field capacity 中文意思是什麼

field capacity 解釋
土壤容水量。

  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • capacity : n 1 包容力，吸收力，收容力。2 容積，容量；【電學】電容，負載量。3 能力，才幹，本領；性能，機能。4...
  1. The bearing capacity of foundation soil and batholith is one of the most important questions for discussion in the field of geotechnical engineering ; md foundation engineering

    地基及巖基承載力問題是巖土工程及基礎工程領域最重要的課題之一。
  2. The management work data of oil - field earthquake exploration and oil - well position, which has not only data of current space position, but also entitative attribute data describing, have great capacity, traditional cad graphics describing the data plus the model database managing mode ca n ' t already adapt the modem exploration with well geography information for management work demand, so it is necessary to realize the unique management of exploration and oil - field well space data and attribute data use advanced geography information system ( gis ) technique, this thesis is based on the excellence ' s table ' s top geography information system - the maplnfo software, using the second process technique, the digital relief map and tectonic map as the base map, the earthquake exploration database as the original data, established the gis of the exploration and oil - field well in the area of the liaohe oil - field, realize visualization management, it provides a reference thereunder for the earthquake exploration deplo ying the workload and proceeding the technique design, and completed lots of practical work

    油田地震勘探與油井井位管理工作數據量大，既有空間位置數據，又具有實體的屬性描述數據，傳統的cad制圖+屬性數據庫管理模式已經不能適應現代勘探和井位管理工作的需要，採用先進的地理信息系統（ gis ）技術，實現勘探和油田井位空間數據和屬性數據的統一管理是必然的趨勢。本文以優秀的桌面地理信息系統mapinfo軟體為開發平臺，在此基礎上進行二次開發，以數字化地形圖、構造圖為載體，以地震勘探數據庫為數據源，建立了遼河油田范圍內的地震勘探和油田管理信息系統，實現了數據的可視化管理，為地震勘探部署工作量、進行技術設計，提供了圖形和數據的參考依據。並完成了很多實際工作。
  3. Field capacity is a property of a unit volume of soil.

    野外容水率是單位土體的一種特性。
  4. Soil at field capacity has a high water potential

    土壤處於田間持水量時通常有很高的水位。
  5. Field capacity field moisture capacity

    田間持水量
  6. Any more water added to soil at field capacity would drain away by gravity

    超過田間持水量的所有添加的水分的都會由於重力作用而流失。
  7. Field capacity the point at which the soil contains all the water it can hold by capillary and chemical attraction

    田間持水量：土壤通過毛細作用和化學吸力可維持的全部水量。
  8. Water content at field capacity is usually expressed as a percentage of the weight or volume of oven - dry soil

    土壤含水量一般用干土壤的重量或體積百分比來表示，它受土壤質地的影響。
  9. The threshold value of soil water contents for photosynthesis and stomatal resistance is about 14 ( 0g ), i. e., 60 65 of field capacity

    棉花的光合速率和氣孔阻力隨土壤含水量變化的閾值約在14土壤含水量水平，該閾值相當於田間持水量的60 65 。
  10. In conclusion, the variable degree of the soil water properties and bulk density in different layers is water content > wilting point > field capacity > saturation > bulk density

    總的來看，各水分特性在剖面各層的變異情況為:含水量>萎蔫含水量>田間持水量>飽和含水量>容重。
  11. Bulk density in 0 ~ 20cm, 20 - 40cm and field capacity in 20 ~ 40cm can be simulated with pure nugget effect model, and they are not spatially correlated in sampling scope. 4

    O ~加cm 、 20一40cm土壤容重和2 } 40cm田間持水量符合純塊金效應模型，說明在采樣范圍內它們的空間相關性不存在。
  12. 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。
  13. This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology

    該多功能激光光電實驗系統以泰曼-格林干涉（ twyman - green ）光路作核心，包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法，同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。
  14. Moreover, according to different land use types, bulk density shows the lowest value for the woodland while the highest value for the grassland and the subsoil of farmland, saturated soil moisture and field capacity exhibit the highest values for woodland while the lowest for the grassland and the subsoil of farmland, and the wilting moisture in woodland is also the highest and that in the farmland is the lowest

    不同土地利用類型土壤物理性質也存在顯著差異，容重以農地亞表層和草地較大，林地較小；飽和含水量和田間持水量以林地較大，農地亞表層和草地較小；萎蔫濕度則以林地較大，農地和果園地較小。
  15. The soil physical properties have obvious vertical distribution characteristic in the slope. the bulk density in sunlit slope is greater than it in sunless slope, and change in the follow order in the slope : top < middle < lower. while saturated soil moisture, field capacity, and wilting moisture are on the contrary

    在地形上，土壤物理性質具有明顯的垂直分佈規律，陰坡除土壤容重外，飽和含水量、田間持水量和萎蔫濕度均大於陽坡；同一坡度和坡向下，容重從坡下向坡上遞增，飽和含水量、田間持水量和萎蔫濕度均從坡下向坡上遞減。
  16. According to physiognomy, the bulk density changed as the following order : upland > hills > hillslopes > gully slopes, the saturated soil moisture arranged as : hillslopes > hills > gully slopes > upland, while field capacity and wilting moisture are as follows : gully slopes > hills > hillslopes > upland

    在地貌上，土壤容重呈現出塬面梁頂溝坡梁坡，飽和含水量呈現出塬面溝坡梁頂梁坡，田間持水量和萎蔫濕度均呈現出溝坡梁頂塬面梁坡的趨勢。
  17. The objectives of this study are : ( 1 ) collect the basis data about soil physical properties, soil moisture, infiltration and evapotranspiration in the catchment scale for developing a catchment hydrological model, based on the dtm, ( 2 ) provide the hydrological information in the catchment scale for developing agricultural production, vegetation rehabilitation, and reasonable land using in this region. the main conclusions drawn from this study are : ( 1 ) the soil physical properties, including bulk density, saturated soil moisture, field capacity, and wilting moisture, were measured at 56 plots across the catchment

    為此，本文以黃土高原溝壑區典型小流域?王東溝為研究對象，通過大量的野外測定和室內分析，系統研究了流域土壤容重、土壤飽和含水量、田間持水量、萎蔫濕度、土壤入滲性能、土壤含水量和蒸散量的空間變異性，以期為該區農業生產、植被恢復和土地合理利用等提供科學的依據，同時為建立基於數字高程模型（ dtm ）為基礎的流域水文模型積累基礎資料。
  18. It was found that the soil physical properties had significant spatial variability in the catchment scale because of the joint - influences of land use, topography, physiognomy, and other factors. the spatial variation is small for field capacity, moderate for wilting moisture and bulk density, and great for saturated soil moisture

    受地形地貌和土地利用等因素的綜合影響，土壤物理性質在流域尺度內存在顯著的空間變異，飽和含水量的空間變異性最大，土壤萎蔫濕度和土壤容重居中，田間持水量空間變異最小。
  19. The field capacity and porosity increase gradually and bulk density decrease gradually. the significance linear regression between the field capacity and soil organic matter is discovered as well as porosity and bulk density

    此外，隨植被演替， 0 5cm土層田間持水量和孔隙度逐漸增加， 0 5cm土層容重逐漸降低，且均與有機質含量呈顯著線性正相關。
  20. The physical and chemical properties of the soil were analyzed, including nutrient change and routine index of acidity and alkalinity, in addition, compared them with natural soil and studied their variation and correlation. the results as follows : the soil bulk density of harbin urban vegetation is higher, total porosity and field capacity are small

    對其土壤的理化性質和養分狀況等指標進行分析，並與松花江地區自然黑土進行了對比，研究其變化的趨勢和養分相關性。結果表明：哈爾濱城市綠地土壤容重較大，孔隙度和田間持水量少，有機質缺乏，養分含量較低，相關性差，土壤ph值呈中性，肥力水平低。
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