1)soil compaction土壤紧实度
1.Effects of soil compaction on the chlorophyll fluorescence parameters and growth of Malus hupehensis seedling;土壤紧实度对平邑甜茶幼苗生长及叶绿素荧光参数的影响
2.Effects of soil compaction on grain yield and quality of wheat;土壤紧实度变化对小麦籽粒产量和品质的影响
3.The results showed that the increase of soil compaction depressed plant height of cucumber seedling significantly after planting 15 days;the width and length of the forth leaf after fix planting 9～17 days increased;stem thickness of plants,biological yield,economic yield,economic coefficient and total absorptive capacity of .6 g/cm3的土壤进行盆栽试验,研究了土壤紧实度对黄瓜生长、产量及养分吸收的影响。
英文短句/例句
1.Effect of Soil Compactness on Growth and Physiological Characteristics of Ginger;土壤紧实度对生姜生长及生理特性的影响
2.The Effect of Soil Compaction on Root Growth and Root Activity of Malus prunifolia Seedlings土壤紧实度对楸子幼苗根系生长及活力的影响
3.Effect of soil compaction on root characters and nitrogen metabolism of potted seedlings of Pingyitiancha (Malus hupehensis)不同土壤紧实度对平邑甜茶根系特征及氮代谢的影响
4.Spatial-temporal variability of soil hardness and effect of soil hardness on other soil properties in rotary tillage in Guanzhong farmland关中地区耕作方法与土壤紧实度时空变异及其效应分析
5.Effects of Soil Compaction on Photosynthetic Parameters and Water Use Efficiency of Malus hupehensis Seedling土壤紧实度对甜茶幼苗光合参数和水分利用率的影响
6.Soil compaction may limit horizontal root extension.土壤的紧密度能限制水平根的扩展。
7.Soil water evaporation and its maths simulation under compaction stress condition紧实胁迫条件下土壤水分的蒸发及数学模拟
8.soil consistence土壤结持度, 土壤稠性
9.The soil contracts upon drying.土壤会由于变干而紧缩。
10.Vibratory Acceleration and Soil's Compaction Status Connection Analysis振动加速度与土壤压实状况关系分析
11.Their roots hold the soil tightly together.这些植被的根茎能将土壤紧紧地抓住，
12.EXPERIMENTAL INVESTIGATION ON SOIL TEMPERATURE RESTORATIVE CHARACTERISTICS FOR SOIL SOURCE HEAT PUMP IN INTERMITTENT COOLING OPERATION土壤源热泵制冷间歇工况土壤温度响应实验研究
13.Effects of soil compaction stress on photosynthesis,chlorophyll fluorescence parameters of cucumber (Cucumis sativus L.) leaves土壤紧实胁迫对黄瓜叶片光合作用及叶绿素荧光参数的影响
14.The Embedded Long-range Monitoring System for Edaphic Temperature and Humidity in Forest森林土壤温湿度嵌入式远程实时监测系统
15.(used of soil) compact and fine-grained.（用来指土壤）紧密而且颗粒细微。
16.Comparative Experiment of Finger Flow of Homogeneous Soil and Layered Soil均质土壤及层状土壤的指流对比实验
17.compactness, compactedness紧密性,紧密度,密实度,充实度
18.Measure sediment temperature at intervals of 5 m by inserting the soil thermometer into the sediment.沿样条每隔5米用土壤温度计量度土壤温度。
相关短句/例句
soil compactness土壤紧实度
1.Effects of soil compactness on ginger plant senescence.;土壤紧实度对生姜植株衰老的影响
2.Responses of root activity and leaf photosynthesis to soil compactness stress were studied in cucumber plants grown in pots.结果表明:当土壤紧实度增大时,黄瓜根系重量减小,活力下降。
3.Pot experiments were condueted on both sandy and clay soils treated with different bulk densities to investigate the effect of soil compactness on cotton (G.３ｇ／ｃｍ３是棉花形成高生物学产量、较高经济系数，从而达到最高经济产量的理想土壤紧实
3)Soil compaction土壤紧实
1.Effects of soil compaction stress on photosynthesis,chlorophyll fluorescence parameters of cucumber (Cucumis sativus L.) leaves土壤紧实胁迫对黄瓜叶片光合作用及叶绿素荧光参数的影响
4)compactness layer土壤紧实层
5)Soil compaction土壤压实度
1.The MASW method used in soil compaction study;多道面波分析方法在测量土壤压实度方面的应用研究
2.A real-time measuring system of soil compaction;车载行进式农田土壤压实度实时测量系统
3.Soil compaction is a natural phenomenon which causes atmosphere and water to be not able to flow freely in soil because of the losing of pores among soil granules.本文旨在寻找测量土壤压实度的新方法。
6)soil density土壤坚实度
1.The soil density and humidity before and after the bed-irrigation sowing changed knowing from analyzing the data of them.通过对施水前后土壤坚实度与土壤含水率测试数据分析,表明用本播种机施水后可改变土壤坚实度与含水率。
2.The soil density and humidity before and after the bed-irrigating sowing changed knowing from analyzing the Data of them.通过对施水前后土壤坚实度与土壤含水率测试数据分析,结果显示,施水后改变了土壤坚实度与含水率。
延伸阅读
土壤水力传导度土壤水力传导度hydraulic conductivity of soil 土壤水力传导度的测定方法较多，饱和土壤的渗透系数常用达西试验装置测定。非饱和土壤水力传导度常用垂直土柱入渗法，水平短土柱法，瞬时剖面法等方法测定。但这些方法均假设土壤各向同性，故在田间运用中有一定的局限性。turang shull.chuandaodu土壤水力传导度(hydraulie eonduetivityof 5011)单位水力梯度下，土壤水流通量。其量纲为〔L尹‘〕，常用厘米/秒或米/日表示，亦称导水率，是分析土壤中水流运动的重要参数。 根据达西定律，一维垂直土壤水流运动方程为: ~，‘口功一一八戈胡— d之式中q为土壤水的通量;z为垂直坐标;0为土壤体积含水率;K(a)为土壤水力传导度，当土壤为非饱和时，为e的函数;当土壤饱和时，是与土壤含水率无关的常数，记作凡功为土壤的总水势，包括重力势和基质势两部分，即当之向下为正时: 梦一功m一之式中砂。为基质势。 在土壤处于饱和状态时，土壤水力传导度常称为渗透系数。由于土壤饱和时，所有孔隙都充满了水，且都可以导水，所以土壤的水力传导度最高。在非饱和土壤中，有些孔隙是充气的，土壤的横断面上导水孔隙减少，水力传导度降低。同时，在吸力增加时，最先排出的是大孔隙中的水分，其余土壤水分在较小孔隙中流动，而水在孔隙中流动的速度又是随孔径的减小而减小，因此，非饱和土壤水力传导度也随之降低。另外，当大孔隙中水排出后，它就成为水流流向相邻孔隙的障碍，这也是非饱和土壤水力传导度降低的一个原因。由于上述缘由，土壤水从饱和过渡到非饱和时，土壤水力传导度将急剧降低。当吸力从零增加到0.1兆帕(l巴)时，土壤水力传导度可以降低几个数量级(有时降低到饱和时数值的1/100000)。 土壤水力传导度与含水率或吸力有密切关系，以一个非饱和的水平土柱为例，当水流在吸力作用下流动时，若土柱两端的吸力水头保持恒定，则水通量是稳定的。若土柱很短，使两个观测点的距离较小，可计算出土样的某一平均吸力时的平均水力传导度(即 △X_，_，、，:.~一~__、.___、__.。。.___K-Q巍之。其中“肋水平距离，么瓜为两观测点的吸力差)。 在同一平均吸力时，通量与吸力梯度成正比。可是，通量和吸力梯度关系直线的斜率随不同的平均吸力而变(见图1)。在饱和土壤中则相反，土壤水力传导度一般不随水势或压力的数值而变。 不同质地土壤水力传导度与吸力的关系如图2所示。图2表明，虽然沙质土在非饱和时水力传导度Ksl高于粘质土饱和时的水力传导度K。2。
