礦質土表層 的英文怎麼說

中文拼音 [kuàngzhítǔbiǎocéng]
礦質土表層 英文
a-horizon
  • 礦 : 名詞1. （礦床） ore [mineral] deposit 2. （礦石） ore 3. （開采礦物的場所） mine
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  • 表層 : skin layer; superficial coat; veneer; surface; sexine; bloom; supercrust; surface layer表層沉積 [...
  1. 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 。
  2. Many research such as clay minerals, suspend in the sea, the grain size trend analysis of surface sediment, poc 6 cu and 8 c13 in bottom sediments etc. showed that : the yellow sea warm current divided the south yellow sea into two, the terrestrial material of modern sediment on the west shelf plain mainly came from the modem yellow river suspend carried by the alongshore current, and the sediment difference between the west and east side of yellow sea trough was represented by the sedimentation thickness in postglacial period, sedimentation stratum, and oxygen isotope record

    粘土礦物、碳酸鹽、粗碎屑、海域懸浮體、表層沉積物粒度趨勢分析、 poc c ~ （ 13 ）及底質沉積物的c ~ （ 13 ）等多方面研究表明：以黃海暖流為主導，南黃海堆積陸架平原西側現代沉積物陸源物質主要源於黃海沿岸流攜帶的現代黃河懸移物質，黃海槽東西兩側的沉積差異主要表現在冰消期以來沉積厚度、沉積層序、氧同位素記錄上。
  3. Studies on geology of the deposits and geochemistry of trace elements, rees, isotopes, ore - forming fluids show that the ore - forming materials came from varied sources. ore - forming materials of the tianbaoshan deposit was chiefly derived from different sedimentary rocks of the upper crust and orogen, while those of the daliangzi deposit mainly from the sinian dengying formation. meteoric waters were the major source of the ore - forming solution

    礦床地質特徵以及常微量元素、稀土元素、同位素、成礦流體等地球化學特徵的研究表明，礦床成礦物質是多來源的，天寶山礦床成礦物質主要來自上部地殼和造山帶各種沉積巖，大樑子礦床成礦物質主要來自震旦系燈影組地層；兩個礦床成礦溶液主要來自大氣降水；硫大部分來源於同時期的海相沉積地層（震旦系燈影組）中被細菌還原的海水硫酸鹽。
  4. The soil organic content in the topsoil decreased with increase of artificial forest age. because the total n and alkali - hytrolyzable n were from mineralization of soil organic matter, their content in the artificial forest decreased with the decrease of soil organic matter

    在土壤化學性質方面，各林地土壤有機質含量表層大於底層，人工雲杉林土壤表層有機質含量隨著撫育林齡的增加而降低，土壤中全氮、堿解速效氮主要來源於土壤中有機質的礦化，其含量隨有機質的減少而降低。
  5. Because of their excellent characteristics, superabsorbents are widely used in health, agriculture and horticulture applications. based on the influencing factors, such as type of structural layer, interlayer charge, interlayer distance, cation exchange capability, surface area and ratio of swelling, kaolinite, sercite and bentonite are choosed as the mineral fillers to synthesize the superabsorbent composite

    本文從粘土的結構層型、層電荷、層間距、陽離子交換容量、比表面積和膨脹率等各方面綜合比較研究粘土礦物的性質，選擇了高嶺土、膨潤土和絹雲母這三種粘土礦物作為無機填料，制備粘土?有機聚合物超吸水性復合材料。
  6. In accordance with peculiarity of earth ' s surface being covered by thick soil layer, the stratum in north - west mining area, are classed as rock layer and soil layer, and the mathematic model of predicting surface movement is established according to the stochastic medium theory, the method for solving mathematic model and setting - out the parameters in prediction are developed

    摘要針對西北礦區地表為巨厚黃土層的特性，將上覆地層分為巖層和土層兩種不同介質，應用隨機介質理論建立此類礦區地表移動預計的數學模型，並提出模型的解算方法及預計參數的確定方法。
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