查询词典 soil

Results showed that both soil salt accumulation and acidulation in topsoil were evident and the amounts of main soil nutrients are increased.

结果表明，随着连作年限的增加，温室土壤盐分表聚和酸化现象明显，土壤主要养分含量有增加的趋势。

The stem flow of spruce and larch had acidulation on the soil, but the soil around the bole of spruce didn't present intensive acidity (the lowest pH of water and KCl immersion were 5.13 and 4.79, respectively), so the acidulation of stem flow is not the direct reason of spruce death.

虽然两树种树干径流对土壤均产生了酸化作用，但由于云杉树干周围土壤PH并没有出现较强的酸性（水浸pH下降到5.13，盐浸pH下降到4.79），因此，还不能认为云杉的衰退死亡与树干径流的酸化作用有直接关系。

The effects of acetochlor on the population of soil microbe and the growth of bacteria,actinomyces and funguses in soil were studied.

研究了乙草胺在 6种不同浓度下对土壤微生物种群数量及土壤中细菌、放线菌、真菌生长速率的影响。

The amount of soil actinomycosis decreased (P 0.05) under elevated CO2 in the nonrhizosphere soil of P.

大气CO2浓度升高对红松幼苗非根际土壤放线菌数量具有抑制作用(p 0.05)，而对长白赤松幼苗土壤放线菌数量没有明显的影响。

Through experiments explore the growth of wheat in the course of soil actinomycosis role. The results showed that: soil actinomycosis can be beneficial for the wheat absorption nutrients, increasing the resistance of wheat, most of actinomycosis useful for plant growth.

本课题通过实验探究土壤中的放线菌在小麦生长过程中的作用，结果表明：土壤中放线菌可以有利小麦对营养物质的吸收，增加小麦的抗性，大部分放线菌对植物生长有益。

To insure the safety and stabilization of freeway build in swelling soil area, we discussed soil property, optimum water content, compactness control, drying-wetting cycle action and control of differential settlement and so on. And brought out corresponding treatments for different situations.

为保证在膨胀土地区修建高速公路的安全稳定，主要从土的性质、最佳含水量与压实度控制、干湿循环作用的影响以及路堤不均匀沉降的控制等因素进行探讨，并针对不同情况分别提出相应的处理措施。

Soil erosion is one of the most important ecological environment problems in our country, which results in land resource destroy, soil degradation, land productivity decrease, water pollution, river and water storage works aggradation, flood, avalanche, mudrock flow and menace to the life and wealth of people, and so on.

土壤侵蚀问题是目前我国面临的主要生态环境问题之一，严重的水土流失不仅破坏土地资源、降低土壤肥力、制约粮食生产增长，还污染水环境、淤积河道和蓄水工程，导致洪水、崩塌和泥石流等灾害频繁发生、威胁人民的生命财产等。

Proper shrubbery – Tamarix ramosissima was taken as the research subject, Through the observation of upper organic matter aggradation and the research of underground annual changes of soil organic carbon. Make sure the accumulations of soil organic carbon and the carbon cumulation under the Tamarix,The results indicate that: 1）Based on one year's observation,We found that,the formation of annual layer depending on the dynamic balance between hearty growth of Tamarix and reposeful accumulated environment.

本研究选择干旱区特征性灌木植物——柽柳为研究对象，通过对柽柳冠下地表有机质沉积的观测以及地下土壤有机碳含量年际变化的研究，查明柽柳冠下土壤有机碳的积累情况及其碳蓄积作用，并探讨柽柳在全球气候变化和碳循环中的作用及贡献，为进一步研究干旱区碳循环及其碳汇功能提供基础数据。

1Sandy soil with some humus under Litchi chinensis Sonn, Euphoria longana Steud,Aglaia odorata Lour, bamboo and under Ficus retusa Linn.;(2) soil beneath moss undertrees or in shady places.

在过于潮湿和腐植质过多，地面较硬和完全向阳的场所都未发现该虫孳生。土壤分层检查结果看来，孳生主要在地面下一厘米范围内。

The work here will make on further understand of the study of mechanisms and motion models of water-heat exchange, and will be of great value of research on the consideration of problems related to hydrology, soil corrosion, water and soil conservation, agrology, agricultural irrigation, and so on.

该研究为土壤中水热交换机制和运动模型的进一步的研究提供参考，对水文学、土壤侵蚀和水土保持、土壤学、农业灌溉等相关问题的研究有着一定参考价值

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。