根土層 的英文怎麼說

中文拼音 [gēntǔcéng]
根土層 英文
rootlet bed
  • 根 : Ⅰ名詞1 （植物的營養器官） root （of a plant） 2 （比喻子孫後代） descendants; posterity 3 [數學] ...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions

    同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。
  3. The essential cause that induces subway vibration is the inter action between the train ’ s wheels and rail. through the sleeper, ballast bed, roadbed and soil layer, the vibration spread to far place

    地鐵振動產生的根本原因是由於輪軌的相互作用，再通過軌枕、道床、路基和土層依次向遠處傳播。
  4. Results showed : ( 1 ) if the proportion of water in the soil is lower than wilting coefficient, and if irrigating water is very little, ( irrigating water is spreading horizontally and vertically ) the relationship between the horizontal width ( x ) and the ? rtical depth ( y ) is remarkable. the equation is y - 0. 02 12x2 + l. 8546x - 17. 88. the related coefficient is r = 0. 9350

    結果表明： （ 1 ）在土壤含水量低於萎蔫系數的乾燥條件下，進行微量穴滴灌，滴灌點土壤濕潤面直徑x與最大垂直面滲透深度y呈顯著相關，數學模型為： y = - 0 . 0212x ~ 2 + 1 . 8546x - 17 . 88 ，相關系數r = 0 . 9350 （ 2 ）在微量補水灌溉情況下，只有灌水量大於4000ml /穴，才能使滴灌水滲透到20cm以下土層，達到作物根系集中層，否則水分很難被作物吸收，造成滴灌水的浪費。
  5. Meanwhile, most aspects about this perspective are concerned, which include quantification of the soil water background of the plateau area, the regional spatial variation of soil water background and variation along the slope, mosaic structure and seasonal changes etc. the results show that : ( 1 ) for the fundamental circumstance for vegetation development is the original debilitated slope, so the perspective of soil water background specially for the loess plateau refers to the soil water conditions on the original slope. ( 2 ) the value of soil water background appears to be a descending trend from south to north based on the difference of vegetation zones. in the forest zone, soil moisture contents beneath 3m depth from the soil surface are more than 12 % usually ; in the forest - pasture zone, the values of soil moisture content beneath 4m depth underground are more than 6 % and stable, and tend to be ascending while the depth increases ; but the values in the dry pasture zone is lingering between 4 % to 6 % from the surface layer to sub - layers

    發展了「土壤水分背景」的概念，並以之為基礎對其各個方面進行了研究，使之形成一個相對獨立和完整的體系，主要包括黃土高原土壤水分的背景值、土壤水分背景的區域分異、坡面分異、鑲嵌結構及其季節分異等： （ 1 ）由於植被生長發展、演替的基礎階段是天然草被群落，故認為黃土高原的土壤水分背景在概念上是特指該區天然草被群落下的土壤水分狀況； （ 2 ）黃土高原的土壤水分背景值，根據植被地帶的不同表現出自南向北逐漸降低的規律：森林地帶3米以下土層水分背景值普遍穩定地高於12 ，森林草原地帶4米以下土層水分背景值穩定大於6 ，且均隨土層的加深水分含量逐漸增加，而草原帶的土壤水分背景值自土表至底土層一直在4 6之間徘徊。
  6. According to the crt rule and the concrete situations of zhuolu county, the grading standards included seven main factors ( slope, soil body thickness, condition of irrigation, o. m., soil texture, salt - status, soil body configuration )

    根據crt值法則和涿鹿縣具體情況，採用特爾菲法，確定了分等因素指標集，該因素指標集包括：坡度、有效土層厚度、灌溉保證率、有機質、質地、鹽漬化、剖面構型七個主要因素。
  7. The root system of malus toringoides is so developed that it can grow on prior soil and in cracks of rock. like malus transitoria, malus toringoides tolerant to draught and can grow on sunny dry slope, rocks of steep cliffs, barren stone area, roadsides and field sides. malus toringoides was also adapted to habitat shade and can grow normally gorges of hill, and even on sides of brook and river, where water often attack on

    變葉海棠根系發達，能穿透堅硬的土層和巖石裂縫，它具有喜光耐旱的特點，在陽坡、凸坡、懸崖峭壁、瘠薄堅硬的石穀子地、道路兩旁和農耕地邊都能正常生長，與花葉海棠近似；變葉海棠也具有喜濕耐陰的特點，在深山峽谷、甚至在根系長期經受洪水侵襲的溪邊、河岸也能正常生長，與隴東海棠近似。
  8. Based on in - situ investigation, indoors soil tests, data process and calculation analysis for chunhua reservoir, this article acquires the distributing regulation and physical & mechanical properties for each layer soil below the dam base, and further determines typical model cross sections for static & dynamic stress deformation analysis

    本文根據對純化水庫進行的現場勘察、室內土工試驗、室內資料處理、計算、分析獲得了壩基以下各土層的分佈規律及物理、力學性質指標，進而確定靜、動應力變形分析的典型斷面。
  9. She knew it not, and would not have believed it yet though the layer of mould under which she fancied that her soul was buried seemed unbroken, the delicate, tender, young blades of grass were already pushing through it, and were destined to take root, and so to hide the grief that had crushed her under their living shoots that it would soon be unseen and forgotten

    她不知道，也不相信，從她心中看來無法穿透的土層中，萌出細嫩的幼芽，一定會生根，以她生氣盎然的嫩葉遮蓋住她的悲哀，很快就會看不見，覺不出。創傷從內部慢慢愈合。
  10. As most tree roots do not grow below about 2 m depth, even for large trees a 3 m rootball depth should be adequate

    由於大部分樹根都無法于地深兩米以下的土層生長，所以，即使對大樹而言，三米深的根團，已經綽綽有餘。
  11. She was, for one thing, physically and mentally suited among these new surroundings. the sapling which had rooted down to a poisonous stratum on the spot of its sowing had been transplanted to a deeper soil

    她像一棵幼樹，在原先栽種的地方，已經把根扎進了有毒的土層里，而現在已經被移植到深厚的土壤里了。
  12. The papers and technical reports about the oil tank foundation treatment shows that in our country abundant experiences have been built up in dealing with the soft clay foundation, while there were few cases for sand foundation. analyzing the geological condition, the author proposed that the foundation soils at shuguang pump station belong to high - permeability sand layers

    根據曙光泵站地區的地質條件，論文認為該區主要是一套以高透水性的砂類土為主的地層，粘性土層較薄且富夾薄層粉細砂，地基土的水平向與垂直向排水條件良好。
  13. The result corrected by former result was to judge the land to be suitable for cultivation or not. in the end, productivity index threshold under different suitable - levels was determined by analyzing the frequency histograms distribution of 4 productivity index. the result shows that the productivity index criteria of reserved land in beijing is that altitude 800 m, slope 15, soil depth 30 cm and gravel content 15 %

    在生產性指標方面，以北京市土地開發復墾潛力調查評價為基礎，運用相關分析、主成分分析確定指標為海拔、坡度、土層厚度和礫石含量；對指標進行聚類，根據聚類結果對原有評價結果進行修正並判定后備土地資源的宜耕性；通過分析多因素綜合作用下四項指標的頻率分佈情況，確定上述四個生產性指標在不同宜耕等級下的閾值。
  14. The static loading test for three group of testing piles of jiading power plant secend stage project are analyzed and studied in this thesis, and the practical applying of high - accurate data collector, technique of waterproof insulation and testing technique of burying in the body of pile are introduced also. the vertical and horizontal loading features of three group of piles of different kind and constructing technique in different earth layer at the pile point are analyzed and compared and summed up with basic integro - differential equation calculating the pile earth system load transmit, transforming principle of stress - deforming and pile body rating of burying electric measuring element. changing law of stress, and changing law of pile body shifting and bending for different testing piles under vertical and horizontal load are showed so that the loading features of soil layer and pile at testing spot, reliable design data for pile type and base for scientific construction technique are provided

    本文僅就嘉定電廠二期工程中的三根試驗樁的靜載試驗進行了分析和研究，利用樁土體系荷載傳遞分析計算的基本微分方程及應力-應變轉換原理，結合預埋電測元件的樁身率定，對三組不同種類、不同施工工藝、不同持力層中的樁的豎直、水平承載特性進行了分析、比較和歸納，通過大量、全面的實測數據，經過整理、轉換和推演，揭示了不同試驗樁在豎直、水平荷載作用下的應力變化規律和樁身變位、撓曲變化規律，最終提供試驗場地土層和樁的承載特性，為該工程合理設計樁型提供了可靠的設計參數，為確定科學的施工工藝提供了有力的依據。
  15. Someone think it must use permeating theory to design, the others think it must use permeating theory to design. the building ministry made out the working standard of the later pressure grouting of pour pile, but it stand at the industry standard, is n ' t enough perfect and comprehensive. in this paper, the author put forward the design principle by analyzing the reasons that affect the bear load ability of the drilling hole pour pile and the principle that improve the bear load ability of single pile by later pressure grouting, put forward th e working technology and requirement of check before acceptance by analyzing and summarizing several models such as the chinese railway 11 office residential high building

    本文通過分析影響鉆孔灌注樁承載力的因素以及鉆孔灌注樁后壓漿提高單樁承載力的機理提出了設計計算的原則；通過中鐵十一局高層住宅樓鉆孔灌注樁低壓力后壓漿工程對6根樁的壓漿對比試驗及鉆探揭露確定了低壓力后壓漿所適用設計理論和方法；確定了低壓力后壓漿的壓漿壓力、壓漿量等參數；經過實驗及經驗總結確定了壓漿材料的選取原則及方法，列出了低壓力后壓漿在不同土層適用的壓漿材料。
  16. Then, by the comprehensive analysis of essential conditions for stone forest development, and the quantitative study on the evolution phases of bajiang karst catchment and the spacial coupling analysis of its hydro - geomorphological system, the paper studies the relationship between the evolution of bajiang karst drainage area and the development of stone forest, and, combined with the evolution history of the catchment, puts forward a model concerning the relationship between the evolution of bajiang karst catchment and stone forest development, in the mechanism of " tri - level erosion ", if a < s < c, the visible and actual height of stone pillars will keep on increasing, meanwhile, soil layer among stone pillars will become thicker and thicker, so the the height of stone pillars " root will become higher and higher, too

    在「三重剝蝕」機制中，若a s c ，石柱的可見高度和實際高度會不斷增高，同時，石柱的根部的土層會增厚，其土下部分的高度也會不斷增大。若a c s ，說明石柱的實際高度在增加的同時，其可見高度也在增加，但土層會變得越來越薄，最終當底土被完全剝蝕掉后，氣下溶蝕和土下溶蝕的差異消失，此時a接近於c ，石柱的實際高度將停止拔高或極緩慢增長，並在各種物理、化學風化的作用下而變得日益矮小。若s a c ，石柱的可見高度將趨于變矮，但驅動石林發育的土層厚度將會增大。
  17. The production of wheat is increased by 9. 6 % under sewage irrigation ; ( 2 ). dry matter and leaf area index of the wheat is much higher during nourishment growth stage, while dry matter and leaf area index of the wheat under fresh treatment is significant lower during productive growth stage ; ( 3 ). heave metal from swage enriched in the soil stratum in the depth of 0 - 30 cm, and the root length under sewage treatment is larger than that under fresh treatment.

    田間試驗表明，在相同試驗條件下，污水灌溉與清水灌溉相比： （ 1 ）污水灌溉可使冬小麥增產9 . 6 ； （ 2 ）作物地上部干物重和葉面積指數，在營養生長階段清水灌溉比污水灌溉值高，而在生殖生長階段清水灌溉比污水灌溉值明顯降低； （ 3 ）污水中營養物質主要富集在0 30cm土層中，在該土層中污水灌溉的小麥根量比清水灌溉的顯著增多。
  18. According to the analysis of dynamic characteristics of these seismic soil - layer structures, it was proposed that failure functions of foundation caused by strong earthquakes included liquefaction, seismic fissure filling, vibration falling, fracturing and seismic settlement of soil

    根據這些強烈地震成因土層構造的動力學特徵進行分析，認為強烈地震對地基土的破壞作用有幾種方式：液化作用、地震裂隙充填作用、振動塌落作用、斷裂破壞作用和震沉陷落作用。
  19. How to select suitable motheds is very important to utilize soft soil, for majority building require to be treated. acording to engineering geological features and building ' s requsition to ground, ground which is suitable for bearing stratum are analysed

    本文根據紹興城區工程地質特性，以及建築物對地基的要求，對適合作基礎持力層的土層作了分析，討論了可供參考的幾種地基處理方法。
  20. Seedlings may survive either through an early onset of the flood in the year after germination, or seedlings may survive through silty and clayey soil layers, which store water better than sand

    幼苗通過早的洪水或保持水分的粘土層可繼續活，長連通地下水的根，長成大樹。
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