soil properties 中文意思是什麼

soil properties 解釋
土壤性質
  • 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...
  • properties : （特性）命令修改特性
  1. But the amendment of soil properties depending on the economy and technology are still facing the restriction of boundary effects

    但是依靠經濟和技術改善土壤性能，仍面臨著邊際效益的制約。
  2. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。
  3. Characteristics of plant community and soil properties in the plantation chronosequence of caragana microphylla in horqin sandy land

    科爾沁沙地不同年代小葉錦雞兒人工林植物群落特徵及其土壤特性
  4. Distributing pattern of soil properties, including soil moisture and nutrients beneath the natural shrubs of sabina vulgaris and its ecological adaptability of clonal traits to sandy habitats in mu us sandland were studied using field experiments

    應用野外實驗生態學方法研究了毛烏素沙地天然臭柏灌叢地土壤資源的分佈格局及天然臭柏克隆特性對沙地環境的生態適應性。
  5. Soil properties and forest growth in chinese fir forest soils different in preceding vegetation in lishui of zhejiang province

    浙江省麗水不同前茬杉木林土壤性質與林木生長
  6. The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var

    本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。
  7. Soil properties and degree of desertification in lower reaches of tarim river

    確定了研究區淺溝和切溝侵蝕發生的地形臨界
  8. The following results of recent researches were presented on measuring stiffness of a wide range of soils such as clay, sand and gravel, characterizing anisotropic properties of soil induced by external loading, measuring stiffness of base and subgrade materials in the pavement, determining soil properties in a centrifuge model during the flight of a centrifuge, and understanding wave propagation in granular materials under micro - gravity environment with this technique

    木文報道了壓電陶瓷傳感器應用於粘土、砂和礫石等不同種類土的研究成果，對應力導致土體各向異性的研究，對路基和地基土的力學特性檢測，在離心模型試驗中的應用，以及在微重力環境下的粒狀材料中波的傳播特性的研究等。
  9. According to the basic equation for water flow in subgrade soil, based on the basic soil properties of compacted loess, the redistribution of soil moisture and the soil water - migrate parameters are studied

    摘要基於黃土路基壓實後土體的基本性質，根據路基土中水分運動的基本方程，通過室內一維土柱入滲試驗，得到不同壓實度的黃土濕潤鋒濕度與平均濕度、水分入滲速率的關系曲線。
  10. Analyses of soil properties and microbes in the solar - greenhouse from shouguang city

    壽光日光溫室土壤性狀及微生物類群分析
  11. On the basis of some research findings in recent years, the paper summarizes characteristics and causes of greenhouse soil salinization, and its effects on soil properties, including physical and chemical properties and microorganisms as well

    本文根據近年來的相關研究進展，綜述了設施土壤次生鹽漬化的基本特徵、形成原因及其影響因素，並闡述了設施土壤次生鹽漬化對土壤理化性質以及土壤微生物狀況的影響。
  12. Biodiversity exists among am fungi and is influenced by numerous factors including soil properties and plant species. if am fungi are to be used in sustainable agricultural systems it is necessary to study native am fungi in the target areas and then select efficient isolates that can be applied as inocula in the field to improve crop growth. the objectives of this study were to investigate the germplasm of am fungi, to understand the distribution pattern of am fungi in different ecological conditions such as area, soil factor and host plant, to select isolates effective in nutrient acquisition by the host plant sweet potato, to test their effectiveness under field conditions, and to monitor amf after their introduction into the field

    本研究通過調查我國北方部分地區的am真菌資源，研究了am真菌的種群組成及其在空間、土壤利用方式和宿主植物類型等不同環境條件和空間尺度上的分佈規律；在此基礎上，根據它們對甘薯的生長、吸磷效應篩選出高效菌株，在大田條件下研究了am真菌菌絲的分佈特性、代謝活性及其對甘薯產量和品質的影響；並通過分子探針跟蹤調查了引入am真菌在共生體中的發育和表達，以期為菌根真菌的生產應用提供技術支持。
  13. Based on the achievement of related previous studies on this issue and the unsolved problems, here three aspects are concentrated in this dissertation for the issue. they are : study on the variation law of soil water and soil nutrients " background and productivity of the artificial locust woodland in northern shaanxi province ; the characters of the communities restoration and soil properties change of different barren grassland in loess plateau. the objectives are approached both by field survey and lab analysis

    本研究針對黃土高原水分生態環境研究的現狀，黃土高原的生態建設和植被恢復中存在的問題，主要致力於以下幾個方面的研究：陜北黃土高原不同立地條件下人工刺槐林土壤水分與土壤養分背景和生產力關系研究；黃土高原退耕地不同撂荒年限草地的群落動態與土壤性質演變分析。
  14. Effects of soil erosion on the soil properties in slope cropland of northern shaanxi

    陜北坡耕地土壤侵蝕對土壤性質的影響研究
  15. Based on analysis of soil physical, chemical and biological properties, soil properties and soil integrated fertility index ( iff ) of different successional series of subalpine coniferous in western sichuan were systematically studied. the results showed soil fertility degradation of subalpine coniferous forests was mainly related to decrease of soil organic matter

    從土壤物理、化學和生物學性質角度出發，系統地研究了四川西部亞高山針葉林不同演替階段土壤性質和土壤綜合肥力指標值，結果表明：川西亞高山針葉林土壤性質主要受土壤有機質的影響，人工林地土壤肥力質量退化主要由於有機質的減少並導致相關土壤物理、化學和生物學性質惡化。
  16. The primarily results were displayed as follows : 1. according to research for linear slope in the different slope gradient and different rainfall intensity, soil steady infiltration rates between water - pressure and no water - pressure have a linear relation while there is the same soil properties, soil steady infiltration rates in gully areas of loess plateau is between 1. 8 times and 3. 0 times, between 2. 1 times and 3. 2 times in hilly areas of loess plateau

    主要結果如下： （ 1 ）以不同坡度、不同降雨強度下的直線坡為例，得出黃土坡耕地有壓入滲速率大於無壓入滲速率，兩者呈直線關系，在黃土高原溝壑區兩者穩定入滲速率之比介於1 . 8 3 . 0倍之間，黃土丘陵溝壑區介於2 . 1 3 . 2倍之間。
  17. Soil properties and water conservation function of different forest types in jinshajiang river watershed

    金沙江流域不同林分類型的土壤特性及其水源涵養功能研究
  18. The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus

    通過對水泥?水玻璃加固土的無側限抗壓強度試驗，以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗，得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系，即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加，水泥?水玻璃加固土的抗壓強度相應地降低；而隨著原狀土的容重、壓縮模量的增加，水泥土的抗壓強度也隨之增加。
  19. Spatial variants and sampling strategies of soil properties for precision agriculture

    精確農業田間土壤空間變異與采樣方式研究
  20. The traditional methods of describing soil properties are on the whole qualitatively soil classification, not researching soil spatial variability quantitatively

    傳統描述土壤空間異質性的方法基本上是定性地土壤分類，而不是定量地研究土壤空間變異。
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