In both conditions, the peak of preferential flow appeared earlier than that of infiltrated soil water flow.
在两种情况下，优先流的峰值都先于土壤渗流。
According the soil water flow condition, four formulas for calculating the Parameters of dispersion have been acheived.
对四种不同水流及初始盐分浓度条件下的弥散系数计算给出了具体公式和试验方法。
The field tests are carried out to study the characteristics of heterogeneous soil water flow in tilled land and fallow field respectively.
通过田间试验研究探讨了土壤水非均匀流动特性及其描述方法。
Macropore is the common in forest soil and has great impacts on soil water flow. It is main cause by animal activity and the plant roots after death.
森林土壤动物活动和植物根系死亡后形成大孔隙是森林土壤中普遍存在的现象。对森林水分运动过程有重要的影响。
Such measures as row spacing reduced and close planting and furrow growing are propitious to optimize soil water flow system and they can greatly increase crop's yield and water use efficiency.
沟播处理、缩行密植等优化土壤水流动系统技术，均能较大程度地提高作物的产量和水分生产率；
In heavily sloped areas, higher flow systems like sprinklers can cause the water to run off before it has a chance to soak into soil.
在严重倾斜的地区，如喷头更高的流量系统，可导致水流失，才能有机会渗入土壤。
However, when precipitation rate is large enough and soil water goes beyond the field capacity, the excessive soil water will flow laterally to the lower levels through noncapillary pores.
而当降水强度较大，以致使土壤水分大于田间持水量时，超过田间持水量部分的土壤水会很快流往较低的台阶。
They hold soil in place during rains and ease the water flow.
大雨侵袭时，这些作物可以保持土壤，减缓水流。
Downstream water flow slow, siltation of the alluvial soil more and more, forming a great many of the Delta islands.
下游水流缓慢，淤积的冲积土愈来愈多，形成一个有许多岛屿的巨大三角洲。
These textile materials act AS a barrier to the movement of soil particles but permit the flow of water necessary for adequate drainage.
这些纺织材料相当于一道屏障，它阻止了土壤颗粒的运动，但允许水的流动，以利于排水。
Temperature and flow fields, and interfaces of water freezing in soil and crude oil solidifying in the pipeline were obtained through numerical simulation.
通过数值模拟，获得了停输期间温度场、流场以及土壤水分结冰界面和管道中原油凝固界面的分布情况。
Flexible application of technique of continuous flow analysis can analyze most of water samples, such as water and wastewater, soil or solid waste, extraction liquid and beverage.
灵活运用连续流动分析技术可对大多数水性样品如水和废水、土壤(或固体废弃物)提取液、饮料等进行分析。
Too much mulch can restrict oxygen and water flow to the soil and harm roots.
太多的盖土会阻止氧气和水流入土壤，同时还会对根系有害。
Water and solutes go fast through the macropores in soil and pollute groundwater. Field and laboratory tests are needed to determine the macropore flow properties.
土壤中普遍存在的大孔隙使水及溶质快速穿过土壤，污染地下水，确定土壤大孔隙流性质需要大量的野外和室内实验。
The slope runoff formed by soil erosion is two-phase flow constituted by water and sand.
土壤侵蚀所形成的坡面径流是水沙液固两相流。
It was lightly influenced by bulk of reserved water adjustment in drought stress, but the absolute reserved water adjustment was depended on SAP flow, which influenced by soil water conditions.
干旱胁迫对贮存水调节量的影响不显著，但是绝对调节能力随干旱胁迫程度的增加而增加。
Lateral routing flow of surface water and subsurface soil water become necessary in land surface simulation in mountainous regions.
地表水以及土壤水的侧向流动成为山区水文过程必须考虑的部分。
LEACHC is the salinity model describing water flow, solute movement and salt accumulation in soil profiles.
LEACHC是描述土壤水分运动、溶质运移和盐分积累的盐度模型。
A spatially-random network model by using measured pore morphology was then set up to simulate the pore scale flow processes, and to predict the soil water retention curve near saturation.
在此基础上建立了基于土壤孔隙形态学特征的随机网络模型，在孔隙尺度模拟了土壤中的水分运动过程，并预测了近饱和土壤水分特征曲线。
The status and pollution characters of soil, irrigation water and air quality in agricultural producing area were analyzed, and a flow chart of division for non-producing area was also given.
本文对我国农产品产地土壤、水和大气的环境污染现状进行了分析和描述，提出了禁产区划分的技术程序。
The conversion of landslide to debris flow is a fluidization process related to soil liquefaction; it is the result of violent interaction of soil and water.
滑坡转化为泥石流的过程是一个和土体液化密切相关的流态化过程，是土体和水体强烈相互作用的结果。
The appearing and lasting time of pipe flow is related to the rainfall intensity, duration of rainfall, the previous water content of soil and the location of soil pipe in soil section.
管流出现的时间、管流历时与降雨强度、降雨历时、土壤前期水分含量和土管所处的土壤剖面位置等因素有关。
Calculation of quantity of soil evaporation takes an important part in moisture content prediction, rainfall surface flow calculation and evaluation of water resources.
土壤蒸散发量的计算，在墒情预报、降雨径流计算及水资源评价中都占有重要的地位。
There exists a multi linearship between the stem sap flow velocity and the soil moisture, soil water potential.
油松树干液流速率与土壤容积含水量和土壤水势呈明显线性相关关系。
Water potential reflects energy level of soil water and the gradient of water potential is an impotent factor describing direction and velocity of water flow.
水势反映土壤水的能态，而水势梯度则是决定水流方向和速度的重要因素。
Although there are a lot of researches on the seepage flow of underground water, few of them are for soil stone mixture because of its largely increasing scale of FEM solution.
虽然用有限元法分析地下水渗流的工作很多，但对土石混合介质而言，由于有限元法的解题规模迅速增加，其研究甚少。
And flow of water and air simulated by numerical model of water-air two-phase flow could be used to quantitatively analyze the influence of air pressure on infiltration of water into soil.
采用水-气二相流模型模拟得到水相、气相的流动状态，为定量研究孔隙气压力对入渗水流的影响提供了有效途径。
The structure of macropore plays an important role in water flow and solutes transport in soil, and influences the environment of underground water.
土壤大孔隙结构对土壤中水流及溶质运移以及地下水环境有着深刻影响。
The structure of macropore plays an important role in water flow and solutes transport in soil, and influences the environment of underground water.
土壤大孔隙结构对土壤中水流及溶质运移以及地下水环境有着深刻影响。
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