Effects of tourism activities on hydrochemical fingerprints in the karst underground river system
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摘要:
地下河系统是岩溶地质景观的重要组成部分,利用特殊岩溶地形地貌建立的国家重大科技基础设施成为科研和旅游的胜地。为了解旅游活动对岩溶地下河系统水化学的影响,文章分析了大小井地下河系统入口和出口在不同旅游时段的水化学特征。结果表明:受旅游人数影响,污水水化学变化较大;大小井水化学类型为Ca-HCO3型,水岩相互作用产生的Ca2+、Mg2+和
从入口到出口逐渐增加,而人类活动输入的K+、Na+、Cl−、${\rm{HCO}}_3^{-}$ 和${\rm{NO}}_3^{-}$ 则表现出差异性特征。小井地下河系统因受沿途城镇生活排放污水和农业活动影响,水化学波动较大,出口K+、Na+、Cl−和${\rm{SO}}_4^{2-}$ 升高;大井地下河虽受旅游活动输入影响,但K+、Na+、Cl−、${\rm{NO}}_3^{-}$ 和${\rm{NO}}_3^{-}$ 随着地下径流长度增加而降低。HFE−D和Gibbs模型以及离子比例系数分析显示,地下河系统受到了城镇生活排放、旅游和农业等人类活动输入的影响,这一现象应引起足够的重视。${\rm{SO}}_4^{2-}$ Abstract:The underground river system is the main carrier of water resources and an important source of urban and rural water supply in karst areas, and is also an essential element of karst geological wonders. Nowadays, people are showing the increasing preference for the cultural tourism integrated with science and technology. Meanwhile, the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), a significant national science and technology infrastructure built at the special topography of karst, has become an aspiring destination for astronomy and tourism enthusiasts. However, pollutants from tourism activities will easily affect the water quality of underground river through the surface runoff via sinkholes, shafts and cracks. Using hydrochemical facies diagram (HFE-D), Gibbs models and coefficients of ion ratio, we have analyzed the characteristics and changes in water chemistry of wastewater from the tourist attraction and from the Dajing and Xiaojing underground river systems during different tourism periods in order to understand the periodic, concentrated and sudden effects of tourism activities on the water chemistry of underground river systems. The results show that: (1) The pH and conductivity values of the sewage from the tourist attraction varied little during the May Day holiday, ranging from 7.57 to 7.84 and 540.00 to 761.00 mS·cm−1, respectively. The sewage pH values during the National Day holiday ranged from 7.66 to 7.95 with an average value of 7.78; however, the conductivity varied greatly from 488.00 to 934.50 mS·cm−1. The water chemistry type of sewage is Ca−HCO3, and the values of K+, Na+, Cl− and
subject to tourism activities fluctuated greatly. Their maximum values appeared on May 2 to May 3 and October 2 to October 4, which is consistent with the increasing number of tourists in the peak period of tourism. Compared with Dajing and Xiaojing underground river systems, increases of Na+, K+ and Cl− in the Durov diagram are responsible for domestic discharge and input from disinfection of Cl2 or NaClO in water treatment plants. (2) During the May Day holiday, the pH values of water from the inlet and outlet of the Dajing and Xiaojing underground river systems varied from 7.72 to 8.42 and 7.36 to 8.39, respectively. The water conductivity in the inlet ranged from 256.00 to 338.00 mS·cm−1 with an average of 281.79 mS·cm−1. The water conductivity in the outlet increased slightly, changing from 297.00 to 413.00 mS·cm−1 with an average of 313.59 mS·cm−1. Compared with the May Day holiday, the pH values of water from inlet to outlet of the Dajing underground river system increased slightly from 8.03 to 8.27 during the National Day holiday, while its conductivity values decreased slightly due to the dilution of rainfall, averaging between 317.51 mS·cm−1 and 265.11 mS·cm−1. Differently, the Xiaojing underground river system showed an increase in pH and conductivity vaules during both May Day holiday and National Day holiday, with the average of pH increasing from 7.66 to 8.02 and from 8.03 to 8.17, respectively. Average values of conductivity increased from 295.67 mS·cm−1 to 342.97 mS·cm−1 during the May Day holiday and from 307.63 mS·cm−1 to 359.72 mS·cm−1 during the National Day holiday, both of which were influenced by the urban or rural domestic discharges and the input from agricultural activities. (3) The water chemistry type of Dajing and Xiaojing underground river systems is Ca−HCO3, which is mainly controlled by karstification. The TDS increased from the inlet to the outlet as a result of sufficient water-rock interaction and effects of human activities. There are some differences in spatial variation of water chemistry between Dajing and Xiaojing underground river systems. Ca2+, Mg2+ and${\rm{NO}}_3^{-}$ produced by water-rock interaction in the Dajing underground river system gradually increased from inlet to outlet, while K+, Na+, Cl−,${\rm{HCO}}_3^{-}$ and${\rm{NO}}_3^{-}$ caused by human activities declined along groundwater. K+, Na+, Cl− and${\rm{SO}}_4^{2-}$ in Xiaojing underground river system increased from inlet to outlet. The value of${\rm{NO}}_3^{-}$ fluctuated the most with a variation coefficient of 747.97. More fluctuations in water chemistry showed in Xiaojing underground river system due to the effect of urban or rural domestic discharges and input from agricultural activities. (4) Influenced by tourism activities, the HFE-D showed that continuous 5-day responses happened after the 24-days effect of tourism activities on the water chemistry in outlet of the Dajing underground river system. The response time lengthened 2 days compared with 3-day peak tourism in the May Day holiday. But the response duration prolonged more than 13 days during the National Day holiday. It can be contributed to a concentrated and explosive effect of tourism activities and needs an extended recovery time for the water chemistry values of the underground river system. The water chemistry at the inlet of Xiaojing underground river system had been affected before the peak of tourism no matter whether in the May Day holiday or National Day holiday, indicating that the water chemistry of the underground river is influenced not only by the sewage from tourist attraction, but also by the urban or rural domestics discharge and input from agricultural activities. The HFE-D indicates a 2-day response in water chemistry at the outlet of the Xiaojing underground river system 27 days after the May Day holiday. The poor continuity and regularity of the water chemistry response observed at the outlet of the Xiaojing underground river system during the National Day holiday may be related to multiple effects along the underground river. Both Gibbs model and analysis of ion ratio showed that the underground river system was influenced by the input of human activities such as urban domestic discharge, tourism and agriculture activities. Therefore, the human effect on water chemistry of the underground river system should be given adequate attention.${\rm{NO}}_3^{-}$ -
Key words:
- karst underground river system /
- groundwater /
- hydrochemical fingerprints /
- tourism activities /
- Guizhou
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表 1 旅游期间大小井地下河系统水化学特征统计
Table 1. Hydrochemical characteristics of Dajing and Xiaojing underground river systems during the tourism period
Temp DO pH EC Na+ K+ Mg2+ Ca2+ Cl− 五一 景区污水(n=8) Min 19.70 2.26 7.57 540.00 15.90 7.92 5.35 57.79 16.80 23.22 0.16 199.12 Max 21.30 3.84 7.84 761.00 29.01 12.20 6.00 64.46 40.64 29.56 0.87 267.90 Avg 20.58 2.90 7.68 663.50 21.96 10.40 5.60 60.58 29.80 27.19 0.43 231.25 Std 0.56 0.63 0.10 82.39 4.99 1.60 0.24 2.22 9.07 2.24 0.28 28.93 CV 2.71 21.60 1.29 12.42 22.72 15.36 4.35 3.67 30.43 8.23 66.01 12.51 大井地下河入口(72) Min 18.20 7.61 7.72 256.00 0.89 0.99 3.33 43.63 13.14 1.49 2.79 97.75 Max 22.10 9.23 8.42 338.00 1.17 1.47 3.87 50.53 14.42 1.84 4.72 119.47 Avg 19.75 8.28 8.17 281.79 1.02 1.13 3.58 48.14 13.74 1.68 3.36 110.92 Std 0.95 0.30 0.13 19.14 0.06 0.08 0.15 1.48 0.32 0.09 0.25 4.76 CV 4.83 3.66 1.59 6.79 6.07 6.98 4.15 3.07 5.41 2.30 7.55 4.29 大井地下河出口(90) Min 19.90 7.74 7.36 297.00 0.87 0.93 4.98 49.71 12.34 1.84 3.46 132.71 Max 23.30 8.43 8.39 413.00 1.60 2.50 9.31 54.32 18.27 3.49 6.24 157.29 Avg 20.34 8.04 7.93 313.59 1.06 1.16 6.72 51.24 13.86 2.11 4.90 145.44 Std 0.47 0.14 0.20 17.01 0.15 0.32 1.88 0.92 0.95 0.32 0.64 6.38 CV 2.31 1.70 2.57 5.43 14.12 27.33 28.00 1.80 14.94 6.86 13.06 4.38 小井地下河入口(15) Min 19.10 6.88 7.48 288.00 1.08 0.70 3.88 52.41 10.79 1.59 2.38 123.09 Max 21.20 10.12 7.89 313.00 1.13 0.79 4.19 55.21 11.51 1.81 3.73 159.29 Avg 20.13 8.48 7.66 295.67 1.10 0.76 4.06 53.57 11.08 1.71 3.45 135.40 Std 0.69 0.94 0.12 6.22 0.02 0.02 0.10 0.86 0.20 0.06 0.35 10.04 CV 3.41 11.08 1.62 2.10 1.43 3.23 2.55 1.61 3.36 1.80 10.05 7.41 小井地下河出口(32) Min 19.70 8.34 7.75 331.00 0.89 0.82 5.53 55.19 7.11 1.14 4.84 147.46 Max 21.40 9.04 8.28 390.00 2.14 1.10 10.31 63.45 12.73 2.85 8.99 172.04 Avg 20.21 8.70 8.02 342.97 1.10 0.92 7.08 59.12 10.94 2.14 6.87 158.06 Std 0.38 0.18 0.13 11.28 0.22 0.08 1.69 2.05 1.08 0.28 0.92 4.69 CV 1.89 2.08 1.63 3.29 19.74 8.95 23.88 3.46 13.05 9.83 13.38 2.97 十一 景区污水(55) Min 20.00 1.78 7.66 488.00 16.14 7.50 4.09 49.43 11.56 0.27 0.04 93.84 Max 26.70 7.03 7.95 934.00 38.97 16.68 5.46 67.86 52.95 49.00 94.83 206.46 Avg 23.49 3.45 7.78 666.44 24.62 10.74 5.07 58.26 31.35 16.15 18.62 150.01 Std 1.51 1.22 0.06 110.85 6.04 2.32 0.29 3.53 9.33 12.48 33.02 23.29 CV 6.43 35.44 0.73 16.63 24.54 21.56 5.63 6.05 29.74 77.27 205.35 15.52 大井地下河入口(99) Min 19.20 5.55 7.74 229.00 0.96 0.90 3.22 37.59 4.02 1.07 0.04 97.60 Max 27.40 11.84 8.68 342.00 3.96 12.44 4.02 53.35 25.80 9.71 8.14 157.66 Avg 23.14 8.63 8.27 265.11 1.54 1.53 3.74 44.08 13.69 2.49 1.47 132.25 Std 1.75 1.20 0.19 21.73 0.54 1.32 0.10 3.59 2.68 1.15 1.51 11.64 CV 7.57 13.93 2.28 8.20 34.76 86.06 2.55 8.14 46.38 19.55 102.92 8.80 十一 大井地下河出口(117) Min 17.70 8.22 7.82 295.00 0.07 0.07 0.40 50.65 6.04 1.04 0.04 97.60 Max 20.40 8.79 8.19 389.00 2.36 1.88 5.26 67.05 15.92 2.00 15.07 127.63 Avg 18.95 8.44 8.03 317.51 1.00 1.00 4.34 55.84 11.64 1.57 2.13 114.67 Std 0.44 0.11 0.05 15.51 0.24 0.14 0.40 1.47 1.32 0.17 1.81 5.72 CV 2.30 1.34 0.58 4.89 23.89 14.15 9.17 2.64 10.85 11.33 85.02 4.99 小井地下河入口(16) Min 19.40 7.98 7.80 300.00 0.80 0.77 3.29 56.24 9.06 0.71 1.62 150.15 Max 22.50 9.52 8.30 329.00 1.05 2.03 3.48 59.56 14.27 4.92 4.91 167.67 Avg 21.14 8.73 8.03 307.63 0.88 1.06 3.38 57.72 9.50 2.24 3.95 154.53 Std 0.92 0.50 0.17 7.09 0.07 0.35 0.04 0.90 1.27 0.97 0.70 5.37 CV 4.34 5.73 2.17 2.30 7.99 32.90 1.22 1.56 43.13 13.39 17.86 3.47 小井地下河出口(32) Min 18.60 8.54 8.02 346.00 0.59 0.39 0.65 2.46 7.78 1.89 0.04 105.11 Max 20.00 8.96 8.37 397.00 1.39 1.18 5.48 66.84 13.96 2.40 6.93 150.15 Avg 19.27 8.77 8.17 359.72 1.17 0.91 5.10 63.22 8.69 2.04 1.70 125.52 Std 0.13 0.09 12.97 12.68 0.13 0.82 11.13 12.14 0.12 2.21 12.68 18.96 CV 0.69 1.00 158.70 3.53 11.44 90.18 218.22 19.21 108.15 1.43 747.97 15.10 注:Min-最小值,Max-最大值,Avg-均值,Std-标准偏差,CV-变异系数 -
[1] 袁道先. 论岩溶环境系统[J]. 中国岩溶, 1988, 7(3):179-186.
YUAN Daoxian. On the karst environmental system[J]. Carsologica Sinica, 1988, 7(3):179-186.
[2] Zoran S, Maran S A. Monitoring as the key factor for sustainable use and protection of groundwater in karst environments: An overview[J]. Sustainability, 2021, 13(10):5468. doi: 10.3390/su13105468
[3] Brenot A, Baran N, Petelet Giraud E, Negrel P. Interaction between different water bodies in a small catchment in the Paris basin (Brevilles, France): Tracing of multiple Sr sources through Sr isotopes coupled with Mg/Sr and Ca/Sr ratios[J]. Applied Geochemistry, 2008, 23(1):58-75. doi: 10.1016/j.apgeochem.2007.09.006
[4] Jing Chen, Mingming Luo, Rui Ma, Hong Zhou, Shengzhang Zou, Yiqun Gan. Nitrate distribution under the influence of seasonal hydrodynamic changes and human activities in Huixian karst wetland, South China[J]. Journal of Contaminant Hydrology, 2020, 234:103700. doi: 10.1016/j.jconhyd.2020.103700
[5] 蒋忠诚, 袁道先. 表层岩溶带的岩溶动力学特征及其环境和资源意义[J]. 地球学报, 1999(3):302-308.
JIANG Zhongcheng, YUAN Daoxian. Dynamics features of the epikarst zone and their significance in environments and resources[J]. Acta Geoscientia Sinica, 1999(3):302-308.
[6] 郭芳, 姜光辉, 夏青, 李科. 土地利用影响下的岩溶地下水水化学变化特征[J]. 中国岩溶, 2007(3):212-218.
GUO Fang, JIANG Guanghui, XIA Qing, LI Ke. Hydro-chemical variation of karst groundwater under the impact of land use in Donghe catchment, Hunan[J]. Carsologica Sinica, 2007(3):212-218.
[7] 蒋勇军, 袁道先. 城市发展对岩溶地下水质影响的地球化学示踪: 以重庆南山老龙洞地下河系统为例[J]. 第四纪研究, 2014, 34(5): 1044-53.
JIANG Yongjun, YUAN Daoxian. Geochemical tracers to characterize effects of urbanization on karst groundwater quality from Nanshan underground river system, SW China[J]. Quaternary Sciences, 2014, 34(5): 1044-1053.
[8] 李学先, 吴攀, 查学芳, 何守阳, 吴琳娜, 韩志伟. 基于水化学及稳定同位素的岩溶山区城镇水体硝酸盐来源示踪[J]. 环境科学学报, 2021, 41(4): 1428-1439
Li Xuexian, WU Pan, ZHA Xuefang, HE Shouyang, WU Linna, HAN Zhiwei. Tracing nitrate sources in urban waters of karst mountainous area using hydrochemistry and stable isotope[J]. Acta Scientiae Circumstantiae, 41(4): 1428-1439
[9] M. A. Martín del Campo, M. V. Esteller, J. L. Expósito, R. Hirata. Impacts of urbanization on groundwater hydrodynamics and hydrochemistry of the Toluca Valley aquifer (Mexico)[J]. Environmental Monitoring and Assessment, 2014, 186(5):2979-2999. doi: 10.1007/s10661-013-3595-3
[10] Chen Ming, Qin Xiaosheng, Zeng Guangming, Li Jian. Impacts of human activity modes and climate on heavy metal "spread" in groundwater are biased[J]. Chemosphere, 2016, 152:439-445. doi: 10.1016/j.chemosphere.2016.03.046
[11] 卢丽, 王喆, 裴建国. 西南典型地下河表层沉积物多环芳烃污染特征[J]. 环境科学与技术, 2019, 42(10):51-6. doi: 10.19672/j.cnki.1003-6504.2019.10.008
LU Li, WANG Zhe, PEI Jianguo. Pollution characteristics of polycyclic aromatic hydrocarbons in surface sediments from typical underground river in Southwest China[J]. Environmental Science & Technology, 2019, 42(10):51-6. doi: 10.19672/j.cnki.1003-6504.2019.10.008
[12] 董蓉, 王亚, 周永章. 城市化对地下水重金属/类金属的影响: 以深圳市福田区为例[J]. 矿物岩石地球化学通报, 2019, 38(5):945-52.
DONG Rong, WANG Ya, ZHOU Yongzhang. Impacts of urbanization on heavy metal/metalloid concentrations in groundwater: A case study in Futian district, Shenzhen City[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2019, 38(5):945-52.
[13] Zhao B, Huang F, Zhang C, Huang G, Xue Q, Liu F. Pollution characteristics of aromatic hydrocarbons in the groundwater of China[J]. Journal of Contaminant Hydrology, 2020, 233:103676. doi: 10.1016/j.jconhyd.2020.103676
[14] 袁道先, 薛禹群, 傅家谟, 郑度, 汪集旸, 林学钰, 陈梦熊. 我西南岩溶地区地下河面临变成“下水道”威胁加强保护和污染治理需从国家层面尽快做出决策[J]. 科学新闻, 2007(14):7-9.
YUAN Daoxian, XUE Yuqun, FU Jiamo, ZHENG Du, WANG Jiyang, LIN Xueyu, CHEN Mengxiong. Underground rivers in karst areas in Southwest China are facing the threat of becoming "sewers". To strengthen protection and pollution control, we need to make decisions at the national level as soon as possible[J]. Science News, 2007(14):7-9.
[15] 汪超, 尹娟, 邱小琮. 旅游活动对沙湖水环境质量影响评价[J]. 宁夏工程技术, 2016, 15(1):82-87. doi: 10.3969/j.issn.1671-7244.2016.01.019
WANG Chao, YIN Juan, QIU Xiaocong. Effect of tourism activities on Sand Lake water quality[J]. Ningxia Engineering Technology, 2016, 15(1):82-87. doi: 10.3969/j.issn.1671-7244.2016.01.019
[16] 于正良, 袁道先, 杨平恒, 李林立, 谢世友. 基于PCA和在线监测技术研究旅游活动对岩溶地下水水化学的影响[J]. 地球学报, 2016, 37(2):232-240. doi: 10.3975/cagsb.2016.02.11
YU Zhengliang, YUAN Daoxian, YANG Pingheng, LI Linli, XIE Shiyou. Influences of tourism activities on hydrochemistry of karst groundwater revealed by principal component analysis and on-line monitoring technique[J]. Acta Geoscientica Sinica, 2016, 37(2):232-240. doi: 10.3975/cagsb.2016.02.11
[17] 杨平恒, 詹兆君, 明晓星, 陈峰, 任娟, 邓书金, 洪爱花. 旅游酒店排污影响下的岩溶地下水水化学变化[J]. 湖泊科学, 2019, 31(2):416-28. doi: 10.18307/2019.0211
YANG Pingheng, ZHAN Zhaojun, MING Xiaoxing, CHEN Feng, REN Juan, DENG Shujin, HONG Aihua. Hydrochemical variation of the karst groundwater impacted by the contaminant discharge from a tourism hotel[J]. Journal of Lake Sciences, 2019, 31(2):416-28. doi: 10.18307/2019.0211
[18] Casas-Beltrán D A, Febles-Moreno K, Hernandez-Yac E, Courtney Maloof Gallaher, Alvarado-Flores J, Leal-Bautista R M, Melissa Lenczewski. Impact of tourist behavior on the discharge of sunscreen contamination in aquatic parks, sinkholes, and beaches of the Mexican Caribbean[J]. Applied Sciences-Basel, 2021, 11(15):6882. doi: 10.3390/app11156882
[19] Dussart-Baptista L, Massei N, Dupont J-P, Jouenne T. Transfer of bacteria-contaminated particles in a karst aquifer: Evolution of contaminated materials from a sinkhole to a spring[J]. Journal of Hydrology, 2003, 284: 285–295.
[20] Mattos J B, Cruz M J M, De Paula F C F, Sales E F. Natural and anthropic processes controlling groundwater hydrogeochemistry in a tourist destination in Northeastern Brazil[J]. Environmental Monitoring and Assessment, 2018, 190(7):1-17.
[21] Silva K B, Mattos J B. A spatial approach for the management of groundwater quality in tourist destinations[J]. Tourism Management, 2020, 79(10):4079.
[22] Khan M Y A, Elkashouty M, Bob M. Impact of rapid urbanization and tourism on the groundwater quality in Al Madinah City, Saudi Arabia: A monitoring and modeling approach[J]. Arabian Journal of Geosciences, 2020, 13(18): 922
[23] Bahir M, Ouazar D, Ouhamdouch S, Zouari K. Assessment of groundwater mineralization of alluvial coastal aquifer of essaouira basin (Morocco) using the hydrochemical facies evolution diagram (HFE-Diagram)[J]. Groundwater for Sustainable Development, 2020, 11:100487. doi: 10.1016/j.gsd.2020.100487
[24] Abotalib A Z, Sultan M, Elkadiri R. Groundwater processes in Saharan Africa: Implications for landscape evolution in arid environments[J]. Earth-Science Reviews, 2016, 156:108-136. doi: 10.1016/j.earscirev.2016.03.004
[25] Zeng J, Yue F J, Li S L, Wang Z J, WU Q, Qin CQ, Yan Z L. Determining rainwater chemistry to reveal alkaline rain trend in Southwest China: Evidence from a frequent-rainy karst area with extensive agricultural production[J]. Environmental Pollution, 2020, 266:115166. doi: 10.1016/j.envpol.2020.115166
[26] Yang P, Ming X, Groves C, Sheng T. Impact of hotel septic effluent on the Jinfoshan karst aquifer, SW China[J]. Hydrogeology Journal, 2019, 27(1):321-334. doi: 10.1007/s10040-018-1890-3
[27] 吕现福, 贺秋芳, 王凤康, 赵瑞一, 张弘. 旅游活动对岩溶洞穴地下水中细菌群落的影响: 以重庆丰都两个洞穴为例[J]. 环境科学, 2018, 39(5):2389-2399.
LV Xianfu, HE Qiufang, WANG Fengkang, ZHAO Ruiyi, ZHANG Hong. Impact of tourism on bacterial communities of karst underground river: A case study from two caves in Fengdu, Chongqing[J]. Environmental Science, 2018, 39(5):2389-2399.
[28] Chang L, Ming X, Groves C, Ham B, Wei C, Yang P. Nitrate fate and decadal shift impacted by land use change in a rural karst basin as revealed by dual nitrate isotopes[J]. Environmental Pollution, 2022, 299:118822.
[29] 郭芳, 王文科, 姜光辉, 马振杰. 岩溶地下河污染物运移特征及自净能力: 以广西里湖地下河为例[J]. 水科学进展, 2014, 25(3):414-419.
GUO Fang, WANG Wenke, JIANG Guanghui, MA Zhenjie. Contaminant transport behavior in a karst subterranean river and its capacity of self-purification: A case study of Lihu, Guangxi[J]. Advances in Water Science, 2014, 25(3):414-419.
[30] 卢丽, 王喆, 裴建国. 岩溶地下河系统多介质中多环芳烃污染特征及来源解析[J]. 环境科学, 2015, (3): 862-8.
LU Li, WANG Zhe, PEI Jianguo. Contamination characteristics and source analysis of polycyclic aromatic hydrocarbons in multimedium in karst underground river[J]. Environmental Science, 2015 (3): 862-868.
[31] Yang P, Li Y, Groves C, Hong A. Coupled hydrogeochemical evaluation of a vulnerable karst aquifer impacted by septic effluent in a protected natural area[J]. Science of the Total Environment, 2019, 658:1475-1484. doi: 10.1016/j.scitotenv.2018.12.172
[32] 李营刚, 蒋勇军, 张典. 旅游活动对岩溶地下水水质动态变化的影响: 以重庆金佛山水房泉为例[J]. 环境污染与防治, 2010, 32(12):14-7+53. doi: 10.3969/j.issn.1001-3865.2010.12.004
LI Yinggang, JIANG Yongjun, ZHANG Dian. Study on the effect of tourism activities on dynamic variation of karst groundwater quality: A case study of Shuifang Spring, Jinfo Mountain, Chongqing[J]. Environmental Pollution & Control, 2010, 32(12):14-7+53. doi: 10.3969/j.issn.1001-3865.2010.12.004
[33] Ming X, Groves C, Wu X, Chang L, Zheng Y, Yang P. Nitrate migration and transformations in groundwater quantified by dual nitrate isotopes and hydrochemistry in a karst World Heritage site[J]. Science of the Total Environment, 2020, 735:138907. doi: 10.1016/j.scitotenv.2020.138907
[34] 任娟, 杨平恒, 王建力, 于正良, 张宇, 詹兆君, 陈峰, 张海月, 刘黛薇. 旅游活动影响下的岩溶地下水理化特征演化及其概念模型: 以世界自然遗产地金佛山水房泉为例[J]. 长江流域资源与环境, 2018, 27(1):97-106.
REN Juan, YANG Pingheng, WANG Jianli, YU Zhengliang, ZHANG Yu, ZHAN Zhaojun, CHEN Feng, ZHANG Haiyue, LIU Daiwei. Influences of tourism activities on evolution of physicochemical parameters in karst groundwater and its conceptual model: A case stuady of Jinfoshan Shuifang Spring in the World Natural Heritage Site[J]. Resources and Environment in the Yangtze Basin, 2018, 27(1):97-106.
[35] 洪运胜. 贵州省大小井地下河系统之间关系分析[J]. 四川地质学报, 2013, 33(2): 221-224. HONG Yunsheng. On the relation between the two underground rivers in the Daxiaojing region, Guizhou[J]. Acta Geologica Sichuan, 2013, 33(2):221-224.
[36] 蒲俊兵, 袁道先, 扈志勇, 杨平恒, 苟鹏飞, 贺秋芳, 汪智军. 高分辨率监测岩溶地下水NO3−的动态变化及对外界环境的响应[J]. 环境科学, 2011, 32(3): 680-6.
PU Junbing, YUAN Daoxian, HU Zhiyong, YANG Pingheng, GOU Pengfei, HE Qiufang, WANG Zhijun. High-resolution research on the NO3− changes of karst groundwater and its responses to the outside environmental variations[J]. Environmental Science, 2011, 32(3): 680-686.
[37] 孔晓乐, 杨永辉, 曹博, 王艺璇, 裴宏伟, 沈彦军. 永定河上游地表水-地下水水化学特征及其成因分析[J]. 环境科学, 2021, 42(9):4202-4210. doi: 10.13227/j.hjkx.202012227
KONG Xiaole, YANG Yonghui, CAO Bo, WANG Yixuan, PEI Hongwei, SHEN Yanjun. Hydrochemical characteristics and factors of surface water and groundwater in the upper Yongding river basin[J]. Environmental Science, 2021, 42(9):4202-4210. doi: 10.13227/j.hjkx.202012227
[38] 唐春雷, 郑秀清, 梁永平. 龙子祠泉域岩溶地下水水化学特征及成因[J]. 环境科学, 2020, 41(5):2087-2095. doi: 10.13227/j.hjkx.201910078
TANG Chunlei, ZHENG Xiuqing, LIANG Yongping. Hydrochemical characteristics and formation causes of ground karst water systems in the Longzici Spring catchment[J]. Environmental Science, 2020, 41(5):2087-2095. doi: 10.13227/j.hjkx.201910078
[39] 张小文, 何江涛, 彭聪, 张昌延, 倪泽华. 地下水主要组分水化学异常识别方法对比: 以柳江盆地为例[J]. 环境科学, 2017, 38(8):3225-3234.
ZHANG Xiaowen, HE Jiangtao, PENG Cong, ZHANG Changyan, NI Zehua. Comparison of identification methods of main component hydrochemical anomalies in groundwater: A case study of Liujiang basin[J]. Environmental Science, 2017, 38(8):3225-3234.
[40] Ghernaout D, Elboughdiri N. Urgent proposals for disinfecting hospital wastewaters during COVID-19 pandemic[J]. Open Access Library Journal, 2020, 7(5):1-18.
[41] Giménez Forcada E. Dynamic of sea water interface using hydrochemical facies evolution diagram[J]. Groundwater, 2010, 48(2):212-216. doi: 10.1111/j.1745-6584.2009.00649.x
[42] Giménez Forcada E. Use of the Hydrochemical Facies Diagram (HFE-D) for the evaluation of salinization by seawater intrusion in the coastal Oropesa Plain: Comparative analysis with the coastal Vinaroz Plain, Spain[J]. HydroResearch, 2019, 2:76-84. doi: 10.1016/j.hydres.2019.11.007
[43] Giménez Forcada E, Sánchez San Román F J. An excel macro to plot the HFE‐Diagram to identify sea water intrusion phases[J]. Groundwater, 2015, 53(5):819-824. doi: 10.1111/gwat.12280
[44] Moran Ramírez J, Ramos Leal J A, Mahlknecht J, Santacruz DeLeón G, Martín Romero F, Fuentes Rivas, Mora A. Modeling of groundwater processes in a karstic aquifer of Sierra Madre Oriental, Mexico[J]. Applied Geochemistry, 2018, 95:97-109. doi: 10.1016/j.apgeochem.2018.05.011
[45] Gibbs R J. Mechanisms controlling world water chemistry[J]. Science, 1970, 170(3962):1088-1090. doi: 10.1126/science.170.3962.1088
[46] 崔玉环, 王杰, 刘友存, 郝泷, 高祥. 升金湖河湖交汇区地表-地下水水化学特征及成因分析[J]. 环境科学, 2021, 42(7):3223-3231.
CUI Yuhuan, WANG Jie, LIU Youcun, HAO Shuang, GAO Xiang. Hydro-chemical characteristics and ion origin analysis of surface groundwater at the Shengjin lake and Yangtze River Interface[J]. Environmental Science, 2021, 42(7):3223-3231.
[47] Yin S, Xiao Y, Han P, Hao Q, Gu X, Men B, Huang L. Investigation of groundwater contamination and health implications in a typical semiarid basin of North China[J]. Water, 2020, 12(4): 1137.
[48] Wu Q, Han G. Sulfur isotope and chemical composition of the rainwater at the Three Gorges Reservoir[J]. Atmospheric Research, 2015, 155:130-140. doi: 10.1016/j.atmosres.2014.11.020
[49] 樊连杰, 裴建国, 邹胜章, 杜毓超, 卢丽. 重庆市南川区南部岩溶地下水水文地球化学特征[J]. 中国岩溶, 2017, 36(5):697-703.
FAN Lianjie, PEI Jianguo, ZOU Shengzhang, DU Yuchao, LU Li. Hydrogeochemical characteristics of karst groundwater in southern Nanchuan district, Chongqing[J]. Carsologica Sinica, 2017, 36(5):697-703.
[50] Long D T, Voice T C, Niagolova N D, McElmurry S P. Effects of human activities on karst groundwater geochemistry in a rural area in the Balkans[J]. Applied Geochemistry, 2012, 27(10):1920-1931. doi: 10.1016/j.apgeochem.2012.07.003
[51] 覃彤, 汤庆佳, 张强, 杨平恒. 桂西大型岩溶地下河系统离子来源及碳稳定同位素信息: 以坡心地下河流域为例[J]. 中国地质, 2019, 46(2):302-315.
QIN Tong, TANG Qingjia, ZHANG Qiang, YANG Pingheng. Chemical ions source analysis and stable isotope implications of different water bodies in large karst underground river system: A case study of Poxin groundwater basin in Guangxi[J]. Geology in China, 2019, 46(2):302-315.
[52] Wang LH, Dong YH, Xu ZF, Qiao XJ. Hydrochemical and isotopic characteristics of groundwater in the northeastern Tennger Desert, Northern China[J]. Hydrogeology Journal, 2017, 25(8):2363-2375. doi: 10.1007/s10040-017-1620-2
[53] Stallard R F, Edmond J M. Geochemistry of the Amazon: 1. Precipitation chemistry and the marine contribution to the dissolved load at the time of peak discharge[J]. Journal of Geophysical Research: Oceans, 1981, 86(C10):9844-9858. doi: 10.1029/JC086iC10p09844