water-saturated soil 中文意思是什麼

water-saturated soil 解釋
飽和土壤
  • water : n 1 水;雨水;露;〈常作 pl 〉 礦泉,溫泉;藥水。2 〈常 pl 〉水體;水域;水道;海;湖;河;海域;...
  • saturated : adj. 1. 飽和的。2. 充滿…了的。3. 浸透的,濕透的。4. (顏色)未被白色弄淡的。5. 〈美俚〉喝醉了的。
  • soil : n 1 泥土,土壤;土質。2 土地,國土。3 滋生地,溫床。4 農業生活,務農。n 1 臟東西,污物,污穢,污...
  1. The coefficient of variation of saturated water content decreased with the depth of profile. the coefficient of variation of bulk density and field capacity fluctuate with depth of soil

    飽和含水量的變異系數都隨深度的增加逐漸降低,含水量、容重和田悶持水量的變異系數隨深度的呈波動變化。
  2. At the same time, the quality of different - state water was studied. the results show : the soil bulk density of the fir wildwood heightens with the increase of soil depth, specifically 0. 74 > 0. 94 andl. 34g / cm3, the saturated, canaliculus and field moisture contents decrease gradually in layer a, b and c, accordingly the soil total foveola decreases gradually, and the moisture - hold capacity of the soil lessens gradually with the increase of the soil depth ; there is small difference of the soil bulk density between layer a and b in the outer space, which are respectively 0. 92 and 0. 99g / cm3, and the other laws are the same as the in ner in the main ; reverse success often occurs in the low position of the thoroughly - fell trace and plateau marsh is formed

    結果表明:冷杉原始森林土壤容重隨土層深度的增加而增大,分別為0 . 74 、 0 . 94 、 1 . 34g cm ~ 3 ,飽和持水量、毛管持水量、田間持水量a層、 b層、 c層逐漸減小,十壤總孔隙度也逐漸減小,土壤的持水能力隨深度的增加逐漸減弱;林外空地a層、 b層十壤容重相差不人,分別為0 . 92和0 . 99g cm ~ 3 ,其它規律與林內人體相同:皆伐跡地的低洼地段容易發生逆行演替,形成高原沼澤地。
  3. And the major results and some new viewpoints were presented as follow : 1 ) sediment content of cn tillage system in runoff process is substantially low compared to st under rainfall with high intensity, showing cn bear the efficient capacity of control soil loss. nevertheless, when soil is saturated, the runoff intensity of both tillage systems is near, implicating cn has the limited function of reducing runoff. 2 ) based on the case analysis of observed all rainfall - runoff generation processes, a ) the initiation time hysteresis of surface runoff generation is notable when rainfall fall upon the unsaturated purple soils, which is attributed to the property of rapid water sorption and much non - capillary porosity

    經近幾年的觀測和理論分析,取得了以下結果和創新的認識: 1 )在降雨強度較大的情況下,保護性耕作制? ?聚土免耕的產沙強度明顯較常規耕作制? ?順坡耕作的小,說明聚土免耕耕作制防治土壤流失是有效的;但當土壤達到飽和后,聚土免耕的徑流強度與常規耕作的差異較小,產沙強度也增大,因此,聚土免耕防治水土流失的能力是有限的。
  4. Geotechnical investigation and testing - laboratory testing of soil - part 9 : consolidated triaxial compression tests on water saturated soils iso ts 17892 - 9 : 2004 ; german version cen iso ts 17892 - 9 : 2004

    土工調查和試驗.土壤的實驗室試驗.第9部分:水飽和土
  5. The soil water moisture in the total tin - saturated layers will decrease with the irrigated water amount reduction in the 2005, 2010

    Sim土壤鹽分在2010年呈脫鹽趨勢,而40 70cln土壤呈輕度積鹽趨勢。
  6. Based on the foundation " liquefaction test study on the rapid railroad bed " supported by the railway department, some works on the liquefaction of silty soils have been carried out. in this dissertation, after making a short review of the works on seismically induced soil liquefaction, some research results are presented, which include the following contents. ( 1 ) depending on the dynamic triaxial test, the liquefaction strength of the silty soils is studied and two new models are proposed to evaluate the pore water pressure and the strain of the saturated silty soils during earthquake

    結合鐵道部發展基金項目: 「高速鐵道液化土地基試驗測試研究」 ,本論文概括總結了地震液化的研究現狀,就滬蓉高速鐵路徐州段可液化場地粉土地基的液化特性問題開展了一些研究工作,內容如下: ( 1 )提出了基於實用目的的粉土的孔隙水壓力增長模式和永久應變勢計算模型,並把此兩模型應用於場地的地震反應分析和地震液化性能的評價中;依靠循環振動三軸試驗技術,對粉土地基的地震液化強度進行了試驗研究;驗證了密實度是粉土液化的重要影響因素。
  7. Inflence of excess pore water pressure during pile driving in saturated soft soil

    飽和軟土地基中沉樁引起的超孔隙水壓力的影響
  8. Cadmium ( cd ) is one of the mostly polluting heavy metal. first, to characterize the adsorption property of cadmium, cadmium adsorption isotherms in soils were determined by the batch experiment, and the adsorption parameters were obtained ; second, miscible displacement experiments were carried out in saturated homogeneous soil columns under steady - state water flow, and the dynamics of flux concentration of cadmium leached in soils were measured

    首先,用批量平衡法開展了鎘在砂質壤土、壤質砂土和粉壤土中的吸附特性的試驗研究,獲得吸附常數;其次,採用易混合置換實驗的方法,對其在穩定流場飽和土壤中的運移進行了室內研究,獲得了目標溶質鎘在定濃度輸入條件下的出流液濃度動態。
  9. Soil saturated capacity, capillary capacity, total porosity and capillary porosity showed the trend of the " u " during the successional course of artificial forest, namely, they reduced on the early successional stages, after picea reached mature forest, soil porosity recovered slowly. the content of natural water was mainly affected by capillary porosity. from soil chemical properties analysis, the content of soil organic, humus, ha, fa and ha / fa of topsoil was more than that of bottom layer

    即人工雲杉幼林向成熟林演替階段,土壤飽和持水量、毛管持水量及總孔隙和毛管孔隙則減少,在40年生雲杉林達最低值,之後隨著雲杉自疏,微生態改善,林地凋落物分解加快,土壤飽和持水量、毛管持水量及總孔隙和毛管孔有上升的趨勢,毛管持水量是決定林地自然含水量的主要因子。
  10. The relationship of soil particle - size distributions and soil water retention characteristics, saturated and unsaturated hydraulic conductivity were studied in the lab

    本研究對陜西四種不同質地土壤的粒徑分佈與水分特徵曲線及飽和、非飽和導水率的關系進行了研究。
  11. Measuring unsaturated hydraulic characteristic parameters, such as capillary soil water, saturated soil moisture, field moisture, saturated conductivity etc., is not only expensive but also accuracy uncontrolled

    測量非飽和帶水力特性參數:毛管上升水、飽和含水率、田間持水率、給水度、飽和滲透系數等,即費時、費力又難以保證試驗精度。
  12. Based on the results from both laboratory test and field application of vacuum preloading it can be concluded that soil is water - saturated in the processes of vacuum consolidation or vacuum preloading. thus, the consolidation properties in negative - pressure area cannot be calculated by using the theory based on non - saturation soil. negative pore - water pressure and suction were specified

    在室內試驗及現場試驗基礎上,證明真空預壓加固地基過程中,負壓區土體仍是飽和的,不能用非飽和土理論來計算負壓區的固結性狀,並辨析了負壓與吸力的概念。
  13. The soil - water characteristic curve, the coefficient of saturated hydraulic conductivity and the initial state of medium ; in the paper, the influence of rain infiltration on the slope stability is discussed, which is very helpful for forecasting slope stability in raining seasons and designing slopes in deep unsaturated zone

    )介質的本身性質,如土水特性曲線、飽和滲透系數、及介質的初始狀態;通過本文的研究,初步分析探討了降雨入滲對邊坡穩定性的影響,為在雨季邊坡失穩的預報和具有深厚非飽和區的邊坡的設計提供了科學的依據,具有一定的工程意義。
  14. The results showed, the breakthrough curve of nitrate vertical transport in saturated condition was more or less non - symmetrical, mainly due to the different proportion of mobile and immobile water in the soil and soil physical properties

    結果表明,在飽和條件下,硝態氮垂直運移過程的穿透曲線呈現不對稱形狀和拖尾現象,主要由於土壤中存在著動水和不動水的比例不同和土壤的物理性質所致。
  15. Thereby the complicated evaporation process of heterogeneous soil surface is simplified into a flux integral expression which contains two - pail contributions from soil water relatively saturated region and unsaturated region, and it is proved that the calculation of mean evapotranspiration efficiency in grid region can be simplified into weighted average of heterogeneous regions

    從而將非均勻地表區域的蒸發過程的復雜機制分解為地表層土壤水分飽和區與非飽和區影響下的通量貢獻積分式,從理論上證明,網格區平均蒸散率的計算可簡化為不同性質的區域加權平均。
  16. Although the biomass and yield of rice had been hardly affected by soil moisture content, when it was 80 % or 100 % of saturated water content ( swc ), but markedly by soil moisture content 60 % of swc

    土壤含水量為飽和持水量的60 %時對旱作水稻生物量和產量影響較大,而80 %和100 %時幾乎沒有影響。
  17. After yearly burning, soil moisture content, porosity, separate coefficient, capillary and field moisture capacity increased, however, soil saturated water retaining capacity and unit weight decreased

    連年火燒使土壤含水率、孔隙度、分散系數、毛管持水量和田間持水量升高,而使土壤飽和持水量、容重下降。
  18. The effects of forest fires on soil moisture content, separate coefficient, porosity, water - retaining capacity, organic matter, available n, available ca, fungi and fine root significantly varied between the years after burning. the effects of forest fires on soil separate coefficients, porosity, saturated water - retaining capacity, available mg, fine root significantly varied between the fire intensity

    火燒後年限對土壤含水率、分散系數、孔隙度、持水量、有機質、有效氮、有效鈣、真菌、細根系生物量的影響有顯著差異;火燒強度對上壤分散系數、孔隙度、飽和持水量、有效鎂、細根系生物量的影響有顯著差異。
  19. Methods of soil investigations for agricultural engineering - physical laboratory tests - part 9 : determination of the saturated hydraulic water conductivity in the cylindrical core - cutter

    農業工程中土壤調查研究方法.物理實驗室試驗.第9部分
  20. Temperature decrease of crude oil pipeline buried in soil saturated with water during shutdown in winter

    飽和含水土壤埋地原油管道冬季停輸溫降
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