基于GIS的楚雄地区地下水特征分析
|
摘要
楚雄州属滇中干旱地区,水资源时空分布极不均匀,资源性缺水与工程性缺水并存,较难集中化利用红层井开采地下水。为了能够让有限的地下水资源最大限度发挥社会效益和经济效益,通过对该区域不同类型红层地下水进行代表性取样分析,并采用ArcGIS软件建立红层地下水化学空间模型,以分析楚雄地区红层地下水的化学特征及其空间分布规律。通过分析揭示:该区域的水化学类型主要为HCO_3-Ca、HCO_3·SO_4-Ca型水;在地下水循环系统中,总体上呈现出由高山补给区到平原排泄区,地下水力坡度由大变小,径流速度逐渐变慢,集中补给,分散排泄,径流交替沿途由强变弱的规律。
Chuxiong belongs to the arid area in Central Yunnan Province. The water resources are unevenly distributed in space and time, and the resources of water shortage and engineering water shortage coexist. In order to make the maximum groundwater resources exert social and economic benefits of the area, through the analysis of the representative sampling from different types of groundwater in red beds, Arc GIS software is used to establish the red layer chemical space groundwater model, to analyze the chemical characteristics and spatial red layer groundwater distribution in Chuxiong area. The results show that: the hydrochemical types of this area are mainly HCO_3-Ca, HCO_3-SO_4-Ca in water; groundwater system circulates from mountain plain recharge area to drainage area, underground hydraulic gradient changes from big to small, and the runoff gradually slowed down with centralized supply and scattered excretion, along the way from strong to weak run off law.
Chuxiong belongs to the arid area in Central Yunnan Province. The water resources are unevenly distributed in space and time, and the resources of water shortage and engineering water shortage coexist. In order to make the maximum groundwater resources exert social and economic benefits of the area, through the analysis of the representative sampling from different types of groundwater in red beds, Arc GIS software is used to establish the red layer chemical space groundwater model, to analyze the chemical characteristics and spatial red layer groundwater distribution in Chuxiong area. The results show that: the hydrochemical types of this area are mainly HCO_3-Ca, HCO_3-SO_4-Ca in water; groundwater system circulates from mountain plain recharge area to drainage area, underground hydraulic gradient changes from big to small, and the runoff gradually slowed down with centralized supply and scattered excretion, along the way from strong to weak run off law.
引文
[1]陈倩,毛郁,李成.四川泸州红层区浅层地下水水化学特征分析[J].中国测试,2013,39(6):271-277.
[2]陈伟海,黄敬熙,张之淦.小平阳红层区水文地质特征与水资源开发[J].中国岩溶,1995,14(4):336-342.
[3]段仲源,寇敏燕,熊智彪,等.红层裂隙水特征与找水方法[J].华东地质学院学报,2002,25(4):283-287.
[4]韩庆之,曾克峰,梁杏.区域岩溶水水化学特征与渗流研究[J].地质科技情报,1998,3(17):84-91.
[5]刘海冲,鲁士魁.四川盆地红层地下水的富集规律与资源评价[J].工程勘察,1983,7(1):72-74.
[6]卢金凯.基岩裂隙水的野外调查方法[M].北京:地质出版社,1985:102-112.
[7]易武英,苏维词.基于RS和GIS的乌江流域生态安全度变化评价[J].中国岩溶,2014,33(3).
[8]田帅,刘国东,倪福全.2012.BP与GIS耦合的地下水水质综合分析评价[J].水电能源科学,2012,30(2):38-41.
[9]GARRELS A chemical model for sea water at 25℃and one atmosphere totalressue[J].American Joumal of Science,1962,17(5):21-38.
[10]GARRLES R M,CHRIST C L.Solution,Minerals,and Equilibria[M].New York:Har Per and Ro W,1965:l-62.
[2]陈伟海,黄敬熙,张之淦.小平阳红层区水文地质特征与水资源开发[J].中国岩溶,1995,14(4):336-342.
[3]段仲源,寇敏燕,熊智彪,等.红层裂隙水特征与找水方法[J].华东地质学院学报,2002,25(4):283-287.
[4]韩庆之,曾克峰,梁杏.区域岩溶水水化学特征与渗流研究[J].地质科技情报,1998,3(17):84-91.
[5]刘海冲,鲁士魁.四川盆地红层地下水的富集规律与资源评价[J].工程勘察,1983,7(1):72-74.
[6]卢金凯.基岩裂隙水的野外调查方法[M].北京:地质出版社,1985:102-112.
[7]易武英,苏维词.基于RS和GIS的乌江流域生态安全度变化评价[J].中国岩溶,2014,33(3).
[8]田帅,刘国东,倪福全.2012.BP与GIS耦合的地下水水质综合分析评价[J].水电能源科学,2012,30(2):38-41.
[9]GARRELS A chemical model for sea water at 25℃and one atmosphere totalressue[J].American Joumal of Science,1962,17(5):21-38.
[10]GARRLES R M,CHRIST C L.Solution,Minerals,and Equilibria[M].New York:Har Per and Ro W,1965:l-62.