石家庄农业区地下水位对灌溉用水响应特征  

Response characteristics of irrigation water impact on groundwater level under climate change

作　　者：冯慧敏[1] 张光辉[2] 王电龙[3] 

机构地区：[1]山西农业大学城乡建设学院,太谷030801 [2]中国地质科学院水文地质环境地质研究所,石家庄050800 [3]山西省水利建设开发中心,太原030002

出　　处：《山西农业大学学报（自然科学版）》2016年第10期751-756,共6页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家自然科学基金(41172214);山西农业大学科技创新基金(201306);山西农业大学科技创新基金(2015ZZ04)

摘　　要：[目的]为了探究在不同水文年份组合条件下,石家庄农业区地下水位衰变-涵养机制。[方法]基于近50年研究区地下水位及气象实测数据,采用彭曼-蒙蒂斯及相关分析等研究方法,明确了气候变化条件下研究区地下水位对灌溉用水的响应特征。[结果]在丰-丰水年份组合条件下,农业区地下水位可恢复2.13m;在枯-枯水年份组合条件下,农业区地下水位急剧下降,下降幅度可达2.51m;在平-枯水年份组合条件下,农业区地下水位仍呈下降趋势。冬小麦和夏玉米灌溉用水与地下水位改变的幅度呈正相关关系:灌溉用水量每增大100mm,在冬小麦生育期内,地下水位下降的幅度平均将增大0.26m;灌溉用水量每减少100mm,在夏玉米生育期内,地下水位下降幅度平均将减少0.26m。[结论]研究成果可为该区地下水资源的开发利用提供理论指导。[Objective]In order to explore the decay-recovery mechanism of groundwater level under different climate conditions in Shijiazhuang agricultural area.[Methods]Based on the measured meteorological data and groundwater level data of recent 50 years,utilizing the methods of Penman-Monteith formula and correlation analysis,explicated the response characteristics of crop irrigation water impact on groundwater level in different climate conditions.[Results]In combined condition of wet-wet year,groundwater level could recover to 2.13 m,the groundwater system could be effectively conserved.In combined condition of dry-dry year,the groundwater level declined sharply,up to 2.51 m.In combined condition of normal-dry year,the groundwater level of agricultural areas were still declining.Winter wheat and summer maize irrigation water demand were positive related to groundwater water level changing in Shijiazhuang agricultural area,an increasing of 100 mm for irrigation water,the groundwater level declining range would increase0.26 min the winter wheat growth period;every declining of 100 mm for irrigation water,the groundwater level declining range would decrease 0.26 min the summer maize growth period.[Conclusion]The research results can provide theoretical guidance for the development and utilization of groundwater resources in the area.

关 键 词：气候变化 地下水位 农业区 灌溉用水 

分 类 号：S152.7[农业科学—土壤学]