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- The groundwater level forecast and analysis in main canal of mid-route of S-N Water Transfer 南水北调中线总干渠地下水位预测分析
- the groundwater level forecast 地下水动态预测
- The groundwater level appears marked spatiotemporal dynamic change rule after the transport. 结果显示,输水后地下水位表现出明显的时空动态变化规律。
- The groundwater level was an important reason for soil salinization its contribution was of 11.1%. 地下水水位过高是引起土壤盐渍化的重要原因,贡献率11.;1%25;
- In areas which are prone to salinization-alkalization and water-logging, measures shall be taken to control and lower the groundwater level. 在容易发生盐碱化和渍害的地区,应当采取措施,控制和降低地下水的水位。
- Relationship between the precipitation and the declining quantity of the groundwater is highly linear correlation and the correlation coefficient is 0.7798. When yearly precipitation increases 100 millimeters, the groundwater level will ascend 0.66 meter. 年降水量与年地下水位下降速率呈高度线性相关;相关系数r=0.;7798;年降水量每增加100mm则地下水位可回升0
- Some xerophytic arbor and bush restored obviously with the change of habitat. Correspondingly, the groundwater level, vegetation coverage, diversity of biology, the species richness and crown of Populus euphratica all changed. 相应地 ;下游植被的生态响应也很显著 ;沿河岸许多种草本植被又重新出现 ;而一些耐旱乔、灌木随着生境的改变 ;长势也出现明显好转 ;主要表现在植被盖度、植物多样性指数和丰富度指数的提高以及胡杨冠幅的加大 .
- The groundwater level of 63 of the 186 cities and regions subject to monitoring has increased. However, in general, the decline of groundwater prevails, with affected areas accounting for 62 percent. 全国186个主要地下水位监测城市和地区中,有63个城市和地区地下水位有所回升,但地下水位总的发展趋势仍以下降为主,下降区比例高达62%25。
- However, the groundwater level is not related to the growth rate and PPO activity of Haloxylon Bunge, dry air is the key factor of restricting growth of Haloxylon Bunge, super-xerophyte. 大气干旱是制约梭梭属植物生长的关键因子。
- Application of artificial neural networks to groundwater level forecast for irrigation district with well and canal 人工神经网络理论在井渠结合灌区地下水动态预报中的应用
- groundwater level forecast 地下水位预报
- The relationship between evapotranspiration in wheat field and the groundwater level in Beijing-Tianjin Corridor 京津走廊麦田蒸散及其与地下水位变化关系研究
- The environmental effect of surface mining on the groundwater was studied by leaching experiment and model forecast. 通过淋溶实验和模型预测对露天开采对地下水的影响进行了研究。
- The dynamic drawdown forecast was performed and the groundwater man agement model was developed, based on a numerical quasi-three-dimensional simula tion model introduced. 引入准三维流数学模型进行地下水动态预报及建立地下水管理模型。
- 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。
- As a result, 50 per cent of the groundwater in cities is polluted. 结果,城市50%25的地表水受到污染。
- The groundwater mostly is replenished by river courses. 地下水是由河流提供的。
- Two economists from the macroeconomic point of view, analyze the price level forecast future price trends. 两位经济专家从宏观经济的角度,剖析价格水平,预测物价未来趋势。
- the groundwater level 地下水位
- Laws of migration of the groundwater flow in the Anba ore block are defined. 借助计算机技术对矿区地下水等水头线进行了模拟,确定了区内地下水流的运移规律。