地理研究 ›› 2011, Vol. 30 ›› Issue (8): 1412-1420.doi: 10.11821/yj2011080007

• 水文与水资源 • 上一篇    下一篇

基于生态水文学的地下水资源管理研究——以延庆盆地为例

潘云, 宫辉力, 朱琳, 李小娟, 赵文吉, 宫兆宁   

  1. 首都师范大学城市环境过程与数字模拟国家重点实验室培育基地,北京 100048;首都师范大学资源环境与地理信息系统北京市重点实验室,北京 100048;首都师范大学三维信息获取与应用教育部重点实验室,北京 100048
  • 收稿日期:2010-08-27 修回日期:2010-12-29 出版日期:2011-08-20 发布日期:2011-08-20
  • 作者简介:潘云(1980-),男,江苏溧阳人,讲师,博士,主要从事遥感与生态水文模型应用基础研究。E-mail: panyun86@hotmail.com
  • 基金资助:

    国际科技合作项目(2010DFA92400);国家自然科学基金项目(40871241);北京市自然科学基金(8082010,8101002)

Study on ecohydrology-based groundwater resources management in Yanqing Basin, Beijing

PAN Yun, GONG Hui-li, ZHU Lin, LI Xiao-juan, ZHAO Wen-ji, GONG Zhao-ning   

  1. Base of the State Laboratory of Urban Environmental Processes and Digital Modeling, Capital Normal University, Beijing 100048, China; MOE Key Lab of 3-D Information Acquisition and Application, Capital Normal University, Beijing 100048, China; Beijing Key Lab of Resources Environment and GIS, Capital Normal University, Beijing 100048, China
  • Received:2010-08-27 Revised:2010-12-29 Online:2011-08-20 Published:2011-08-20

摘要: 传统的地下水资源管理往往只关注地下水位的变化,而很少考虑变化的水位会对区域生态系统产生什么样的影响。本文在生态水文模拟的基础上提出了一种基于生态水文学的地下水资源管理新方法。该方法耦合土壤水分与地下水位,考虑植物在水分胁迫下的蒸腾抑制机理,通过土壤水分亏缺与植物水分胁迫耦合水文过程与植物响应,进行基于过程的分布式生态水文模拟。利用模拟的植物水分胁迫因子作为一个生态指标,进行地下水开采管理。本文以延庆盆地为例,通过1981~2000年模拟,分析了地下水开采对生态水文过程的影响。定量的生态水文指标的建立与应用为地下水资源管理实践提供了有益的探索,但指标的生态意义、地下水位模拟的精度以及模型的不确定性问题仍然有待深入研究。

关键词: 生态水文模拟, 土壤水分亏缺, 植物水分胁迫, 地下水

Abstract: Traditional groundwater resources management tends to focus on the fluctuation of water table itself while rarely care about the impact on the ecosystem caused by water table change. This paper developed the ecohydrology-based groundwater resources management approach through ecohydrological modeling. This approach integrates soil water content and groundwater level, taking into account the evapotranspiration under plant water stress. The process-based and distributed ecohydrological modeling is achieved via coupling soil water deficit and plant water stress. The simulated plant water stress index is used as an ecological indicator for groundwater mining management. The Yanqing Basin is taken as an example in this paper to demonstrate how this approach works. The impact of groundwater exploitation on ecohydrological processes is analyzed through the modeling for the years 1981-2000. Although it still needs further research on the ecological implications of plant water stress index, and model uncertainties and sensitivities, this study provides a quantitative ecohydrological indicator that could be used for sustainable groundwater resources management.

Key words: ecohydrological modeling, soil water deficit, plant water stress, groundwater