土壤水

土壤水分数量化方法C的水平。

Quantitative Analysis on Soil Water Content C were measured by the method of radioimmunology .

土壤水溶性P含量及在酸性条件下P的释放量与土壤总P呈正相关，与土壤pH负相关。

Water-soluble P and P released under the acidic condition increased with soil total P and decreasing soil pH.

溪流水中的pH值要显著高于土壤水溶液中的，而电导率又显著低于后者。

The pH values were higher and conductivity values were lower in stream water than in wetland soil water .

将稳健统计学（RS）引入地质统计学（GS），研究土壤水盐特性空间变异。

The Robust statistics is combined with Geostatistics to study the spatial variability of water and salinity in soil .

溪流相邻高地通过地下径流向溪流中N素的输入，主要是以硝态氮的形态通过土壤水的输入；

N in the main form of nitrate through the subsurface runoff was put into the stream , the vegetation-covered riparian had high on the nutrient in the soil water .

本文在对非饱和土壤水运动方程时间差分格式中引入了水力传导度K（θ）对含水率θ的变化率和压力梯度在空间上的变化率，两个因子。

In this paper two variation rates , K / θ and h2 / Z2 , are introduced in a time difference scheme of the equation of unsaturated soil water flow movement .

结果表明：非饱和土壤水扩散率变化于8.30×10-4-4.23cm2／min之间，土壤水分扩散率随土壤含水量的变化而变化。

The results show that the unsaturated soil water diffusivity ranged from 8 . 30 × 10-4 to 4 . 23 cm2 / min , and was influenced by soil moisture .

运用MicrosoftAccess97建立了基于Windows平台的土壤水盐动态数据库.此数据库由数据系统、查询系统、水盐动态曲线库和系统信息四部分构建而成；

The dynamic database of soil water and salt was built by Microsoft Access 97 on Windows platform . The database consists of four parts : data system , inquiry system , and the dynamic curve base of water and salt .

以菲为代表性化合物，利用摇瓶吸附实验研究土壤水分配体系中溶解态有机碳（DOC）对有机碳归一化吸附系数测定结果的影响。

Organic carbon normalized sorption coefficient of phenanthrene in soils was determined in a batch experiment . The influence of the presence of dissolved organic carbon ( DOC ) on sorption coefficient was also investigated .

对于一维非饱和弥散实验，在分析溶质的水动力弥散理论的基础上，推导出求解非饱和土壤水动力弥散系数Dsh（θ）的计算公式。

THE THEORY OF DISPERSION AND THE DETERMINATION OF DISPERSION COEFFICIENTS On the basis of theoretical analysis the formula for calculating the solute hydrodynamic dispersion of unsaturated soil is also attained .

20cm以下深层土壤水铵态氮的浓度与未加DMPP的处理无显著差异，并没有明显导致铵态氮的垂直迁移；

No obvious difference is found on NH ~ + _4-N concentrations collected from deep layer soil solution under 20 cm between regular urea and the urea added with 1 % of DMPP .

结果表明，灌水时供水压力大于15kPa、控制灌水下限土壤水吸力设定为30kPa，该PVC管滴灌系统出水均匀度可达到既定标准。

The results show that the uniformity of irrigation with PVC tube can meet the designed standard , using 15 kPa as irrigation pressure and 30 kPa soil water suction as the lower limit of irrigation .

Nassar关于土壤水、热和溶质耦合运移理论的研究取得了一定进展。

Some development in the theory of simultaneous transport of heat , water and solute in soils proposed by NASSAR is required .

土壤水的表观或平均活化能是耗费在一个水分子越过两个流线准平衡位置势能垒所需能量，此能垒是速率限制因子，可由Arrhenius方程式计算。

The apparent or average activation energies for soil water is the energy expended by a molecule in surmounting a potential energy barrier between tWo quasi-equlibrium positions along the line of flow , and it is factor of rate-limiting and can be calculated by Arrhenius equation .

连续3a试验研究结果表明，陕北丘陵沟壑区旱梯田采取双料沟垄组合覆盖，可明显改善土壤水、气、热环境状况。

Results from the 3 years of field experiment indicate , that the mulching measure with plastic film on the ridge and straw in the ditch in the dry terraced land in North Shaanxi Loess Plateau hilly and gully region could improve the soil water , air and temperature condition .

土壤水年平均蒸散量为477.8mm，与蒸散对应年份的平均降水量为491.8mm，97%的降水参加了农田生态系统内水分循环，其循环方式为土壤作物大气。

The average transpiration of soil water was 477.8mm and the atmospheric water was 491.8mm relatively , 97 % of the atmospheric water entered the water circulatory system of field ecosystem , the circulation was of soil-crop-atmospheric .

土壤水-盐运移规律数值模拟研究综述

Review on Numerical Models of Transfer Between Soil Water and Salt

干旱及半干旱区土壤水热传输模式研究

A Water and Heat Transport Model in Arid and Semiarid Regions

土壤水运动与作物吸水

Movement of Water in Soil and the Water Absorption of Crop

低定额灌溉条件下农田土壤水蒸散模型的研究

Study on evapotranspiration model of agricultural soil water under low irrigation

新疆克州灌区灌溉排水与土壤水盐监测研究

Irrigation and Drainage and Soil Water Monitoring in Kizilsu Agricultural Area

土壤水与地下水溶质运移联合模型

The Solute Transport Model of the Groundwater Combined With the Soil Water

甘肃黄土高原地区土壤水热特征分析研究

Hydro-thermal Feature of Soil in the Loess Plateau , Gansu

河北省土壤水资源分区及评价方法

Division and Evaluation Method for Soil-water Resources in Hebei Province

兰州市郊区土壤水稳定性微团聚体的组成分析

Composition of stable micro-aggregates in the soil of Lanzhou suburbs

结晶有机肥对土壤水稳性团粒组成及微结构的影响

Effect of Crystal Organic Fertilizer on Water-stable Aggregates and Micro-structure of Soils

黄土高原旱地土壤水资源管理

Management for Soil Water Resource in Dryland of Loess Plateau

集水技术与林木生长的土壤水环境研究

Rainfall Collecting Techniques and Soil Moisture Environment for forest Growth

间歇入渗情况下土壤水运动滞后作用的影响

Effect of soil water hysteresis on simulation infiltration and redistribution

沟底膜孔灌水条件下土壤水入渗规律的数值模拟

Numerical simulation of soil water movement under condition of film hole irrigation