, 袁道先, 张陶. 热分层效应控制的水库水体氢氧同位素特征[J]. 水科学进展, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

Citation:

PU Junbing, LI Jianhong, WU Xia, YUAN Daoxian, ZHANG Tao. Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China[J]. Advances in Water Science, 2016, 27(4): 561-568. doi: 10.14042/j.cnki.32.1309.2016.04.010

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热分层效应控制的水库水体氢氧同位素特征

doi: 10.14042/j.cnki.32.1309.2016.04.010

作者简介: 蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China

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出版历程

热分层效应控制的水库水体氢氧同位素特征

doi: 10.14042/j.cnki.32.1309.2016.04.010

1. 中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室, 广西 桂林 541004; 2. 西南大学地理科学学院, 重庆 400715

作者简介: 蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

English Abstract

Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir, SW China

1. Key Laboratory of Karst Dynamics, Ministry of Land and Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China; 2. School of Geographical Sciences, Southwest University, Chongqing 400715, China

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作者简介:
蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

1. 中国地质科学院岩溶地质研究所国土资源部/广西岩溶动力学重点实验室, 广西桂林 541004;

2. 西南大学地理科学学院, 重庆 400715

作者简介:
蒲俊兵(1982-),男,四川渠县人,副研究员,博士,主要从事岩溶水文地球化学、岩溶作用与碳循环等研究。E-mail:junbingpu@karst.ac.cn

1. Key Laboratory of Karst Dynamics, Ministry of Land and Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China;

2. School of Geographical Sciences, Southwest University, Chongqing 400715, China