成土作用

基本解释 (translations)

pedogenesis

与成土作用相关的网络例句 [注：此内容来源于网络，仅供参考]

Thirdly, Lower-grade plants such as lichen, bryozoan etc. begin to grow. Along with the accumulation of living beings is going more and more, the amount of organic matter in the parent material forming soil is going more and more, Then higher-grade plants gradually replace lower-grade plants, and through strong and extensive root system, the dispersive and soluble nutrition can be concentrated. After the death of organisms, and through decomposition of microbes, one part of the remains of the organisms becomes nutrients for plants, and another part of the remains turns into humus.

第三步，地衣、苔藓类低等植物开始生长，随着生物的积累作用越来越大，成土母质中的有机物数量不断增加，最后高等植物逐渐取代了低等植物，通过强大的根系把分散的可溶性养分集中起来，等到这些生物死亡之后，它们的残体经过微生物的分解作用，一部分成为后来植物所需的养分，另一部分变成了腐殖质。

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。

The magnetic susceptibility and maghemite content of surface soil can reflect process of pedogenesis.

表土的磁化率值和磁赤铁矿含量都反映了成土作用的强弱。

It is suggested that TDS can be used as a new method for the analysis of pedogenesis and climatic change.

总之，热处理过程中磁化率的变化能非常灵敏地反映磁性矿物的转化情况，而且，这种转化往往与样品所经历的土壤化作用强度密切相关，因此，TDS可做为分析成土作用强度和古气候变化的一种新方法。

This is not surprising, given the closer proximity of Pengyang to the Asian inland dust sources; The average content of calcium carbonateis of Pengyang section is not only higher than that of central loess plateau, but also higher the west of Chinese Loess Plateau, which reflected Pengyang loess had been deposited by near Liupanshan\'s substances that contained more calcium carbonateis; The content of diffluent element of 10m depth in the section increased fast, which indicated that the modern eluviation and the leaching depth of loess may be stronger than our guess; The soil growth index can reflect the intensity of soil forming and the climatic changes; The "abrupt chang" of glacial and interglacial period was caused by strong soil-forming processes that enlarged the discrepancy of granularity between loess and paleosol. However, the magnetic susceptibility nearly cannot reflect the existence of S_8 and the magnetic susceptibility of S_7 is highest in the whole section, which is inconsistent with other studies that S_5 has the highest magnetic susceptibility.Thin-section examination shows that the micro-texture of the soil layers is divided into both cementing texture in S_7, S_5 and S_1, and granular texture in all others.

与其它剖面相比，彭阳剖面粒度总体上要比东部的洛川、西安，甚至西部的兰州、新疆东湾要粗；CaCO_3平均含量不仅高于黄土高原中部，也高于高原西部，反映出本剖面富含碳酸盐的六盘山近源沉积起到了很重要的作用；易溶元素含量在剖面10m处快速升高，淀积特征明显，反映出黄土受现代淋溶成土作用影响较大，黄土直立、疏松、多孔特性和高温与多雨组合的气候特点，使得元素淋溶、淀积的强度和深度超出了传统的认识和判断；烧失量与其它指标相比，不仅能区分冰期、间冰期；而且能够区分出次一级的冰阶、间冰阶，有较高的分辨率；土壤发育指数、红度能够反映土壤强度差异，是反映气候波动的较好指标；然而，磁化率不能反映古土壤S_8的存在，且S_7的磁化率在全剖面中最高，这与大多剖面S_5磁化率最高的特点不一致。4。

The time of the pedogenic process was in the last ice age, therefore this area was colder and drier in climate and lower in sea level than today. The main chemical process in the soil was oxidation, a period of the formation of oxide minerals such as limonite. With the deposition and covering of the marine facies layer in the postglacial period, the soil turned into diagenetic process. Consequently the chemical process in the soil was dominated by reduction and this process was the main development period for nodules of iron-manganese carbonate to form.

成土期处于末次冰期低海面、气候寒冷干燥期，土壤的化学过程是以氧化作用为主，是褐铁矿等氧化性矿物形成时期；冰后期海相层的沉积覆盖使土壤层进入成者阶段，土壤层的化学过程以还原作用为主，成岩过程是铁锰碳酸盆结核的主要生成期。

There are three effects that may be important in producing this trend. First, lowtemperature oxidation preferentially affects the finer single-domain magnetites responsible for the Hopkinson peak, which is therefore suppressed in the more oxidized loams. Second, the possible production of uniaxial magnetite with shape anisotropy can also lead to a relatively muted Hopkinson peak. There is, additionally, a third alternative, and the one preferred here, that the natural alteration processes involved in pedogenic susceptibility enhancement have probably depleted the supply of ironbearing precursor phases, so that less new magnetite is formed on heating.

产生这种特殊热磁性质的可能原因如下：第一，成土过程中的低温氧化作用减弱了磁铁矿的Hopkinson效应；第二，可能是成土过程中生成的一向延长的针状磁铁矿颗粒表现出较弱的Hopkinson效应；第三，随着成土作用增强，现代黄土、黑垆土中的硅酸盐、粘土矿物因受土壤化作用分解而越来越少，加热过程中分解产生的磁铁矿造成的磁化率增强相对于其初始磁化率也就越来越小，从而产生越来越弱的Hopkinson/alteration峰，本文认为这是最主要的原因。

The geochemical characteristics and behavior of rare earth elements in soils developed on the basalts in the northern part of Hainan Island erupted in different time were studied as well as the REE partition in the soil formation process and its implication on soil development degree.

研究了海南岛北部不同时期喷发的玄武岩上发育土壤中稀土元素的地球化学特征和行为，探讨成土过程中稀土元素的分异及其对土壤发育程度的指示作用。

Podozolization and gleying are two distinctive soil forming processes under different environment conditions.

灰化作用和潜育作用是两种在不同环境下显著区别的成土作用。

This has an important meaning to the industrial manufacture.DSC, WAXD and polarizing microscope with hot stage experiments were performed to describe what led the SSP rate acceleration of PET/MMT. It was shown that montmorillonite acted as a very good nucleating agent in PET crystallization process, which results in the lower crystallinity, more small microlites, and more surfaces of microlites.

为研究PET／MMT固相缩聚效率提高的原因，通过热台偏光显微镜、DSC、X-射线衍射等手段对样品的结晶进行观察与分析研究，结果表明蒙脱土对PET的结晶有明显的成核作用，使其晶核生成速率迅速提高，晶核数量明显增多，从而使整个结晶过程的时间变短，同时形成了更多结构不完善的微晶体。

与成土作用相关的网络解释 [注：此内容来源于网络，仅供参考]

calcification：化作用

钙化作用(calcification)与上述脱钙作用相反. 在干燥地区,因雨水不足以淋溶可溶性矿物,如碳酸钙等,故会在土壤中产生钙质的积聚作用. 分层作用(horizonation)为经由各种成土作用,渐渐会形成几个与地面平行的土壤分层的作用.

soil genesis：土壤发生

soil former 成土因素 | soil genesis 土壤发生 | soil granulation 土壤团粒形成作用

soil genesis：土壤化育作用

soil forming process 成土過程 | soil genesis 土壤化育作用 | soil genus 土屬

latitudinal zonation：緯度性成帶現象

lateritic soil 磚紅化土 | latitudinal zonation 緯度性成帶現象 | latosolization 磚紅化作用

pedodontist：儿童牙科医生

pedodontics /儿童牙科学/ | pedodontist /儿童牙科医生/ | pedogenesis /成土作用/土壤发生/

steppe soil：草原土,草原土壤

steppe plant 草原植物 | steppe soil 草原土,草原土壤 | steppe type of soil formation 草原成土作用

urease：尿素分解酵素

(二)被水解成碳酸铵: 尿素在土壤中会受微生物群分泌的尿素分解酵素(Urease)的催化,水解成 碳酸铵(参考式 1),此即尿素的铵化作用. 尿素的铵化作用速率和土壤质地,土壤肥沃度,土壤酸碱度,土壤水分,土 壤温度有关,

soil ulmin：土壤腐植质

成土作用 soil-forming processes | 土壤腐植质 soil-ulmin | 日辐射常数 solar constant