English translation for "epipedon"
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- 表土层
表土特性
Related Translations:
- Example Sentences:
| 1. | Many entisols have an ochric epipedon and a few have an anthropic epipedon
许多新成土有一层淡薄表层，有些则有一层人为扰动层。 | | 2. | They typically have an ochric epipedon , but may have an umbric epipedon
典型的淋溶土有一层淡色表层，但同样可能有一层暗色表层。 | | 3. | ( 3 ) the definition of soil series applied the method of direct nomenclature ( eg . qingjiang series ) , searches of soil series was the order : soil structure - the texture of hydragric epipedon - the proportion of clay and salt ( eg . apl - ap2 - g - clay loam - 0 . 54 ) , 10 typical soil sections were classified 10 soil series ( eg . qingjiang series beihe series ) and belonged to 5 subgroups and 4 groups of hydragric anthrosols
( 3 )土系采用直接命名法(如：清江系) ，其检索采取剖面构型+表层优势质地+粘砂比的性态检索顺序(如： ap1 - ap2 - c +粘壤土+ 0 . 35 ) ，被研究的10个典型土壤剖面被划分为清江系、北河系等10个土系，分别隶属于5个水耕人为土亚类、 4个水耕人为土土类。 | | 4. | 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
研究结果表明： 1太白山南坡土壤的主要理化性质随海拔高度的上升呈有规律的变化：随海拔高度上升，机械组成由粉粒砂粒粘粒逐渐过渡到砂粒粉粒粘粒，海拔1600m以下出现粘化层；土壤有机质丰富，表层有机碳含量一般在20g kg以上，有机碳含量随海拔高度升高而相应增加，海拔3500 3700m的灌丛草甸植被下有机碳含量最高；土壤呈酸性或微酸性，并随海拔上升， ph值略微降低，酸性增强，海拔2700m以上的土壤多呈盐基不饱和状态，表明土壤淋溶作用较强， ph值和盐基饱和度呈极显著正相关；土体与粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相对比较稳定，土体中sio _ 2含量较高， cao含量较少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和约占土壤矿质部分的92 ，矿质元素含量的顺序依次为： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。 | | 5. | 2 . the diagnostic surface horizons divided on the soils of the area are mollic epipedon , umbric epipedon and ochric epipedon . the diagnostic subsurface horizons are cambic horizon , argic horizon , histic evidence and mattic evidence . the diagnostic characteristics are sapric soil materials , folic soil materials , soil moisture regimes , soil temperature regimes , ferric property and base saturation
本地区土壤划分出的诊断表层有暗沃表层、暗瘠表层和淡薄表层，诊断表下层有雏形层、粘化层，诊断现象有有机现象、草毡现象，诊断特性有6个：高腐有机土壤物质、落叶有机土壤物质、土壤水分状况、土壤温度状况、铁质特性、盐基饱和度。 |
- Similar Words：
- "epipalaeolithic" English translation, "epiparasitism" English translation, "epiparonychia" English translation, "epipastic" English translation, "epipedobates spp" English translation, "epipelagic" English translation, "epipelagic community" English translation, "epipelagic fauna" English translation, "epipelagic fish" English translation, "epipelagic fishes" English translation
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