标题 | 华北平原典型井灌区地下水保障能力空间差异 |
范文 | 王电龙+张光辉+冯慧敏+田言亮+王金哲 收稿日期:2014-10-25 修回日期:2014-12-23 网络出版时间:2015-07-24 网络出版地址:http://www.cnki.net/kcms/detail/13.1334.TV.20150724.0910.001.html 基金项目:国家自然科学基金资助项目(41172214);中国地质调查局地质大调查项目(1212011220941);山西农业大学科技创新基金项目(201306) 作者简介: 王电龙(1981-),男,山东安丘人,工程师,博士生,主要从事农田水利与水资源合理利用研究,E-mail:fenghuimin1997@163.com 通讯作者: 张光辉(1959-),男,辽宁沈阳人,二级研究员,博士生导师,主要从事区域水循环与地下水可持续利用研究,E-mail:Huanjing@ heinfo.net 摘要:作为我国重要的粮食生产基地,华北平原的最主要灌溉水源是地下水。但是,从山前平原到滨海平原,该区地下水资源量差异巨大。为了揭示华北平原典型井灌区粮食生产地下水保障能力的差异,以山前平原保定、中部平原德州和滨海平原沧州地区井灌区为典型研究区,建立了地下水保障能力评价指标体系,并利用彭曼公式计算了粮食作物灌溉需水量,利用概率统计的方法分析了三个典型地区的地下水保障程度。研究结果表明:保定地区的粮食生产多年平均地下水保障能力为中等水平,德州和沧州地区均处于极弱水平;地下水保障程度随降水量增大呈直线增大,降水量每增加100 mm,保定地区保障程度增加4.9%,德州地区增加1.6%,沧州地区增加0.6%;未来50年(2011年-2060年),保定、德州和沧州地区的地下水保障程度均符合对数正态分布,其中保定地区主概率对应中等水平,概率水平为0.726,德州和沧州地区主概率均对应极弱水平,发生概率分别为0.577和1。 关键词:华北平原;井灌农业区;粮食生产;彭曼公式;需水量;地下水;保障程度 中图分类号:TV211.1 文献标志码:A 文章编号: 1672-1683(2015)04-0622-04 Spatial variation of groundwater guarantee extent in typical well irrigation area of North China Plain WANG Dian-long1,2,ZHANG Gang-hui1,FENG Hui-min1,3,TIAN Yan-liang1,WANG Jin-zhe1 (1.Institute of Hydrogeology and Environmental Geology,CAGS,Shijiazhuang 050061,China; 2.Shanxi Water Conservancy Construction & Development Center,Taiyuan 030002,China; 3.China Forestry College,Shanxi Agricultural University,Taigu 030801,China) Abstract:North China Plain(NCP) is an important grain production base in China,and groundwater is the main irrigation water resource.However,groundwater resource has significantly spatial variation.In order to reveal the spatial variation of groundwater guarantee extent for grain production in NCP,an evaluation index system of groundwater guarantee extent was developed on the basis of three typical regions including Baoding of pediment plain,Dezhou of central plain,and Cangzhou of coastal plain.The crop water requirements in the three typical regions were calculated using penman equation,and groundwater guarantee extents were analyzed using the statistical evaluation method.The results indicated that the annual average groundwater guarantee extent for grain production is the middle level in Baoding while the inferior level in Dezhou and Cangzhou;groundwater guarantee extent increases with the increasing of precipitation,and it can increase by 4.9% in Baoding,1.6% in Dezhou,and 0.6% in Cangzhou with the increasing of 100 mm precipitation;and groundwater guarantee extents of Baoding,Dezhou,and Cangzhou are in the logarithmic normal distribution in the future 50 years(2011 to 2060),and the main probability of Baoding corresponds to the middle level with the probability of 0.726 while the main probability of Dezhou and Cangzhou corresponds to the extremely inferior level with the probability of 0.577 and 1,respectively. |
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