基于大田土壤水分入渗试验与相关参数的测定，分析了耕作土壤入渗能力衰减过程，探讨了耕作土壤入渗能力衰减机理。
Based on soil water infiltration testing and related parameters measured in field, tillage soil water infiltration capacity attenuation process was analyzed and the mechanism was discussed.
张力渗透仪是一种根据多维入渗原理进行土壤水分和溶质运移参数原位测量的仪器。
Tension infiltration meter is a kind of devices measuring soil moisture and solute movement parameters on the spot according to multi-dimensional infiltration theory.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
土壤水分是全球能量与水循环中的重要参数。
Soil moisture is a key parameter in the global energy and water cycle.
对国内外土壤水分动力学参数研究进行概述和分析。
The present situation of soil water dynamic parameters research are summarized and analyzed in this paper.
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.
土壤水动力学参数的推导和土壤水分运移分布的数值模拟是研究土壤水分运动规律的重要部分。
Derivation soil hydrodynamic parameter and numerical simulation of soil water movement and distribution are important parts of soil water movement research.
在利用微波辐射计进行对地观测的过程中，陆地表面特性参数（如土壤水分、土壤粗糙度和植被冠层）是土壤微波辐射的重要影响因素。
Observing the land with radiometer, the land parameters, such as soil moisture, soil roughness and vegetation layer, have great influences on the soil microwave emission.
土壤水分是水文学、气象学、土壤学、生态学以及农业科学等研究领域中的一个重要的参数。
Soil moisture is an important factor in research fields of hydrology, meteorology, pedology, ecology, agricultural science and so on. But it is a difficult one to gain.
利用神经网络对土壤水分进行预测时，一般需考虑多个因素(如气象因素和土壤特性等)，需测量多种参数值。
When the soil water was forecasted with neural network, a few factors were considered, and a lot of parameters were needed to be measured.
这样，一次试验可以同时测得非饱和土壤水分运动的全部参数。
Therefore, all parameters concerning the movement of unsaturated soil water may be determined at the sa-me …
采用多元逐步回归模型用常规土壤物理参数对土壤水分入渗模型参数进行预报是可行的。
It is feasible to predict soil infiltration capacities by routine physical parameters with stepwise regression models with multiple units.
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.
论述了国内外在土壤水分入渗方程模拟、土壤水分运动参数和SPAC理论等方面的研究进展。
The research at home and abroad on the simulation of soil water infiltration equation soil water movement parameters and the theory of SPAC were reviewed.
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.
非饱和土壤水分扩散率是研究土壤水分运动规律必不可少的基本参数之一。
Unsaturated soil water diffusivity is a necessarily basal parameter to study soil water movement laws and quantificationally analyze soil water movement with method of mathematical simulation.
该文研究土壤结构改良剂对土壤水分动力学参数的影响。
In this paper, the effects of soil amendments on soil hydrodynamic parameters were studied.
应用土壤水分实测数据对SWAP模型参数进行了率定，结果表明率定后的模型能够较好的反映出当地农田实际水分的动态变化过程。
The parameters in the SWAP were calibrated with the data of irrigation experiment The calibrated model represented preferably the field soil water movement.
本文主要综述了土壤空间变异研究的进展，包括土壤水分特征及状态参数、物理性质、化学性质、重金属及其它元素的空间变异研究。
This paper reviews advances in the research on soil spatial variability, including soil water characteristics, soil physical properties, chemical properties and heavy metal, etc.
用中子仪测定土壤水分含量和变化量，分析计算水文地质参数，所得结果与其它方法测定值相近，可以认为中子仪测定水文地质参数是一种新的手段和方法。
To calculate the above parameters, water content in soil and its variety were measured by a neutron probe. This method is simple and the results are close to those obtained using other methods.
土壤水分入渗特征参数的空间变异规律是区域尺度参数估值的基础。
Based on soil water infiltration experiments in corn field, this paper analysed and discussed yearly change characteristics of soil water infiltration.
建立、验证了土壤水分入渗参数的多元逐步回归模型。
Soil water infiltration capacities and parameters of soil water infiltration model make severe change in agriculture productive period, but have definite change law as well.
模拟结果表明，土壤质地、土壤初始含水率、滴头出流量、滴头埋深等均是影响地下滴灌土壤水分分布的重要参数。
Results show that soil texture, initial soil - water content, trickle discharge rate, the trickle - buried depth and so on are all the I...
模拟结果表明，土壤质地、土壤初始含水率、滴头出流量、滴头埋深等均是影响地下滴灌土壤水分分布的重要参数。
Results show that soil texture, initial soil - water content, trickle discharge rate, the trickle - buried depth and so on are all the I...
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