查询词典 soil

Results showed that high quality black tea was mainly produced in red soil, red yellow soil and intermountain alluvial terraces formed by fluvial outwash, with loose soil texture and high soil organic matter content.

分析表明，优质红茶产地主要是红壤、红黄壤和河流冲积形成的山间冲积台地，土壤质地疏松，有机质含量较高。

However, the key environmental factors for the topsoil (0-20cm) organic carbon lability were vegetation coverage, 20-30cm belowground biomass, 0-10cm,10-20cm and 20-30cm underground soil moisture, soil organic matter, soil labile Potassium and soil total Nitrogen content.

影响表层土壤活性有机碳含量最关键的环境因子是地上生物量、0~10cm地下生物量、30~40cm地下生物量、20~30cm土壤含水量、0~20cm土壤容重、20~40cm土壤容重和土壤全N量；影响表层土壤有机碳活度最关键的环境因子则是植被盖度、20~30cm地下生物量、0~10cm土壤含水量、10~20cm土壤含水量、20~30cm土壤含水量、土壤有机质、土壤速效K和土壤全N量。

On the basis of making it clear that laterization includes such three integrated stages as weathering, micro-granularity and soil formation of laterite, the thesis illuminates characteristics of Kunming laterite in chemical composition, physical mechanics, composition of granules, fractal dimension of granularity and the connection of granules. The experiment using soil reinforced agent to solidify the laterite shows that the mechanical traits of laterite have been improved because of its involvement, the best compact indicators and shear strength ones increased and the indicators of laterites penetrability and compression decreased. The effects of reinforcement can be weighed through its coefficient and the mechanism of reinforcement can find the explanation in the effect of soil reinforced agent on the laterite granules, the changes in the electric double layer caused by soil reinforced agent and its enwrapping of laterite granules.

在明确红土化作用包括风化作用、微团粒化作用以及红土成土作用三个完整阶段的基础上，阐明了昆明红土的化学组成特征、物理力学特征、颗粒组成特征、颗粒粒度分维特征以及颗粒连接特征；土壤强固剂加固红土试验表明，土壤强固剂的加入，改善了红土的力学特性，提高了红土的最佳击实指标和抗剪强度指标，减小了红土的渗透性指标和压缩性指标，其加固效果用加固效果系数来衡量，其加固机理可用土壤强固剂与红土颗粒之间的物理化学作用、土壤强固剂引起红土双电层的变化以及土壤强固剂对红土颗粒的包裹作用来解释。

However, not significant relationships were found between soil respiration and soil moistures at 5 cm depth in all study plots. Soil temperature and moisture together could explain changes in soil respiration of 75.2% and 93.7%, and 90.0% and 92.8% in litter exclusion and addition plots in the Liquidambar formosana and Cinnamomum camphora forests, respectively.

两种群落去除和添加凋落物土壤呼吸的季节变化均与5 cm土壤温度呈显著指数相关（P﹤0.001），与5 cm土壤湿度相关性不显著（P＞0.05）；土壤温度和湿度可以共同解释去除和添加凋落物后土壤呼吸变化的95.2%、93.7%和90.0%、92.8%。

Results showed that the content of available P increased in loamy soil by application of N and P under the content of soil water (11%～14%), and content of soil available P decreased with the depth of soil increase.

结果表明，在中壤质土壤含水量 11%～ 14%的情况下，不同N、P配比明显增加了土壤剖面中速效P的含量，但随着土壤深度的增加，土壤速效P呈不断下降的趋势。

Analyzed on the tunnels that used EPB method in different soils, the more logical three-dimensional finite element model is based, which can reality represented the soil transfiguration. 3 Due to the engineering example, a 3D FEM simulation model was founded. The model was used to study the rules of soil deformation and surface settlement during shield tunneling. 4 The characteristics of loess include the module, conglutination force and inner friction angle of the loess, affected the soil deformation. 5 The influence factors to the surface settlements such as the depth of soil, the outer diameter of the shield tunnel, the released stress at the cutting face, the fill ratio of the shield tail void, pouring-slurry press, thrusts and lengths of shield and digging steps were studied using the FEM method. References is brought forward in the loess areas of Xi'an was proposed.

通过对不同土质条件下盾构法进行地铁隧道施工的有限元分析，全面反映盾构推进对土体变形的影响情况； 3根据有关勘测资料，建立合理的盾构法施工三维非线性有限元模型，对盾构法施工引起的地层变位和地表位移情况进行计算，分析了盾构施工引起的地层变形规律和地面沉降规律； 4研究了黄土特性(地基模量、粘聚力和内摩擦角)对盾构法施工中土体变形的影响； 5利用三维有限元对盾构施工过程中影响地面沉降的因素(覆土厚度、隧道外径、开挖面压力变化量、注浆压力、盾尾空隙填充率、开挖步长、盾构机的长度和推进力等)进行研究，为今后西安地区地铁的建设提供参考。

So, LOM and CMI could more than total organic matter objectively reflect changes in soil fertility and soil quality, and should be used as indices to describe soil quality and assess soil management.

这些结果暗示LOM和CMI比总有机质更能客观反映土壤肥力和土壤质量的变化情况，应该成为描述土壤质量和评价土壤管理的良好指标。

Widely distributed throughout the city area of soil types for the cinnamon, in addition to grassland meadow soil, brown earth soil, swamp soil types and so on.

全市普遍分布的地带性土壤类型为褐土，此外还有草原草甸土、棕壤土、沼泽土等几种类型。

In this paper,the geographical distribution,profile shape and char- acteristics of major soil types such as the young brown earth,brown earth and meadow brown earth in the eastern low-mountain and hilly region and the meadow soil,saline meadow soil and paddy soil in the western plain region in Haicheng county of Liaoning Province are diseribed;the primary physico-chemical properties,organic matter,total nitrogen,total phosphorus,total potassium,total exchange of positive ions,the content of.01 physical cl...

本文叙述了海城县东部低山丘陵区的棕壤性土、棕壤、潮棕壤和西部平原区的草甸土、盐化草甸土及水稻土等主要土壤类型的地理分布、特性、剖面性态；论述了这些土壤类型的主要理化性质，有机质、全氮、全硷、全钾、阳离子代换量、。01物理性粘粒含量等及微量元素的含量、丰缺程度。根据主要土壤类型的性质和特点，作者提出了棕壤、草甸土两大土类的合理利用意见及其改良措施。

In this thesis, seed germination and root elongation test, early growth test were performanced by chemical spiked (Cu, Zn, Pb and Cd; Phenanthrenen, Pyrene; and1, 2, 4-trichlorobenzene) in four types of soils (red load soil, meadow brown soil, chestnut soil and dark brown soil) using wheat, Chinese cabbages , tomatoes , turnip and scallion as plants: The toxicity of heavy metals Cu.

本文选择4类典型土壤（红壤、草甸棕壤、暗棕壤和栗钙土），以（小麦、白菜、萝卜、西红柿、大葱）为供试植物，进行了重金属（Cu、Zn、Pb、Cd）、有机氯、多环芳烃污染的植物种子发芽与根伸长抑制试验；植物早期生长试验研究；以草甸棕壤为供试土壤，进行了重金属（Cu、Zn、Pb、Cd）单一、复合污染条件下的蚯蚓急性毒性实验；以草甸棕壤、污染土壤和生物修复土壤进行蚕豆根尖实验和土壤原生动物实验。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。