地理科学 ›› 2013, Vol. 33 ›› Issue (2): 174-180.doi: 10.13249/j.cnki.sgs.2013.02.174

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基于ArcGIS的下辽河平原地下水功能评价

孙才志1,2(), 李秀明2   

  1. 1.辽宁师范大学海洋经济与可持续发展研究中心,辽宁 大连 116029
    2.辽宁省自然地理与空间信息科学重点实验室,辽宁 大连 116029
  • 收稿日期:2012-07-20 修回日期:2012-11-20 出版日期:2013-02-20 发布日期:2013-02-20
  • 作者简介:

    作者简介:孙才志(1970-),男,教授,博士生导师,主要从事水资源与海洋经济研究。E-mail:suncaizhi@lnnu.edu.cn

  • 基金资助:
    国家自然科学基金(40501013)与辽宁省高等学校优秀人才支持项目(IR201021)资助

Groundwater Function Assessment Based on ArcGIS in the Lower Reach of the Liaohe River Plain

Cai-zhi SUN1,2(), Xiu-ming LI2   

  1. 1.Center for Studies of Marine Economy and Sustainable Development, Liaoning Normal University, Dalian,Liaoning 116029,China
    Liaoning Key Laboratory of Physical Geography and Geomatics, Liaoning Normal University, Dalian,Liaoning 116029,China
  • Received:2012-07-20 Revised:2012-11-20 Online:2013-02-20 Published:2013-02-20

摘要:

地下水功能评价是地下水资源评价工作的延伸和拓展。从地下水系统的供给与需求方面入手,根据研究区的具体情况及获取资料状况,构建了地下水的功能评价指标体系,并采用层次分析法和GIS空间叠加分析对下辽河平原地下水功能进行评价,结果表明:下辽河平原地下水资源功能强和较强区主要分布在苏家屯、新民-辽中平原区、辽浑河冲积扇区;生态功能强和较强区主要分布在太子河冲积扇、大小凌河冲积扇、南部滨海区及中部河谷平原部分地区;地质环境功能强和较强区主要分布于浑太河流域、大小凌河冲积扇及盘山营口一线等地,地下水综合功能强和较强区则主要位于苏家屯区、辽中及太子河冲积扇区。研究成果对于区内地下水功能的正常维持与地下水资源的科学管理具有一定的参考意义。

关键词: 下辽河平原, 地下水功能评价, 评价指标体系, Arcgis

Abstract:

Groundwater function assessment is the extension and expansion of groundwater resources evaluation. According to the concrete conditions in the study area and considering the information availability, the indicator system for groundwater function assessment was established from the points of groundwater function provision and groundwater function demand. The AHP(analytic hierarchy process) method and space superposition analysis technique of GIS were adopted to assess the groundwater function in the lower reach of the Liaohe River Plain, and function index of resources function, ecology function and geo-environmental function were obtained. The results show that the regions with the best and better resources function mainly locate in Sujiatun, Xinmin-Liaozhong plain, the Liaohe River and the Hunhe River Alluvial fan. The proportions of the study area in each resources function category are: 0.95% of strong function, 23.64% of moderately strong function, 25.62% of moderate function; 27.38% of moderately weak function, and 22.41% of weak function.The regions with the best and better ecology function mainly locate in the Alluvial fans of the Taizihe River, the big and small Linghe, the south coastal region and the center plain. The proportions of the study area in each ecology function category are: 5.62% of strong function, 17.95% of moderately strong function, 24.73% of moderate function, 23.52% of moderately weak function, and 28.18% of weak function.The regions with the best and better geo-environmental function mainly locate in the Hunhe river and the Taizihe river, the alluvial fans of the big Linghe and the small Linghe, and the line from Panshan to Yingkou. The proportions of the study area in each geo-environmental function category are: 4.93% of strong function, 19.42% of moderately strong function, 24.15% of moderate function, 27.02% of moderately weak function, and 24.48% of weak function.The regions with the strongest and strong comprehensive function mainly locate in the Sujiatun, Liaozhong and Taizihe alluvial fan. The proportions of the study area in each function category are: 2.62% of strong function, 21.54% of moderately strong function, 22.87% of moderate function, 25.49% of moderately weak function and 27.48% of weak function.A comparison analysis between the groundwater function map and the public information about groundwater assessment, environment hydrogeological problems, groundwater vulnerability and groundwater utilization in study area provided by the Department of Land and Resources of Liaoning Province was carried out, which shows that the assessment results of groundwater is well fitted with the actual situation. This indicates that the assessment results are valid, and the indictor system constructed in this paper can be successfully applied to assess groundwater function.The research results have the certain reference significance for the maintenance of groundwater function and the scientific management of groundwater resources in the lower reach Liaohe River Plain.

Key words: the lower reach of the Liaohe River Plain, groundwater function assessment, assessment indicator system, ArcGIS

中图分类号: 

  • P641.8