黃土化作用 的英文怎麼說

中文拼音 [huángtǔhuàzuòyòng]
黃土化作用 英文
loessification
  • 黃 : Ⅰ形容詞（像絲瓜花或向日葵花的顏色） yellow Ⅱ名詞1 （指黃河）short for the huanghe river:黃泛區the...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 黃土 : [地質學] loess黃土保持 loess conservation; 黃土地 loessland; 黃土地基 loess foundation; 黃土地貌 ...
  1. Taking loess cave dwelling of yan an area as represen t area ， the annual temperature wave inside the cave dwelling are solved under t he annual temperature wave of outside disturbance in yanan furthermore ， by comparing with that of bungalows ， the characteristics that warm in winter and cool in summer in cave dwelling are illustrated in quantity

    以延安地區黃土窯洞為模型，以當地的室外年溫度波為外擾，用反應系數法求解和分析了窯洞室內的年溫度變化;並與相同空間結構，相同外擾作用下的平房作了分析比較，定量的說明了窯洞與平房相比具有冬暖夏涼的優點。
  2. Strip - shape underground structures such as the tunnels and tubes for various uses can be treated as a beam on elastic foundation under earthquake condition ， although there exists soil - structure interaction ， the foundation soil vibration is dominant in other words ， analysis of earthquake response of the soil is essential to this end ， simplified models ， ( i. e equivalent mass system models based on some equivalence criteria ) are proposed ， instead of a general 3 - d continuum model in this study ， equivalence criteria are proposed and the simplified models are compared the single - mass - string model is proved to be valid and therefore applied to the analysis of earthquake response of the pearl river immersed tunnel

    條裝地下結構如隧道、各種埋設管道等一般可看作彈性地基梁進行靜力及動力分析在地震條件下，結構與土相互作用，但土的振動成為主要因素為分析土的地震響應需把基土這一三維連續體作簡化處理，簡化成為等效多質點模型本文著重探討這種簡化模型的建立方法，推導等效方程，通過幾種簡化體系的分析比較，論證單質點串體系的合理性，並將其應用到廣州黃沙芳村珠江水下隧道工程的地震響應分析，為抗震設計提供依據
  3. There the soil is from weathered limestone soil or loess.

    那裡的土壤是經過風化作用的石灰石土壤或黃土。
  4. Malan loess was a special water sensitive geological deposit, whose physical, mechanical and hydraulic properties changed obviously under the softening action of water

    摘要馬蘭黃土在水軟化作用下，土體的物理、力學與水理性質呈現出明顯的規律性，屬典型的水敏感性地質體。
  5. 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。
  6. Variation and effective utilization of soil water in longxi loessial tableland gansu province

    甘肅隴西黃土高原旱作區土壤水分變化規律及有效利用程度研究
  7. The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed, destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river

    摘要黃河源區生態環境惡化的地質原因之一是現代地質作用增強，形成以荒漠化為主的草地資源退化與下墊面改變，地區水氣熱平衡破壞；二是因凍土退化、萎縮，引起水環境變異，導致多層面與綜合成因的生態環境惡化；三是人為及鼠類活動對源區生態環境惡化起著推波助瀾的作用。
  8. In this part, the author expands the concnet research about the riverside towns of mounts and valleys on loess plateau, and together with their patterns and landscape problems including the concnet expansions of the divisions of riverside towns of mounts and valleys on loess plateau styles researching ; the definition of landscape ecological palatial scope ; the division of landscape components and their ecological effects ; the foundation evolution of riverside towns of mounts and valleys on loess plateau ; landscape analysis ; and the research to consent problems

    該篇主要針對黃土高原「川穀型」濱河城鎮及其濱水區的形態及景觀問題展開具體的研究。包括黃土高原「川穀型」濱河城鎮的分佈、類型化研究、景觀生態空間范圍的界定、景觀構成要素的分佈及生態作用、黃土高原「川穀型」濱河城鎮濱水區的功能演進、景觀分析、問題研究等方面的具體展開。
  9. The bleaching experiment of loess by iodine tungsten lamp and the equivalent dose ( de ) of loess estimated by sar from the earth ' s surface indicate that loess can be easily bleached by sunlight, and osl is suitable for the dating of loess. 2. equivalent dose estimated by sar, when each natural or regenerated dose osl measurement is corrected for changes in sensitivity using the osl response to a subsequent test dose and the recycling ratio is around 1, implies that sensitivity changes have been properly corrected

    用單片再生劑量法（ sar ）測定黃土樣品的d _ e值時，用固定的實驗劑量釋光信號校正後，再循環比（ recyclingratio ）都在1左右，說明對釋光靈敏度的變化起到了很好地校正作用；校正後， ogy再生劑量釋光信號與自然信號的比率都在5以下，信號的回復可以忽略不計。
  10. This paper deals with seismic response of a tunnel - soil system immersed tunnel ， as an underground structure ， must be compatible with the deformation of the surrounding soil thus the simplified model for a tunnel - soil system is established through two steps at the first step ， an mdof system is developed for modeling the foundation soil to this end ， dynamic behavior of the foundation soil is analyzed a typical section of the foundation soil simplified as a single mass - spring system on the basis of some equivalent criteria those mass are linked longitudinally by elastic springs to form an mdof system at the second step ， the tunnel is treated as a beam on elastic foundation ; that is ， the tunnel is connected with the soil massed to form a tunnel - soil system this model has been applied to the seismic analysis of huangsha fangcun immersed tunnel across the pearl river in guangzhou design recommendation is proposed on the basis of this analysis

    研究沉管隧道在地震條件下整體受力的分析方法分兩步建立計算模型第一步通過分析場地地基土切片的動力特性，根據等效原則將其化為等效單質點體系，然後在縱向用等效彈簧連接而成為多質點體系的地基土計算模型；第二步將隧道看作彈性地基梁與上述多質點體系通過等效彈簧連結而得到土隧道體系的計算模型本文結合廣州黃沙芳村珠江水下隧道工程實例建立了具體的計算模型並對多種不同的約束條件，進行了縱向與橫向地震響應時程分析，為該隧道的抗震設計提供依據
  11. Based on the serious shortage of soil moisture, soil aridity and vegetation recession in this region, the following issues are studied in this dissertation : ( 1 ) the meaning of soil water and its role in the water circulation ; ( 2 ) soil water deficit and its influence to vegetation growth ; ( 3 ) the definition of soil dried layer and the causes of its formation ; ( 4 ) soil dried layer distribution and characteristics in north of shaanxi loess plateau ; ( 5 ) the primary study of measurable index of soil dried layer

    本論文主要針對黃土高原土壤水分嚴重虧缺現狀以及因之而形成的土壤干化和林草植被衰退現象，主要對以下幾方面的問題進行了研究： （ 1 ）土壤水分的意義及其在生態系統水分循環過程中的作用； （ 2 ）林草植被土壤水分虧缺狀況及其對植被生長的影響； （ 3 ）土壤干層的涵義及成因分析； （ 4 ）陜北黃土高原土壤干層的分佈及特徵； （ 5 ）土壤干層的量化指標初步研究。
  12. At the end of late pleitocene, influenced by the climate of glacier period, the last great event of the region in the geological time was taken place so that the migration and extinction of organism species were resulted, loess accumulation was generally developed throughout the whole region, in the holocene, the most important environmental change was fluvial process, which was still influnced by two factors - neotectonics and palaeoclimatic changes

    更新世晚期末，受末次冰期氣侯的影響，本區發生了地史時期的最後一次大事件，造成了物種遷移和絕滅，全區廣泛發育黃土堆積。進入全新世，本區環境變化以河流作用最為顯著，沉積物主要分佈在各大水系的河谷中，構成一、二級階地和近代河床與河漫灘堆積。
  13. Check dams system plays an irreplaceable role in preventing gully bed from cutting down, improving yield, accelerating the recovery of regional vegetable and adjustment of land utilization structure, improving adjustment of rural industrial framework, enhancing the efficiency of water resources, ameliorating local traffic, speeding up the development of rural science, technology and civilization

    研究結果表明，黃土高原丘陵溝壑區的淤地壩壩系在防止溝道侵蝕、提高糧食產量、促進植被恢復及土地利用結構調整、促進農村產業結構調整、提高水資源利用率、便利交通、促進農村科技文化事業的發展等方面發揮著不可替代的作用。
  14. The suitable study area that is natural laboratory and has representative will be selected in the dissertation, a series tests of in - site and laboratory have been carried through in the year of 1999 and 2002, the response process of soil in wave load are tried to be disappeared

    本學位論文在黃河口選擇典型研究區作為天然試驗室，從1999年至2002年進行系統的現場和室內試驗，試圖發現土體對波浪作用的變化響應過程，這是本論文的另一立論依據。
  15. As an example, the high loess slopes of tong - huang high way is used to prove that this model is valid

    為了驗證模型的實用價值，作者以銅黃一級公路某黃土高邊為例進行優化分析。
  16. The information of the carbon and oxygen isotopes in the ground - water ' s in carbonate plays an indicated role in the seperation the ground water system. and in the end of the paper, some prelimilary suggestion have been naturally put forward for the stop of the leakage in the dam foundation

    中稀土sm tb的比值反應了水巖相互作用過程中巖溶作用以及黃鐵礦氧化作用的強弱。地下水中碳酸鹽碳氧同位素的信息對地下水系的劃分起到指示作用。最後，對壩基的防滲提出初步的建議。
  17. After the streamlines and potential lines were plotted, the potential line of the hardening and softening parts were taken as the same ellipse form. in order to establish the softening elasto - plastic model of qi loess, the plastic potential function used is in a ellipse form and the plastic work function was used as its hardening parameter

    作流線和勢線，揭示了勢線的硬化部分和軟化部分具有相同的橢圓曲線形式，採用橢圓來表示塑性勢函數，以求待定塑性功函數為硬化參數的方法建立了q1黃土的軟化型彈塑性本構模型。
  18. The paper deals with the load distribution law and the development of side resistance and end resistance of single bored pile in loess under vertical load through a great number of tests in field on single pile employing some advanced equipments such as sliding micrometers. some examples are given to demonstrate the application of these laws into optimization design of piles

    本文通過大量的單樁現場試驗，利用瑞士滑動測微等先進測試手段，分析和研究了黃土地基中鉆孔灌注樁單樁在豎向荷載作用下側阻力和端阻力的發揮特徵及荷載分佈規律，並用實例說明了如何利用這些規律進行工程優化設計。
  19. Choosing the atomic absorption spectrometry as a basic analytic method and icp / ms as a contrast method and using the sequential selective extraction schedule, the characteristics of weak geochemical signals from deeply concealed deposits were studied in loess covered jiaolongzhang polymetallic deposit and zhangquanzhuang gold deposit

    本文採用原子吸收法作為基本分析方法，並以icp ms為比較方法，通過選擇性循序提取試驗，研究了甘肅蛟龍掌多金屬礦和河北張全莊金礦黃土覆蓋條件下，地表黃土中地球化學弱信息特徵。
  20. 2. according to the weighted average, soil co2 concentration is 0. 58 - 13. 29 times of that in atmosphere and is relatively lower than similar research, meanwhile, soil co2 concentration in profile varied irregularly, which possibly is due to the chemical and physical characteristic of loess soils, season change and arid climate etc. the variation of soil co2 concentration in profile is mainly controlled by soil temperature and soil moisture, in contrast with soil temperature, the control role of soil moisture is minor. in conclusion, in order to have a good command of the distribution and change rule of soil profile co2 concentration as well as its effect factors, multi - point and successive location experiment should be made, meanwhile establish indoor soil - pillar monitoring experiment

    土壤co _ 2的濃度約為大氣co _ 2濃度的0 . 58 ? 13 . 29倍與同類研究相比要低，這是與黃土的土質特性，觀測期又逢特別乾旱年制約了土壤微生物的活動，再加上土壤中有機質虧損，養分不足造成的；土壤co _ 2含量的變化是隨溫度的升高而升高，在夏季達最高值，冬季最低；在土壤co _ 2濃度變化的影響因子溫度和水分中，溫度的影響作用高於水分；土壤剖面co _ 2濃度隨著深度增加，總的變化趨勢是遞增的，但也有反復，甚至有的順剖面而下幾乎保持一恆值，這與季節變化和黃土自身結構的通透性以及在觀測期內的乾旱氣候等條件有關。
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