silt content 中文意思是什麼
silt content
解釋
粉沙含量-
The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno
研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。 -
According to rock and mineral analysis, the formation consists dominantly of detrital feldspathic fine - sandstone with medium and silt sandstone secondly. lithologically, the content quartz is lower than those of feldspar and detritus, and the cement is dominated by clay, which gives the feature of low compositional maturity and low textural maturity
館上段儲層巖性以巖屑質長石細砂巖為主，其次為中細砂巖和粉砂巖，巖石中石英含量低，而長石、巖屑含量高，膠結物以泥質為主，表現出低成分成熟度和低結構成熟度的特點。 -
2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure
龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重，減少土壤砂粒含量，增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比，以及增加粉粒含量，從而降低土壤分散度，提高土壤團聚性，增加土壤團粒結構數量，改善土壤的透水性，促進良好土壤結構的形成，最終提高土壤的蓄水保肥性能，增強土壤的抗蝕性和抗沖性。 -
The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。 -
Based on the principle of significant effect of soil fertility factors on forest growth, soil physical factors ( natural water content, bulk density, total porosity, capillary porosity, aggregate degree, coarse silt and physical clay ), chemical factors ( om. total n, alkali - hytrolyzable n, total p, humus and ha / fa ) and biological factors ( urease, acidphosphotase, invertase and microbes ) were selected as evaluation index system of soil fertility. applying principal component analysis, soil ifi of subalpine coniferous forest was calculated
從土壤物理、化學、生物學三方面出發，建立了川西亞高山針葉林不同演替階段土壤肥力評價指標體系，應用主成分分析，計算出不同演替階段土壤肥力綜合指標值（ ifi ） ，各演替階段大小順序為： 10年生雲杉林地跡地原始林地次生樺木林地30年生雲杉林地20年生雲杉林地50年生雲杉林地60年生雲杉林地40年生雲杉林地。 -
The organic matter, total n, hydrolytic n were increased, then reduced with the increase of abandoned time. the loss of organic c got up to 59. 4 % in abandoned land. in 0 - 20cm, the sand content of 0. 25 - 0. 05mm was increased gradually, the average content of sand in the abandoned land was up to 76. 84 %, the sand contents of silt and sand was gradually reduced, the soil mechanic compose became coarse
隨撂荒年限的增加，土壤有機質、全氮、堿解氮等主要養分均表現出先降低后增加的趨勢；撂荒地有機碳的損失平均達到59 . 4 ；在撂荒地表面0 - 20cm范圍內， 0 . 25 - 0 . 05mm粒徑的砂粒含量逐漸增加，各撂荒地砂粒平均含量達76 . 84 ，粉粒和粘粒含量逐漸降低，土壤機械組成出現粗化現象。 -
With increase of artificial forest age, the content of soil organic matter decreased sharply. and soil physical, chemical and biological properties of forest became worsen. from soil physical properties analysis, soil silt, clay, physical clay, aggregate degree and structure coefficient in topsoil increased with increase of artificial forest age and soil sand deceased
在土壤物理性質方面，隨著人工雲杉林齡的增加，土壤表層粉粒、粘粒、物理性粘粒、團聚度和結構系數降低，砂粒含量增高，土壤飽和持水量、毛管持水量及總孔隙和毛管孔隙在人工雲杉演替過程中表現出「 u 」型變化。 -
And it should be ascribed to silt according to the view of its mineral composition, particles distribution, physical and mechanical indices. not only is the content of cla > relatively high, but also the exchange capacity of ion, chiefly high - electronvalent calcareous ion, is great. due to aggregations filled with pore among inter - particles, the soil has the engineering properties of silty clay
從其礦物成分、顆分試驗及物理力學指標來看，它應歸屬于粉土，但由於土中的粘粒含量較高，且粒間充填集聚體，土的離子交換容量較大，交換陽離子以高價鈣離子為主，故其仍表現出粉質粘土的工程特性。 -
The concentrations of copper, lead and zinc in the shoot of e. splendens were affected by chemical and physical properties, such as full contents of heavy metals in soils, soil ph and organic carbon content, etc. the shoot can accumulate copper more on the red sandy paddy soil collected from dongxiang country, jiangxi province, than on silt paddy soil from fuyang country, zhejiang province. e. splendens took up much less copper from fuyang soils, the concentrations of zinc and lead in shoot were not also quite low
在酸性紅砂土上植物對銅的吸收和富集隨土壤銅含量的增加而顯著升高；而在銅、鋅、鉛復合污染的中性泥沙土上海州香薷體內銅含量和積累量不高，處于正常植物生長范圍內，植物體內鋅、鉛含量及其積累量也不高，海州香薷對重金屬的吸收和富集能力有限。 -
4. in the process of spontaneous vegetation recovery of blown sand soil, coarse sands ( l - 0. 25mm ) content gradually lower, middle sands ( 0. 25 - 0. 05mm ) and fine sands ( 0. 05 - 0. 02mm ), silt, clay content gradually higher in mechanical composition
4 、在自然植被恢復過程中，風沙土機械組成中砂粒含量變化表現為粗砂含量的降低，中砂和細砂含量的升高，砂粒整體含量降低。 -
Secondly, in combination with basic physical experimentation of the henan item “ study on embankment settlement mechanism and development rule for highway in the silt soil region ”, the mechanics speciality of silty soil is completely cognized and realized, through the laboratory experimentation of three kind of classical silty soil in puyang city. the experimentation include laboratory physical mechanism test, static compaction test, direct shear test, permeability test. and also analysis the influence of water content on soil ’ s shear strength, permeability and other mechanism character
其次，結合河南項目「粉砂土地區高速公路路基沉降機理及其發展規律研究」課題的基本物理試驗部分，通過對濮陽市三種典型的粉質土的室內物性力學性質試驗、標準擊實試驗、直接剪切試驗、滲透試驗等一系列試驗研究，對粉質土的各力學特性進行全面系統的認識和了解，分析了含水量對粉質土的抗剪強度、滲透性等力學性質的影響。 -
For silt, the relationship between the strength of stabilized soils with various cement contents and the cement content was investigated experimentally, and the formula of cement contents for wrapping soil particle and filling pore during the structural formation of the stabilized soil was derived
摘要以粉砂土為研究對象，對水泥土抗壓強度與水泥含量關系進行了試驗研究，推導了水泥土結構形成過程中水泥漿包裹土顆粒和填充孔隙所分別對應水泥量的理論計算公式。 -
How to calculate section average silt content with adcp measuring
測流條件下斷面平均含沙量計算 -
( 2 ) quantitively studied the solidification effect of different organic matter content silt, make clear the relationship of organic matter content and solidification effect
（ 2 ）定量的研究有機質含量不同的淤泥固化效果，明確了有機質含量與淤泥固化效果之間的關系。 -
Among dredged sediments, quite a portion come from polluted lakes and rivers, because such polluted sediments usually contain some organic matters. although the content of organic matters are much less than silt, but it seriously affected silt solidification effect, and this is a new subject in silt solidification research
固化技術是疏浚淤泥資源化利用的一個重要途徑，但是在疏浚淤泥當中，有相當一部分淤泥來自污染嚴重湖泊、河道，這些污染嚴重的淤泥當中含有一定量的有機質，這些有機質會對固化效果產生較大的影響。 -
( 4 ) as to different organic silt, make use of cement - gypsum compound material as solidification additives for silt solidification, comparatively studied the solidification effect, summarized the improving rule of gypsum to cement and proposed a method for treating high organic matter content silt
（ 4 ）對不同有機質淤泥，採用水泥?石膏進復合型固化材料進行固化，對固化效果進行了對比研究，對石膏促進固化效果的規律進行了總結，從而提出了大量發生的有機質含量偏高的疏浚淤泥固化問題。 -
The main works of this paper are as follows : ( 1 ) studied two different organic content silt wuxi wulihu silt and shenzhen dayawan silt through single material ( cement ) solidification experiments. compared the solidification effect of the two silt, through the experiments conferred that organic matter remarkable affect cement solidification effect
本文的主要工作如下： （ 1 ）對于有機質含量明顯不同的無錫五里湖淤泥與深圳大亞灣淤泥進行了單一水泥的固化試驗，對固化效果進行了比較，指出有機質會對淤泥的固化有效有顯著的影響。 -
In this paper, the influence of organic matter content on silt solidification effect was focused on. through laboratory experiments, studied the influence causing and degree of organic matter affect silt solidification. disclosed the relationship of organic matter content and solidification effect, and proposed a method for high organic silt disposing
本文首先通過室內試驗研究有機質對淤泥固化效果的影響，建立有機質含量和固化效果之間的定量關系，初步揭示了有機質含量對淤泥固化效果影響的機理，並通過採用復合型固化材料技術進一步解決了有機質含量較高的疏浚淤泥應當如何固化的問題。 -
On the basis of vibratory compaction test using silt, which is difficult to compaction and cement - stabilized soil, which is the most conventional semi - rigid material, the influence regularity of vibratory parameters such as amplitude, frequency, centrifugal force, intensity of pressure, time of vibratory and material factors such as water content is studied
研究了靜面壓力、激振力、頻率、振幅、振動時間等振動壓實參數以及含水量等材料因素對振動壓實效果的影響規律。根據各參數對振動壓實效果的影響規律，找出一套壓實效果好並且和現有振動壓路機的技術參數基本相符的振動參數，在此基礎上提出擬定道路材料振動壓實的試驗方法的參考意見。
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