查询词典 Hydrus

A constellation in the polar region of the Southern Hemisphere near Indus and Hydrus,''.

杜鹃星座南半球极地地区的一个星座，靠近印第安座和水蛇星座，''。

A constellation in the polar region of the Southern Hemisphere near Indus and Hydrus, containing the smaller Magellanic Clouds.

杜鹃星座南半球极地地区的一个星座，靠近印第安座和水蛇星座，包含较小的麦哲伦云

The model has overlay and index method as the basic, mathematical model and statistical method embedded to form an integrated model. The HYDRUS model is performed to obtain the rating system, and principal component analysis and factor analysis are used to get the weighting system.

该模型以参数系统法为基础，将数学模型和统计方法嵌入该综合模型中，通过HYDRUS模型进行数值模拟来建立评价因子的评分体系，权重体系由主成分－因子分析法得到。

The simulation result of water and salt distribution is verified using data obtained from experiment that is conducted in the greenhouse. The result indicts that good agreement is obtained between simulated and measured water and solute distribution, and simulating precision of Hydrus 2D is good enough for selecting the design and running parameters of drip irrigation system.

结果表明，土壤水分与盐分浓度的模拟值与实测值吻合良好，在模型建立正确，土壤水分与盐分运动参数选取合理的情况下，Hydrus 2D对于水分与盐分运移的模拟精度均可以满足滴灌系统设计与运行参数选取的要求。

A model simulating water and solute distribution under from drip irrigation is established, which is numerically solved using Hydrus 2D software.

利用Hydrus 2D软件对棉花苗期咸水滴灌水盆运移数学模型进行求解，并由田间实测数据对模拟结果进行了验证。

The transport of soil water in sunflower field was simulated by HYDRUS model in Hetao irrigation area in Inner Mongolia, and thus the change of soil water in the different two periods of irrigation was distinguished significantly.

通过HYDRUS模型模拟计算了河套灌区不同灌溉时期葵花根层（0~40cm）土壤水的动态规律。

In this paper, two types of transport models widely used for water and salinity in soils are introduced; one is physical models, which include convection-dispersion Equation, stream tube model and HYDRUS developed by US Salinity Laboratory. At the same time, the parameter research is related to physical models. Another is system models, such as Transfer Function Model and BP-Network model. The resemblances and the differences among these modeling are compared and analyzed.

介绍了国内外目前应用较为广泛的几种水盐运移模型，包括对流－弥散模型、流管模型和美国国家盐渍土改良中心开发的HYDRUS模型等3种物理模型以及相关的模型参数研究；两种系统模型：传递函数模型和BP人工神经网络模型。

So the Hydrus 2D was selected to simulate the soil water movement in ET covers with different cover thicknesses,the simulations shown that the optimal ET cover in Wuhan area should be 120-140 cm loamy soil layer with shrub.

因此采用Hydrus 2D软件对不同土层厚度腾发覆盖系统的渗沥控制效果进行数值模拟，结果表明，在武汉地区采用120～140 cm厚度壤土层和灌木构成的腾发覆盖系统是确保渗沥控制效果的经济合理方案。

By using the HYDRUS computer program, one dimensional water salt movement was simulated under diffirent well canal combined irrigation schemes with typical irrigation regime for cropping wheat in spring and corn in late summer.

针对灌区土壤地下水位高、地下水矿化度高、潜水排泄以蒸发为主等原因，研究了基本灌溉模式、井渠结合灌溉模式的改变对不同程度盐碱地改良的效果，提出适合银北灌区不同盐碱地的灌溉制度

Then it was also used to simulate infiltration under different surface ponding.

采用土柱降雨入渗的观测数据进行模型参数率确定及验证，结果表明HYDRUS-1D模型具有良好的模拟效果。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。