贵阳市区地表/地下水化学与锶同位素研究
CHARACTERIZATION OF WATER-ROCK INTERACTION AND POLLUTION OF KARSTIC HYDROLOGICAL SYSTEM: A STUDY ON WATER CHEMISTRY AND Sr ISOTOPE OF SURFACE/GROUND WATER OF THE GUIYANG AREA
查看参考文献20篇
|
文摘
|
贵阳市及邻近地区地表和地下水的化学与Sr同位素组成变化反映了典型喀斯特地区地表/地下水文系统的水-岩反应和城市污染特征:水体中的化学溶解物质主要来源于碳酸盐岩(石灰岩和白云岩)的风化作用和膏岩层的溶解,其次为人为污染物的输入;污染物以K+, Na+, Cl-, SO2-4, NO-3为主,枯水期因大气降水补给小而受人为活动影响较大;丰水期和枯水期地表/地下水的化学组成变化说明地表/地下水交换活跃,地下水环境容易受到人为活动影响. |
|
其他语种文摘
|
The chemistry and Sr isotopic composition of surface/ground waters of the Guiyang city and its adjacent areas represent a typical hydrogeochemical signature of a typical karstic hydrological system. Dissolved load of surface and ground waters are mainly dominated by Ca2* , Mg2+ , SO2," and HCO3", which are derived mainly from chemical weathering of carbonate rocks (limestone and dolomite) and dissolution of sulfate evaporates. Contribution of silicate weathering to the water system is very small. The variations of major cation compositions, such as Mg"*/ Ca2+ and Sr2 + /Ca2+ ratios, are controlled by both weathering sources and water-rock interaction. The Sr isotope compositions of the sewage samples show no significant differences with those of the surface and ground waters, and hence can not be used to trace the contaminant cycling. However, Sr isotope, when combined with chemical composition, can be a powerful tool to trace the source of contaminants. Anthropogenic inputs to the ground water system are mainly K+ , Na+ , Cl" , SO2" and NO3~, among which the Na+ , Cl", SO2." and N03~ components can be used as the indicators of the ground water pollution. These contaminants are of higher concentrations in winter-season water, as a result of a smaller volume of water and hence smaller buffering capacity the water system. The ground waters have more N03~ than the surface water, indicating that the NO3~ can be accumulated or present for a long time in the ground water system. The ground waters show co-variations in chemical composition with the surface water, and show significant differences in chemical composition in winter- and summer-season. In addition, the chemical compositions of the studied waters show a mixing of surface and ground waters. The obtained geochemical evidence demonstrates that the surface and ground water in the karstic hydrological system exchanges quickly and hence is an easily subject to impact of human activities. |
|
来源
|
第四纪研究
,2005,25(5):655-662 【核心库】
|
|
关键词
|
喀斯特
;
地表/地下水
;
污染
;
锶同位素
|
|
地址
|
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵州, 贵阳, 550002
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-7410 |
|
学科
|
地质学 |
|
基金
|
中国科学院知识创新工程项目
;
国家自然科学基金项目
|
|
文献收藏号
|
CSCD:2030431
|
参考文献 共
20
共1页
|
|
1.
Oetting G C. Regional controls on the geochemical evolution of saline groundwaters in the Edwards aquifer.
Journal of Hydrology,1996,181(1/4):251-283
|
被引
3
次
|
|
|
|
|
2.
Vaute L. Relations between the structure of storage and the transport of chemical compounds in karstic aquifers.
Journal of Hydrology,1997,199(3/4):221-238
|
被引
2
次
|
|
|
|
|
3.
Armstrong S C. Strontium isotopic evidence on the chemical evolution of pore waters in the Milk River Aquifer.
Applied Geochemistry,1998,13(4):463-475
|
被引
5
次
|
|
|
|
|
4.
Palmer M R. Controls over the strontium isotope composition of river water.
Geochimica et Cosmochimica Acta,1992,56(5):2099-2111
|
被引
43
次
|
|
|
|
|
5.
Bhlke J K. Strontium isotope geochemistry of groundwaters and streams affected by agriculture.
Applied Geochemistry,2000,15(5):599-609
|
被引
1
次
|
|
|
|
|
6.
Vilomet J D. Application of strontium isotopes for tracing landfill leachate plumes in groundwater.
Environmental Science and Technology,2001,35:4675-4679
|
被引
4
次
|
|
|
|
|
7.
Dogramaci S S. Strontium and carbon isotope constraints on carbonate-solution interactions and inter-aquifer mixing in groundwaters of the semi-arid Murray Basin.
Journal of Hydrology,2002,262(1/4):50-67
|
被引
14
次
|
|
|
|
|
8.
Han G L. A study of the river waters draining karst-dominated terrain.
Chemical Geology,2004,204(1/2):1-21
|
被引
96
次
|
|
|
|
|
9.
王增银. 锶元素地球化学在水文地质研究中的应用进展.
地质科技情报,2003,22(4):91-95
|
被引
23
次
|
|
|
|
|
10.
胡进武. 岩溶水锶元素水文地球化学特征.
中国岩溶,2004,23(1):37-42
|
被引
25
次
|
|
|
|
|
11.
韩至钧. 贵州省水文地质志.
贵州省水文地质志,1996:30-60
|
被引
1
次
|
|
|
|
|
12.
郎赟超. 喀斯特水文系统水-岩反应及污染特征.
水科学进展,2005
|
被引
1
次
|
|
|
|
|
13.
Agrawal G D. Diffuse agricultural nitrate pollution of groundwaters in India.
Water Science and Technology,1999,39(3):67-75
|
被引
11
次
|
|
|
|
|
14.
Négrel P. Changes in chemical and 87Sr/86Sr signatures distribution patterns of suspended matter and bed sediments in the upper Loire River basin (France).
Chemical Geology,1999,156(1/4):231-249
|
被引
1
次
|
|
|
|
|
15.
Négrel P. Chemical and isotopic systematics.
Journal of Hydrology,2003,277(3/4):248-267
|
被引
2
次
|
|
|
|
|
16.
Lorens R B. Sr.
Geochimica et Cosmochimica Acta,1981,45(4):553-561
|
被引
21
次
|
|
|
|
|
17.
Lyons W B. The use of strontium isotopes in determining groundwater mixing and brine fingering in a playa spring zone.
Journal of Hydrology,1995,167(1/4):225-239
|
被引
4
次
|
|
|
|
|
18.
Katz B G. The combined use of 87Sr/86Sr and carbon and water isotopes to study the hydrochemical interaction between groundwater and lakewater in mantled karst.
Geochimica et Cosmochimica Acta,1996,60(24):5075-5087
|
被引
11
次
|
|
|
|
|
19.
王增银. 延河泉岩溶水系统Sr／Mg、Sr／Ca分布特征及其应用.
水文地质工程地质,2003(2):15-19
|
被引
25
次
|
|
|
|
|
20.
Desmarais K. Inferring source waters from measurements of carbonate spring response to storms.
Journal of Hydrology,2002,260(1/4):118-134
|
被引
2
次
|
|
|
|
|
了解气象卫星更多信息，请访问