粒狀土壤 的英文怎麼說
中文拼音 [lìzhuàngtǔrǎng]
粒狀土壤
英文
soil granular- 粒 : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
- 狀 : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
- 壤 : 名詞1. (土壤) soil 2. (地) earth 3. (地區) area 4. (姓氏) a surname
- 粒狀 : graininess; granulose; granular粒狀冰 [水文] granular ice; 粒狀材料 bulk material; granular mater...
-
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 。Crumb structure the texture of a soil in terms of the size of the soil particles and how they interact, often determined simply by rubbing the soil with fingers
團塊狀構造:根據土壤顆粒的大小及顆粒之間的相互作用而決定的土壤的質地結構。The intense eluviation and weathering of soil with groundwater and run - off result in the enhancing of capacity of transference of some elements, such as si, al, fe, mn. the chemical reactions of the colloid particles in the soil water make those crannies or holes filled by some epigenetic clay minerals and quartz. then a great deal of white reticulate clay comes into being in the quaternary laterite of the dongting basin
地下水和地表水強烈的淋溶作用使土壤中硅鋁鐵錳等元素的遷移能力增強,土壤膠體粒子之間的化學反應,使得這些孔隙空間在後期逐漸被次生黏土礦物和石英所充填,最終,在洞庭盆地第四系紅土地層中形成大量的蠕蟲狀和根狀白色網紋。For understanding the soil microphotograph better, technique of opengl is used to make three - dimensional reconstruction. finally, some expectation is bring forward
為了更好的理解圖像中孔隙和顆粒的分佈狀態,利用opengl技術實現土壤顯微圖像的三維重建。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。Soils : investigation and testing. practical method for identifying the 0 50 mm fraction of a granular material. determination of particle size and blue value
土壤.調查與試驗.鑒定粒狀材料的0 50mm粒度極的實用方法Geotechnical investigation and testing - laboratory testing of soil - part 2 : determination of density of fine grained soil iso ts 17892 - 2 : 2004 ; german version cen iso ts 17892 - 2 : 2004
土工調查和試驗.土壤的實驗室試驗.第2部分:細粒狀土Standard test method for permeability of granular soils constant head
在常水頭壓力下顆粒狀土壤滲水率的標準試驗方法Presently, the scientist have made out some successes by using biotechnology and molecuology, for example, planting out regeneration shoots, culture suspended cell in ferment tank, screening mutant tissue with high content of flavonoids, cloning and sup - expression of key enzyme, restraining derivative pathway by anti - dna or anti - rna and inducing genetic transformated hairy root
通過培養水母雪蓮的發狀根將是獲得雪蓮類黃酮極有前途的方法,目前還是一項待填補的空白。發根農桿菌( agrobacteriumrhizogenes )是一種革蘭氏陰性土壤細菌,細胞內有200kb左右的雙鏈閉環dna ? ri質粒( rootinducingplasmid ) 。4. the soil structure fractal dimension ( ds ) is defined to describe to soil pore connectivity. when the ds is smaller than the dp, soil pore connectivity is change better, when the a is bigger than the dp, soil pore connectivity is change worse. the ds and difference between the ds and the dp is sensitive to the variety of soil structure, they can be use to describe the variety of soil structure
土壤結構分形維數d _ s與其粒徑分佈分形維數d _ p的差值對不同質地的土壤水分特徵曲線的變化是十分敏感的, d _ s和為土壤結構的定量化描述提供了兩個全新的指標, d _ s反映了不同質地土壤的結構狀況,反映同種質地土壤的結構變化。Soil nutrient and soil granule of ecological economic forest in different times are studied. research results indicate that ecological economic forest contributes to improving soil nutrient and soil granule
摘要對生態經濟林在不同時期的土壤養分及其顆粒變化情況進行了研究,結果表明,生態經濟林對改善土壤養分和土壤顆粒狀況具有積極的促進作用。A good forest structure could improve the even degree and range of distribution obviously, and improve the porosity ; the fractal dimension ( fd ) and mean weight diameter ( mwd ) could sign the soil structure feature objectively
良好的林分結構能明顯提高土壤粒徑的分佈均勻程度與范圍,改善土壤孔隙狀況;分形維數和重量平均直徑能比較客觀地表徵土壤結構特徵,是較為理想的土壤結構測定指標。分享友人