自然资源学报 ›› 2020, Vol. 35 ›› Issue (10): 2528-2538.doi: 10.31497/zrzyxb.20201017

• 其他研究论文 • 上一篇    下一篇

青海湖沙柳河流域不同时期地表水与地下水的相互作用

雷义珍1,2, 曹生奎1,2, 曹广超1,2, 杨羽帆1,2, 兰垚1,2, 季雨桐1,2, 李华非1,2   

  1. 1.青海师范大学地理科学学院,西宁 810008;
    2.青海省自然地理与环境过程重点实验室,西宁 810008
  • 收稿日期:2019-04-20 修回日期:2019-08-22 出版日期:2020-10-28 发布日期:2020-12-28
  • 通讯作者: 曹生奎(1979- ),男,青海大通人,博士,教授,研究方向为生态水文与水资源。E-mail: caoshengkui@163.com
  • 作者简介:雷义珍(1994- ),男,重庆巫溪人,硕士,研究方向为生态水文与水资源。E-mail: Leiyizhen@163.com
  • 基金资助:
    青海省自然科学基金项目(2018-ZJ-905); 青海省“高端创新人才千人计划”(青人才字 [2016] 11号); 青海省“135高层次人才培养工程”

Study on surface water and groundwater interaction of Shaliu River Basin in Qinghai Lake in different periods

LEI Yi-zhen1,2, CAO Sheng-kui1,2, CAO Guang-chao1,2, YANG Yu-fan1,2, LAN Yao1,2, JI Yu-tong1,2, LI Hua-fei1,2   

  1. 1. College of Geographical Sciences, Qinghai Normal University, Xining 810008, China;
    2. Qinghai Provincial Key Laboratory of Physical Geography and Environmental Processes, Xining 810008, China
  • Received:2019-04-20 Revised:2019-08-22 Online:2020-10-28 Published:2020-12-28

摘要: 氢氧稳定同位素技术是研究地表水和地下水相互作用的有效手段。依据青海湖沙柳河流域2018年消融期、多雨期和冰冻期所收集的降水、河水和地下水样品中对氢氧同位素组成(δD、δ18O)的测定结果,识别和量化不同时期高山草原带和高山草甸带地表水和地下水间的补给关系和比例,其目的旨在明确高寒内陆河流域地表水和地下水δD和δ18O受降水影响的时空差异。结果表明:青海湖沙柳河流域地表水和地下水δD和δ18O值受降水响应存在时空差异性,δD和δ18O值在消融期受降水影响最强,冰冻期最弱;在高山草甸带δD和δ18O值受降水的影响强于高山草原带。消融期的高山草甸带、高山草原带和冰冻期的高山草原带地表水补给地下水的比例分别为80.65%、93.36%和89.44%;多雨期的高山草甸带、高山草原带和冰冻期的高山草甸带地下水补给地表水的比例分别为44.50%、74.85%和88.58%。研究结果可为该流域水资源优化配置和管理提供科学依据。

关键词: 青海湖, 沙柳河流域, 氢氧稳定同位素, 地表水, 地下水, 相互作用

Abstract: Hydrogen and oxygen stable isotope technology is an effective method to study the surface water-groundwater interaction. Based on the hydrogen and oxygen isotope component (δD and δ18O) of precipitation, river water and groundwater collected in the Shaliu River Basin of Qinghai Lake during ablation period, rainy period and freezing period in 2018, the paper aims to clarify the spatio-temporal differences between δD and δ18O values of surface water and groundwater under the influence of precipitation. We use the two-component method to reveal and ensure the interaction between surface water and groundwater of alpine steppe zone and alpine meadow zone in three periods. Results show that, the impact of precipitation on surface water and groundwater is different in space and time. Stable isotopic response of surface water and groundwater to precipitation on the time is the strongest in ablation period and the weakest in freezing period. And the stable isotopic response of surface water and groundwater to precipitation in alpine meadow zone is stronger than that in alpine steppe zone. In alpine meadow and alpine steppe zones of ablation period and alpine steppe zone of freezing period, surface water recharges groundwater, and the ratio is 80.65%, 93.36% and 89.44%, respectively. In alpine meadow and alpine steppe zones of ablation period and alpine meadow zone of freezing period, groundwater recharges surface water, and the ratio is 44.50%, 74.85% and 88.58%, respectively. Thus, this study provides a scientific basis for the optimization, allocation and management of water resources.

Key words: Qinghai Lake, Shaliu River Basin, stable isotopes of hydrogen and oxygen, surface water, groundwater, interaction