查询词典 bulk density

The measurement of ponded water infiltration,saturated hydraulic conductivity,water holding capacity,soil bulk density of different treatments of PAM show,①the velocity of ponded water infiltration and saturated hydraulic conductivity are both reduced;②water holding capacity is improved but ...

结果发现，各种处理土样与对照相比，①积水入渗速率和饱和导水率值都有所降低。②各处理土样的蓄水能力增强，保水能力未见提高。③土壤容重有一定程度的降低。④以上各种趋势随PAM施用量的增大而增强。

In order to study the effects of water supply intensity, soil bulk density, initial soil moisture and soil texture on infiltration ponding time under the condition of non-sufficient water supply, and build mathematical relation on infiltration ponding time and each factor, infiltration experiments with eight kinds of homogenized soils under non-sufficient water supply condition were conducted indoors.

为了研究供水强度、土壤容重、初始含水率、土壤质地等因素对非充分供水入渗积水时间的影响，建立入渗积水时间与单一因素的数学关系，在室内进行了8种均质土壤的非充分供水入渗试验。

The results showed that ABA concentration in xylem sap in the drying plants was quintupling of that in witting plants,and became duplicate with 0.12 g·cm-3 increament of soil bulk density.

生长在混合容重(一边为1.20g·cm-3，另一边为1.45g·cm-3)土壤上的植株中，ABA浓度和气孔导度与全部根系处在高容重土壤中的植株接近。

Experiments of bioremediation and control were conducted with the alkali meadow grass planted in saline soil for 3 years. Contrasted with control group, topsoil desalination rate was up to 77.00%; pH value decreased 0.25 pH unit; soil bulk density decreased 0.14 g/m^3; total porosity increased by 5.29%; soil aggregate structure increased by 23.14%; soil water content increased 70.30 g/kg; average triennial alkali grass yield was 36000 kg/hm^2. In addition, planting forage in saline soil as a medium and establishing a compound agro-forestry-animal system promoted the sound combination of planting industry, forestry, and livestock husbandry. Because of the reasons, utilization ratio of land reached more than 184.00%; the income of land increased from 16300 to 35500 yuan/hm^2 average income per farmer in the controlling region increased by 66.00%, from 2160.70 to 1300.80 yuan.

生物修复与调控试验研究表明，草甸盐土经种植碱茅草3a，耕层土壤与对照相比脱盐率达77.00%，pH值下降了0.25个单位，容重降低0.14g/立方公尺，总孔隙度增加5.29%，团粒结构增加了23.14%，自然含水量增加70.30g/kg.3年生碱茅草平均产草量36000 kg/hm^2；盐化耕地采用以种植牧草为中介，将种植业与农区林业、畜牧业有机结合成互相依存，互相促进的农林牧复合生物系统治理后，土地利用率可达184.00%以上，可获得16300~35500元／hm^2的经济收入，治理区农户人均纯收入由1300.80元增加到2160.70元，增加了66.00%。

In the process for producing ammonium molybdate on particle size, bulk density, crystal shape and structureal components of ammonium molybdate.

研究了钼酸铵生产中的原始溶液密度、搅拌转数、反应温度、终点 p H值等因素对钼酸铵产品的粒径、松装密度、晶体形貌和结构成分的影响，选择了最佳工艺条件，介绍了实践情况。

In order to study on the most suitable harvest time of summer corn variety in the west of Henan, this experiment took Zhengdan 958, xundan 20 and Luoyu 4 as the materials, and studied on grain length, the length of milk line, bulk density,1000-grain weight and yield effect through choosing different harvest time, the result showed that timely harvest later had the obvious effect on production increase .

本试验以郑单958、浚单20和洛玉4号为材料，通过对不同收获期夏玉籽粒长、乳线长、含水量、容重、千粒重及其产量效应进行研究。结果表明：玉米适时晚收具有明显的增产效果。

The physical characteristics of water in the soil included soil bulk density, MWHC, capillary water holding capacity and least water holding capacity were also measured by soaking and discharging experiments with samples of soil from different soil depths in all studied communities.

通过对苔藓、枯落物和土壤的野外调查与室内实验，分析了川西高山和亚高山3种主要灌丛在不同海拔梯度的地被物及土壤持水性能，其有利于加深对长江上游高山和亚高山区灌丛水文效应的认识。

The Correlation between enzyme activities and physical properties of spruce forests soil The acid phosphatase was conducive to the increase of natural capacity, capillary capacity, saturated water capacity, non-capillary capacity, total porosity, non-capillary porosity, and the decrease of bulk density; the catalase and proteinase were conducive to the increase of capillary porosity and water porosity, respectively, these results suggested that catalyze function of soil enzyme directly acted the formation of soil physical structures.

土壤酶活性与土壤物理性质的相关性酸性磷酸酶活性的增强，有助于土壤自然含水量、毛管水含量、饱和水含量、非毛管水含量、总孔隙、非毛管孔隙的增加及容重的减小；过氧化氢酶和蛋白酶活性的增强分别有助于毛管孔隙和水占孔隙的增加。

The effects of addition of copper-coated carbon fiber on the bulk density, porosity and bending strength were studied.

研究镀铜碳纤维添加量对NiFe2O4复合陶瓷惰性阳极体积密度、气孔率和抗弯强度的影响。

Statistical analysis shows that bulk density, saturated hydraulic conductivity, and dust on road surface have significant effects on runoff and soil loss. Stone cover may increase surface runoff, but vegetation cover is very effective in erosion control and runoff reduction.

土质道路的容重和路面浮土与径流系数和土壤流失量呈显著正相关，饱和导水率则呈显著负相关；路面杂草能显著减少径流，防治路面侵蚀。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。