覆蓋土層 的英文怎麼說

中文拼音 [fùgětǔcéng]
覆蓋土層 英文
earth covering
  • 覆 : 動詞1. [書面語] （蓋住） cover 2. [書面語] （底朝上翻過來; 歪倒） overturn; upset 3. 同 「復」 （Ⅱ1. 2. ）
  • 蓋 : 蓋名詞（姓氏） a surname
  • 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...
  • 覆蓋 : 1 （遮蓋） cover; overlap 2 （植被） plant cover; vegetation3 （保護層 覆蓋物） cover; covering; ...
  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. In most cases, extracting oil involves chopping down the forest that blankets the region, draining the boggy ground, stripping off the topsoil and literally digging up the oily sand below

    在大多數情況下，要從油沙中提煉出石油需要先把覆蓋該地區的森林砍掉，排乾地面的水分，去掉表層土然後當然就是把地下的油沙挖出來。
  3. The earth surface of the region across it is mostly thicker humus soil or leaf falling covering layer, and has good heat reserving property, it is mostly weathering shingle, soil - aggregate mixture, and clay - gravel 0. 5m - 4. 0m under it, and weathering rock

    所經地區的地表多為較厚的腐殖土或落葉覆蓋層，其保溫性良好，下層0 . 5 ? 4 . 0米多為風化沙礫、碎石土和礫石土， ， 4 . 0米以下為風化巖石。
  4. Dynamic response research of high earth - rock dam on the thick moraine cover foundation

    深厚覆蓋層上高土石壩的動力反應特性研究
  5. To the influence of the plateau terrain, the impact of the elevation and the roughness of terrain to every energy component out and incoming are study, and basing the soil spectrum model proposed above, a new radiative transfer model of terrain area was put forwarded in which the soil water content, lai, terrain roughness and elevation were considered synchronously, and incoming scatter light was integral with the solid angle of semi - globe space defined by the slope of the pixel, so scattering lights of terrain and the sky are properly considered, but the operation is still within the acceptable range

    地形與反射率的關系是本文研究的一個重點。本文對崎嶇山地象元的各入射光和反（散）射光分量進行了深入分析，在所提出的濕潤土壤光譜模型和植被冠層模型的基礎之上進一步提出了新的適合青藏高原的山地輻射傳輸模型。該模型同時考慮了土壤含水量、植被覆蓋（ lai ） 、地形起伏和海拔高度的影響，並以象元坡面定義的半球空間立體角對環境入射光進行積分，使周圍地形和天空散射光均得到適當考慮，計算量又在可接受范圍內。
  6. Hada mountain embankment dam is located at strong motion earthquake area with 7 degree. it is a sand - fill dam with clay core, stability of the dam under earthquake and the preventive of foundation liquescence is very important for the dam design

    哈達山土壩是位於七度地震區，坐落在厚覆蓋層上的粘土心墻砂殼壩，壩體的抗震穩定、基礎的抗震液化是本工程的技術關鍵問題。
  7. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。
  8. On the first day, when, getting up early in the morning, he came out of the shed into the dawn, and saw the cupolas and the crosses of the new monastery of the virgin, all still in darkness, saw the hoar frost on the long grass, saw the slopes of the sparrow hills and the wood - clad banks of the encircling river vanishing into the purple distance, when he felt the contact of the fresh air and heard the sounds of the rooks crying out of moscow across the fields, and when flashes of light suddenly gleamed out of the east and the suns rim floated triumphantly up from behind a cloud, and cupolas and crosses and hoar frost and the horizon and the river were all sparkling in the glad light, pierre felt a new feeling of joy and vigour in life such as he had never experienced before

    第一天，他一大早就起了床，走出棚子，頭一眼就看見新聖母修道院開始還發暗的圓屋頂和十字架，看見覆蓋著塵土的草上的寒露，看見麻雀山的丘陵，看見隱沒在淡紫色遠方的，長滿了樹木的，蜿蜒著的河岸，他覺得空氣清新，沁人肺腑，可以聽到從莫斯科飛越田野的烏鴉的啼叫聲，一會兒，在東方天際邊，突然噴射出萬道霞光，一輪紅日從雲層里漸漸顯露出來。於是，圓屋頂，十字架露水遠方和那條小河所有這一切都在陽光下閃爍，這時，皮埃爾感覺到一種從來都沒有經歷過的，全新的，生活的喜悅和力量。
  9. In addition, bare land covered with weed would delay runoff - yielding time, increase infiltrated water, and make soil water move deeper

    裸地坡面覆蓋雜草，能延緩產流時間、增加入滲，並促進土壤水分向深層的運移。
  10. 4 ) soil nutrient of leguminosae also higher than non - vegetation soil ; while organic matter and available k increased, there was no significant change in total n ( it increased slightly ) ; available p and soil ph decreased

    4 ）豆科植物較無植被覆蓋地，土壤養分朝著良性循環轉變。土壤有機質、速效鉀含量提高，全氮含量稍有增加，速效磷含量降低， ph值有所下降；這些變化主要發生在土壤表層。
  11. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  12. Because no tillage and minimum tillage reduce erosion and concentrate nutrients in the surface soil just below the residue cover, micronutrients generally are less often deficient than under conventional tillage

    由於少耕和免耕減少了水土流失，同時把養分富集在植物殘茬覆蓋下的土壤表層，所以，與傳統耕作制相比，少耕和免耕一般不易發生微量元素的缺乏。
  13. In which, it gives inquiring of the construction of deep - water foundations and the usage of floating crane. the construction program of bridge pier foundation will be fixed according to the water depth. if the water depth is less than 4m, pier foundation will adopt the method of building island by earth filling ; if the water depth is more than 4m and there is over burden at river bed, at the same time, it has sufficient bearing capacity to load steel pipe pile, the steel pipe pile platform will be adopted

    其中，對深水基礎的施工及浮吊的使用進行了探討，根據水深確定橋墩基礎的施工方法，對水深不超過四米的橋墩基礎，採用填土築島的方法：對水深大於四米，河床有覆蓋層，且能保證鋼管樁具有足夠的承載力的橋墩，採用鋼管樁平臺；對主河道上河床沒有覆蓋層，鋼管樁無法插打的橋墩，採用浮式平臺。
  14. The surface is the relatively thin covering of soil and unconsolidated rock waste.

    浮土是由土壤和未固結巖屑組成的比較薄的覆蓋層。
  15. By the crop residue input, priming effects of soil irjcrobe will take place, and decomposition and bio - fixation give rise to soil organic matter arid m in the up layer of soil. on the other hand, tillage accelerate ; ; the organic matter mineralization and leads to the quantity of organic matter decreasing in. or 10cm. layer which is about 1 / 2 of soil organic matter under no - tillage

    覆蓋免耕使土壤上層的有機質和氮素穩定增加，這主要來自被激發的微生物繁殖時對碳和氮的生物固定，而傳統耕作則由於耕翻加速了有機物的礦化， 0 - 10cm土層微生物碳含量均一，其數值幾乎為免耕系統的一半。
  16. The depression of the ground are covered with black and fertile soil, where the vegetation is vigorous.

    凹地上覆蓋著一層肥沃的黑土，植物長得茂盛。
  17. In alaska, salmon populations are faltering as melting permafrost pours mud into rivers, burying the gravel the fish need for spawning

    在阿拉斯加， ?魚群的數量正在逐漸減少，因為永久凍土層融化帶入大量的泥土到河中，覆蓋了?魚產卵所需的碎石。
  18. A problem is coating the earth with cement or bitumen on a large scale that would change the horde structural of the microbe in soil particularly in the surface layer of soil

    摘要提出用水泥以及瀝青大規模地覆蓋土壤對于土壤，特別是土壤表層的微生物種群結構將會造成改變的問題。
  19. And then it conceived integrated indexes and computed weight of each index with analytic hierarchy process ( ahp ). moreover it carried out sustainable development assessment for the future, the conclusion is that changchun high - tech industry development area will be elementary sustainable development in 2005, and will get to sustainable development from 2010 to 2015. at last it brought forward suggestions and countermeasures such as rational land exploitation, improving investment environment, establishing financing system, consummating innovation system, strengthening environment safeguard and establishing iso environmental management system

    論文分析了長春高新區「九五」計劃實施前及現狀的土地利用狀況及變化過程，並分析了由此引發的生態系統的轉變以及對植被覆蓋、土壤環境、水土流失、景觀及人口生態結構的影響；論文還構建了指標體系，應用層次分析法確定指標權重，對長春高新區近期、中期及遠期的發展目標進行了預測性的可持續發展評判，評判結果是： 「十五」計劃末，長春高新區處于基本可持續發展狀態， 2010年至2015年將達到可持續發展狀態；最後，論文為長春高新區實現可持續發展的目標提出了如下對策及建議：合理開發土地；改善投資環境；建立融資體系；完善創新體系；加強環境保護；建立is0環境管理體系。
  20. The site overburden layer with the structure of different foundation soil strata and different rigidity of soil layer transforms structure of frequency of ground micro - tremor with different degree

    土層結構不同、土層剛度（值）不同，覆蓋土層對地脈動源頻率結構的改造程度也不一。
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