On the basis of the experimental data in farmland, a function relationship between the potential evapotranspiration and the relative water content of the soil in the root zone was established.
以田间实验资料为基础，建立农田蒸散量和土壤相对含水量与潜在蒸散的函数关系。
The water content of the soil sample was changed by drying and humidification process. After different freeze-thaw cycles, the unconfined resilient moduli of the soil sample were tested respectively.
通过风干和增湿改变试件的含水量，并经历不同的冻融循环次数后，分别测试土体的无侧限回弹模量。
The first is to measure the water content of soil across the planet every three days to a depth of up to 2m.
第一是每三天测量一次全球深至2米处土壤中的水含量。
They must find the right combination of soil mix, water content and drying methods.
他们必须找到正确的土的混合物和正确的含水量以及正确的干燥方法。
Build the correlation between soil water content and topography of intertidal flat through statistics , and simulate the topography of intertidal flat in dafeng.
通过统计方法，建立出露潮滩土壤水分与实测潮滩地形的相关关系，并对大丰港堤附近潮滩地形进行了反演。
Straw mulched could improve soil granular structure, and increase the content of water-stable aggregates, so the ability of permeability, fertilizer and water conservation got improved.
秸秆覆盖还田促进土壤团粒结构形成，提高了土壤水稳性团聚体含量，从而改善了土壤通透性和保水保肥性。
Influence of soil texture, tillage practices and stubble on water storage content before wheat sowing was studied by using the method of contrast in Linfen and Xiangfen, Shanxi province.
在山西临汾、襄汾采用大区对比法研究了土壤质地、耕作方式及茬口对小麦播前土壤贮水量的影响。
The desalting efficiency of saline water decreased with increasing amount of leaching water and the concentration of saline water, but was independent of initial soil water content.
水分的脱盐效率随淋洗水量和入渗水矿化度的增加而减小，与土壤初始含水量无关。
The impacts of climate on potential evapotranspiration and soil water content under 2080's climatic condition were simulated with the model.
还利用建立的模型，模拟了2080年的气候条件变化对潜在蒸散量和土壤水分含量的影响。
In addition, plant root can also influence soil structure and water content, so the influence of plant root on the soil potential should not be neglected.
另外由于植物根系影响土壤结构与含水率，所以根系对土壤水势的影响也不可忽略。
The results showed that the content of chlorophyll and photosynthetic rate were decreased with soil water decreasing.
结果表明：光合速率和叶绿素含量均随土壤水分的减少而呈下降趋势。
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.
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。
Because of the distinction of soil property and humus content, soil water content is not ideal to indicate whether it is suitable to the growth of plant.
由于土壤性质和腐殖质含量的不同，土壤的含水量并不能很好地说明是否适宜植物的生长。
Through different thickness non-textile mulch and check treatments, in this paper the water soil content and some growth index of Robinia pseudoacacia during the growth period were studied.
在兰州市北山采用不同厚度的无纺布覆盖水平沟处理和无覆盖对照处理，在树木生长期内，对土壤水分和刺槐生长指标进行了测定。
This paper studies the relationship between content of organic matter and water evaporation in black soil under the condition of field and laboratory.
探讨了在田间及实验室条件下的土壤的有机质含量与土壤水分蒸发的关系。
Soil loosing can improve the physical characters and raise water content and porosity of range soil.
松土可改善土壤的物理性状，土壤含水率和土壤总孔隙度增加。
The dynamic relationship between the biomass of switchgrass and the soil water content in arid and semiarid area was investigated in this paper.
通过在黄土高原半干旱地区种植柳枝稷，构建生物量与土壤水分的动力学关系模型。
It is necessary to quantify the relationship between pixel color RGB value and soil water content for the application of dye infiltration.
建立像素颜色RGB值与土壤含水率之间的数学关系，是染色入渗法的应用基础。
The relations between soil water content and the root system formation of rice seedlings were studied with pot experiments.
采用盆栽试验，研究土壤水分与水稻秧苗根系形态建成的关系。
The simulating models about the change of soil water content under plastic mulch were established by analysing the changes of soil water balance after mulching.
通过分析地膜覆盖后土壤水分平衡的变化特点，建立了地膜覆盖前后农田土壤湿度变化的模拟方程。
The accuracy of soil water content measured by TDR depends on two key factors: soil dielectric constant and the calibration model of soil volumetric water content vs. dielectric constant.
时域反射仪测定土壤体积含水量的准确度取决于两个关键因素：土壤介电常数的测定准确度以及土壤含水量和介电常数之间的关系模型。
The result shows that the soil water content and evaporation amount of forest land has relations with winter rainfall, the forest growing state has relations with soil moisture state.
结果表明，林地的土壤含水量和蒸散量与冬季降水量相关，林木生长状况与土壤水分状况相关。
Droughtpractice sharply decreased critical saturation deficiency and plant humidity needed (PHN) which made the plant water content improved under the condition of the same soil moisture.
干旱锻炼能明显降低临界饱和亏和植株需水度，使植株含水量在相同的土壤水分条件下得到改善。
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。
Experimental study was performed to determine the moderate water deficit effect and physiological irrigation index of tobacco with lysimeters by controlling the lower limit of soil water content.
为确定烟草的适度亏水效应及烟草水分生理灌溉指标，进行了烟草蒸渗仪试验，通过控制土壤水分下限研究烟草的适度亏水效应。
The effect of water content of soil on determined results is discussed.
讨论了土壤含水量对测定结果的影响。
According to the feature of gravel-soil, the water content of sample is controlled by granule soil content and sampled under the same vertical pressure.
结合碎石土的特点，采用细粒土含量控制试样的含水量，在同一竖向压力下制样。
According to the feature of gravel-soil, the water content of sample is controlled by granule soil content and sampled under the same vertical pressure.
结合碎石土的特点，采用细粒土含量控制试样的含水量，在同一竖向压力下制样。
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