从土壤水分下渗能力曲线出发，从理论和实验分析两方面说明水土保持措施下土壤入渗性能的改良作用。
Based on infiltration capacity curve, the paper demonstrates the amelioration of soil infiltration capability under the soil and water conservation measures from theoretical and experimental analysis.
结果表明，该模型的计算值与实测值吻合的非常好，说明通过优化法确定非饱和土壤水分特征曲线是可行的。
The result shows that the values of computation agree with the experimental data fairly well through comparing calculating soil moisture characteristic curve with the experimental one.
说明：基于粒子群的神经网络优化算法的应用，在土壤水分特征曲线中的应用。
Neural network based on particle swarm optimization algorithm applied in the soil moisture characteristic curve application.
使用两条面粉蛋白质测定曲线，在连续改变样品水分的条件下，测试了面粉的蛋白质含量。
In a test, protein content in wheat flour was determined using two testing curves under the condition of continuously altering the moisture content in the sample.
采用回归分析方法建立了参数与土壤物理特性间的函数关系，为采用土壤颗粒组成等土壤物理特性确定土壤水分特征曲线提供了指导。
A fitted relationship between the parameters and the soil texture was established, with which the model parameters of soil water retention curves can be predicted by the soil physical characteristic.
负水头控制原理与多孔膜材料相结合提供了一种测定土壤水分特征曲线的新装置和新方法。
Principle of negative hydraulic head and multi-pore materials were used to put forward a new setup and method for the measurement of soil-water characteristic curve.
通过水分特征曲线方程对试验数据的拟合，研究了拟合参数随干密度的变化情况。
A equation was used to fit the data of SWCC, and the relation between fitting parameters and dry density was studied.
年土壤水分盈亏曲线的等值线则比较零乱；
The isopleth of soil water surplus and deficit was scattered.
土壤水分特征曲线是土壤水分运动研究必不可少的环节之一。
The water retention curve is one of the essential links to study the soil water movement.
试验研究了用水分活度仪测定稻谷吸附与解吸等温线方法，并由所测数据，计算机绘出等温线曲线。
A method for detecting adsorption and desorption data of the rough rice was developed by means of the water activity detector.
并根据水分供应曲线，用聚类分析法将黑龙江省分为不同类型的干湿区。
And dry and wet regions were separated by use of cluster analysis based on the water variation for Heilongjiang province.
土壤水分特征曲线是表征土壤中水的含量与势能之间的关系，是研究包气带土壤水分的保持和运移所用到的基本特性曲线。
Soil moisture curve is elementary curve that shows the relation between potential energy and the content of water soil and analyses retaining and transporting in soil water belt.
当谷物水分变化范围较大时，选用适当的曲线，近红外技术可以得到稳定可靠的蛋白质含量检测结果。
When grain moisture changes in a somewhat larger range, stable and reliable results can be obtained in protein test by means of near-infrared technique with the aid of an appropriate curve chosen.
本文简述了标定的原理、田间土壤水分特征曲线和非饱和导水率的标定方法，还给出了水分运动参数标定的实例。
In this paper, the concept and the method of scaling are described, and some examples of scaling of soil water characteristic curve and unsaturated hydraulic conductivity are given.
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。
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.
随着时间的增加，砂柱中的饱和度剖面逐渐接近于稳定时的饱和度剖面，对应于粗砂的土壤水分特征曲线。
As time progresses, the water saturation profile becomes closer to the steady-state profile, which corresponds to the soil-water characteristic curve of the coarse sand.
不同烟区的土壤水分特征曲线在低吸力时都比较陡直，随着吸力的增加特征曲线逐渐趋于平缓。
Soil water characteristic curves in different tobacco fields decline rapidly in low suction condition and become smooth and slow while suction growing.
本文建立了土体孔隙分布的分形模型，导出用分维和进气值表示的水分特征曲线和渗透系数的理论表达式。
By using this model the soil-water characteristics and permeability coefficient of unsaturated soil are deduced and expressed in fractal dimension and air-entry value.
结果表明，测定面粉蛋白质含量，有的曲线受水分影响较大，有的曲线不受水分变化影响。
The results showed that in wheat flour protein test, some testing curves were more subjected to the influence of moisture difference while the others were not.
根据离心机法测定土壤水分特征曲线随温度和干密度的变化情况。
In the different temperature and dry-density, the soil-water characteristic curve is established by the centrifuge test.
土壤水分特征曲线是模拟水分和化学物质在非饱和土壤中运移的关键参数。
Soil water retention characteristics served as a vital parameter in modeling water movement and chemical transport in unsaturated soil.
这一结果对于实际工作中根据风沙土壤颗粒大小分布的分形维数来预测沙漠风沙土壤水分特征曲线具有一定的指导意义。
This indicates that the sandy soil water retention curve can be predicted by the fractal model for sandy soil water retention curve.
结果表明：稻谷干燥过程中水分比呈指数曲线变化，风温越高，曲线越陡。
The result showed the ratio of moisture submitted index curve variety during paddy drying process, the temperature of drying medium is higher, and the index curve is steeper.
并结合特征曲线方程，给出了土壤水分扩散率的表达式。
With the soil water characteristic curve, the expression of soil water diffusivity is also given in this paper.
结果表明：一天中叶水势值与土壤水分状况密切相关，叶水势与土壤含水量呈正相关，回归方程为变形双曲线；
The results showed that there was a close relation between leaf water potential and soil moisture during a day.
结果表明，非饱和黄土的水分特征曲线可用幂函数关系描述；吸着水含量与毛细管水含量随基质吸力的增大而减小；基质吸力由吸着力和毛细管力形。
The water content of attraction and capillary decreased with the increase of the matrix suction, which consisted of attraction and capillary powers.
与指数曲线形的HCRF - E50相比较，S曲线形的HCRF - S70养分释放推迟是由于养分开始释放时所需水分量较大。
Delay in the release from the sigmoid-type HCRF-S70 is due to its larger amount of water requirement to start the nutrient release as compared to the exponential type HCRF-E50.
与指数曲线形的HCRF - E50相比较，S曲线形的HCRF - S70养分释放推迟是由于养分开始释放时所需水分量较大。
Delay in the release from the sigmoid-type HCRF-S70 is due to its larger amount of water requirement to start the nutrient release as compared to the exponential type HCRF-E50.
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