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土壤转换
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  “土壤转换”译为未确定词的双语例句
     Influence of Soil Changing on Root Development and Function of 2-year-old Pingyitiancha(Malus hupehensis Rehd.
     土壤转换对二年生平邑甜茶根系发生与功能的影响
短句来源
     ESTIMATION OF SOIL HYDRAULIC PROPERTIES-PEDO-TRANSFERFUNCTIONS
     土壤水力性质的估算——土壤转换函数
短句来源
     The predicted values agreed with the observed ones fairly well, and the BP neural network model had rather high prediction precision.
     所建基于BP神经网络的土壤转换函数模型对土壤水力学参数有较好的预测效果。
短句来源
     This means make the measurement of parameters very easy in big scales. PTFscan also used to study the affects on hydraulic properties of soil parameters.
     3.针对土壤水分运动参数的单一参数模型,建立了相应的土壤转换函数,具有较高精度,能够满足大尺度的土壤水分运动参数的估算,解决了大尺度土壤水分运动参数测试难的问题,也对进一步研究土壤特性对土壤水分运动参数模型的影响有着重要的意义。
短句来源
     4. The combination of the one parameter models and PTFs is not only estimate theparameters of soil hydraulic properties, but also estimate variation coefficient of soilhydraulic properties directly.
     4.将土壤转换函数和单一参数模型结合起来,不但可以估算土壤水分运动参数,而且还可以直接估算各参数空间变异的变异系数。
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  相似匹配句对
     Scaling in the Soil Erosion Research
     土壤侵蚀研究的尺度转换
短句来源
     Design of switching circuit of soil moisture detection
     土壤水分检测转换电路的设计
短句来源
     Machine Proccessing of Remotely Sensed Data and Soil Information Systems and Remote Sensing and Sail Survey
     土壤遥感
短句来源
     soil fertility;
     土壤肥力;
短句来源
     Transforming Bridge
     转换
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The development and function of root were studied using 2 year old Pingyitiancha( Malus hupehensis Rehd.).The results are as follows:the root absorpting surface area,H + secreting rate and NO - 3 absorbting rate were higher in the treatment of changing soil from clay loam to sandy loam than in the treatment from sandy loan to clay loan.But the values of both the two treatments were lower than the nontreated control.The number,growing vigor and distriburion of the new roots were all higher,stronger and...

The development and function of root were studied using 2 year old Pingyitiancha( Malus hupehensis Rehd.).The results are as follows:the root absorpting surface area,H + secreting rate and NO - 3 absorbting rate were higher in the treatment of changing soil from clay loam to sandy loam than in the treatment from sandy loan to clay loan.But the values of both the two treatments were lower than the nontreated control.The number,growing vigor and distriburion of the new roots were all higher,stronger and wider in the treatment of clay loam to sandy loam,while many absorbting roots died in the treatment of sandy loam to clay loam.

以 2年生平邑甜茶为试材研究表明 :土壤转换后 ,根系的发生与功能有所改变。由粘壤土转入沙壤土的根系吸收表面积、分泌H+ 速率和吸收NO- 3速率比由沙壤土转入粘壤土的高 ,但均比未处理植株低 ;前者新根量大 ,生长势强 ,分布广 ,后者的吸收根大量死亡。

Soil hydraulic properties can be estimated from soil basic properties such as soil texture, bulk density and soil organic matter, which can be obtained easily. These estimating functions are called as Pedo-Transfer Functions (PTFs) . Based on the summary of relevant study on PTFs, data collected from Huabei Region was analyzed in this paper. Some PTFs have been established and verified. It was found that the PTFs were useful in the estimation of soil hydraulic parameters in a regional scale.

利用一些易获得的土壤理化参数可以估算土壤水力性质,这些估算方程统称为土壤转换函数,即PTFs(Pedo-Transfer Functions)。本文综述了目前国内外土壤转换函数研究的概况,并利用在华北地区收集到的实测资料,建立了一些土壤转换函数,通过对部分转换函数作的检验和评估,总体而言,所建立的各类模型的预测效果都比较理想,应用于小比例尺的区域研究是可行的。

This paper introduces the advances and status in research of various direct methods (include two categories, ie, laboratory and field methods) and indirect methods such as the Pedotransfer function, the Fractal, the Morphology, the Numerical inverse method and the empirical formula etc for determining soil hydraulic properties, including their inherent advantages and deficiencies In order to extend the application and enhance the prediction accuracy, new experimental techniques need to be continuously...

This paper introduces the advances and status in research of various direct methods (include two categories, ie, laboratory and field methods) and indirect methods such as the Pedotransfer function, the Fractal, the Morphology, the Numerical inverse method and the empirical formula etc for determining soil hydraulic properties, including their inherent advantages and deficiencies In order to extend the application and enhance the prediction accuracy, new experimental techniques need to be continuously introduced and measurement instruments improved Concurrently, the comprehensive studies integrating all theoretical and experimental information relevant to the prediction of unsaturated soil hydraulic properties should be carried out

介绍了确定土壤水力性质的各种直接方法(包括实验室方法和田间方法两大类)和间接方法如土壤转换函数方法、分形方法、形态学方法、数值反演方法和经验公式法等的研究进展和现状,指出了它们各自的优点和存在的不足。认为要不断地引入新的实验技术和改进测定设备,并把估计土壤水力性质的各种理论方法及实验信息有机地结合起来进行综合研究,以扩大它们的适用范围和提高预测精度。

 
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