1.In this paper, the helium and argon isotopes of groundwater in Hebei plain are analyzed. According to "excess helium" (4He exc) 3He/4He ratios,δ3He value, 38Ar/36Ar and 40Ar/36Ar ratios, the helium and argon isotopes of groundwater in Hebei plain show seven characteristics: ①The concentrations of "excess helium" in groundwater increase in the flow direction of groundwater.
通过对河北平原地下水氦氩同位素进行分析比较,根据过剩He(4He exc)、3He/4He比值、δ3He和36Ar/38Ar及40Ar/ 36Ar值分析认为,河北平原地下水氦氩同位素有7个特征:①地下水中过剩He浓度沿地下水的流向而增高;
2.Based on the concept of the Digital Terrain Model (DTM), a digital elevation model and a digital groundwater level model for the lower Tarim River were constructed by use of the data of ground surface elevation from aeronautic photos and the data of groundwater level from observation wells. Then a digital groundwater depth model for this region was derived from the above two models.
根据数字地面模型的概念,利用航空拍摄的地面高程数据和地下水观测孔观测得到的地下水水位数据,建立了塔里木河下游地区的数字高程模型和数字地下水水位模型,并在这两个数字模型的基础上得到了塔里木河下游的数字地下水埋深模型.
3.Groundwater quality of five plots in the city of FuZhou-LinCHuan is evaluated and compared with the assessment results of aggregative index number method in groundwater quality evaluation. It is feasible and improves the accuracy of groundwater quality evaluation.
将评价结果与模糊综合评价法的评价结果进行对比,结果表明,BP神经网络对地下水水质评价是可行的,能够很好地解决评价因子与水质等级间复杂的非线形关系,评价结果的精度也得以大大提高。
4.Abstract: Through analysing systematically the conditions of engineerin g geology and hydrogeology, the regimes of groundwater level and data of deep wells, the p aleorelief, and the groundwater levels measured during the periods of foundation investigation of each existing building, the aberrant cause of groundwater level at Yangfangdian and its vicinity was derived, and the approximate scope of grou ndwater level anomalies in the above -mentioned area in March, 1999 was obtained by calculation.
文摘:该文全面系统地分析了羊坊店及其附近地区的工程地质和水文地质条件、地下水位动态、深井资料、古地形及现有建筑勘探时实测水位资料，指出了羊坊店及其附近地区地下水位异常的原因，并通过计算得出了1999年3月份该地区地下水位异常的大致范围。
5.On the basis of the monitoring results of land subsidence and calculation of deep groundwater resources by using water balance method, it is shown that the leakage recharge from its upper shallow groundwater account for approximately 38.2%, drainage of the clay layers, about 41.3%, water release from the aquifers, around 5.6% and lateral inflow, some 14.9%, of the total groundwater resources.
摘要根据天津平原地面沉降监测结果，采用水量均衡法，计算出深层地下水开采量中，浅层地下水越流补给量占38.2%，粘土性压密释水量占41.3%，弹性释水量占5.6%，侧向流入量占14.9%。
6.Nowadays, groundwater resource of Yinchuan is in short, and the system of groundwater management is also disordered; the ascription of the water rights power is unknown, lacking effective and restricted mechanism of groundwater and lacking the market leading.
摘要目前，银川市地下水资源短缺，地下水管理体系混乱，水权权属不明，缺乏有效的激励和约束机制，缺乏市场引导。
7.The geothermal water can be classified into three categories based on the time when replenishment take place and mixing extent with normal groundwater which are: geothermal water mixing with normal groundwater recharged mainly by the modem meteoric water; geothermal water mixing with normal groundwater water recharged by both ancient and modem meteoric water; deep-runoff geothermal water recharged mainly by ancient meteoric water.
根据降水补给的年代及混合程度可将地下热水分为主要由现代大气降水补给的混合型地下热水；由现代大气降水和古代降水补给的混合型地下热水；主要由古代大气降水补给的深部循环型地下热水。
8.Program for rational exploitation of groundwater will be developed to gradually raise the groundwater level. Emphasis would be laid on control over exploitation of groundwater for industrial and agricultural use.
制订合理开采地下水计划，逐步恢复潜水水位，重点控制工农业取用地下水的数量。
9.With field observation data and a groundwater solute movement model, a case study was conducted to forecast groundwater level and contaminant concentration in groundwater at certain time and at given spot.
采用现场观测、测试、建立封闭圩区地下水溶质运移数学模型 ,以及实例分析相结合的方式进行 ,预测给定时间后某地点的地下水水位及地下水污染情况 ,用以指导类似圩区水利工程建设与管理。
10.Thirdly, detailedly analyse the factors for groundwater vulnerability, include relief, substrate, climate, groundwater exploitation, groundwater quality and pollution resource etc add in six factors.
3、详细分析了莱州市地下水脆弱性的因子，分别从地形地貌、地层、气候植被、地下水开采、地下水水质与污染源等6大方面进行了分析，结果表明：不同的影响因子对地下水脆弱性的影响是各不相同的，并且与地下水脆弱性并不是完全的呈现正相关或负相关，这需要根据外部环境以及各因子的自身特征决定。
