The problem of improved soil is important for high-speed railway subgrade.
改良土问题是高速铁路路基的重要内容。
The shear strength of the improved soil is reduced after drying-wetting cycle.
干湿循环作用后改良土的强度衰减得到减缓。
Results show that this measure is useful to increase strength of cement improved soil.
试验结果表明，这一措施对水泥土绝对强度的提高有一定程度的改善作用。
The cement improved soil is a kind of important fill material used widely in construction of railway subgrade.
水泥改良土是高速铁路路基工程中广泛使用的一种重要填料。
Besides, applying fertilizer improved soil microbial biomass c, however, divergence between NPK and Ntreatment is not marked.
施用肥料能提高土壤微生物量碳的含量，但NPK处理与N处理差异不大。
It also found strong environmental benefits such as improved soil fertility, better retention of water and resistance to drought.
研究还发现，有机农业还能带来极大的环境效益，比如提高土壤的肥力、更好地保持水土、防止干旱。
Single organic fertilizer, improved soil quality, but the nutrient supply for crops not in time, and resulting in lower production;
单施有机肥，土壤质量改善明显，但对作物养分供应不及时，造成产量较低；
Together with the improved soil a composite ground is formed, and the components and structure of the original -ground have been changed.
还可与被改良土层一起形成复合地基，改变原地基土的成分和结构。
Besides these, lime application improved soil phosphorus nutrition, which was one of the main causes that increased the yield of broad bean.
此外，施用石灰改善了供试土壤的磷营养，磷营养差异是蚕豆产量差异的主要原因之一。
The results obtained from the loading tests and the settlement observations show that the improved soil foundation can meet the engineering needs well.
通过载荷试验及沉降观测等成果分析，处理后的地基能够满足工程要求。
Therefore, land use conversion from cropland to shrub land or maybe grassland, contributed to SOC sequestration and improved soil nutrients stabilization.
因此，从耕地利用土地转换为灌木林地或草地也许，有助于改善土壤有机碳养分吸收和稳定。
The results indicated that green coverings improved soil physical characteristics, soil bulk density decreasing by 5.68% and the soil porosity increasing by 6.15%.
结果表明：生草可改善土壤物理性状，使土壤容重平均降低5.68%，总孔隙度提高6.15%。
The input of NPK as either organic manures or chemical fertilizers not only greatly improved soil productivity but also was of benefit to the soil as a carbon sink.
试验结果表明：以有机肥或以化肥形式配合施用NPK不但可以极大提高土壤生产力，而且有益于增加土壤有机碳储量。
Low eastern plains restoration of multi-district should increase the intensity of improved soil Suitable for the cultivation of crops to improve the productivity of land.
东部平原多级恢复力区应加大改良土质的力度，种植适宜的农作物，以提高土地生产力；
The authors also try to improve grain composition of soil by replacing cement soil with some sand to reduce influence of environmental change to strength of cement improved soil.
本文还通过在改良土中置换一定比例的砂土来改善土料的颗粒级配，以降低循环失水对水泥土强度的影响。
The nursery regularly (3-5 years) measured in the soil improved soil properties, soil water control, fertilizer and the pH value changes, provide the basis for scientific fertilization.
苗圃要定期(3 -5年一次)在土壤改良后测定土壤理化性质，掌握土壤的水、肥和pH值的变化情况，为科学施肥提供依据。
The weather may still be in the lap of the gods but the fecundity of the soil can now be improved by more down-to-earth means.
虽说现在天气仍有天神掌管，可是土地的肥沃程度却能通过一些实际的方式加以提高。
Hunger in Africa will be solved partly by helping farmers get the improved seeds, water pumps and soil nutrients they need for a good harvest.
向农民提供他们获得丰收所必需的良种，灌溉设备以及化肥可以部分地解决非洲的饥饿问题。
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。
The soil physical structure and the soil chemical properties in two restoring measurement are obviously improved.
不同恢复措施的土壤物理结构、土壤化学性质均获得明显的改善。
The improved planting pits developed by Sawadogo and other simple water-harvesting techniques have enabled more water to infiltrate the soil.
由Sawadogo开发的改良式种植地坑和其他简易集水技术使灌溉效率更高。
The soil bulk reduced, the soil porosity and permeability improved.
地块的土壤容重减少，提高土壤膨松度，增强土壤透气性。
It improved the soil granular structure in a short time, since high molecular compounds naturally degraded into organic matters.
同时，高分子经过自然降解转化为有机物质，可在较短时间内改善土壤结构。
The results showed that the integrated cultural practices not only raised the tree growth and the nut yield, but also increased the content of organic matter and improved the fertility of soil.
结果表明：组装配套栽培措施不仅可以促进树体生长和大幅度提高产量，同时也能提高土壤有机质含量和改善土壤肥力状况。
The reformed AHP improved and applied in the assessment of soil heavy metal pollution.
将层次分析法进行了必要的改进，并应用于土壤重金属污染的评价。
Through analyzing, conservation tillage did not cause the soil to harden etc, and can reduce the soil bulk density in various degree, improved the structure characteristic of the soil.
通过分析得出，施行保护性耕作后不会引起土壤板结等问题，而且能够不同程度的降低土壤容重，改善土壤的结构特性。
Only controlled the evaporation quantity in soil, that soil environment would be improved, the validity of soil would be boosted.
只有控制土体中的蒸发量，才能改善土壤生态环境，提高土壤利用的有效性。
To study the water-holding capacities of desert soil and the soil improved with coal ash and sewage sludge, experiments were designed to simulate rainfall and natural evaporation.
本文通过模拟降雨及降雨后自然条件下的土壤表面水分蒸发，研究了粉煤灰和城市污泥改良荒漠土壤对持水性能的影响。
The formed membrane improved heat energy status of the soil by restraining soil water to evaporate and absorbing more solar energy.
该膜抑制土壤水分蒸发，利于吸收较多的太阳能，从而改善土壤中的热状况。
The formed membrane improved heat energy status of the soil by restraining soil water to evaporate and absorbing more solar energy.
该膜抑制土壤水分蒸发，利于吸收较多的太阳能，从而改善土壤中的热状况。
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