黃土流 的英文怎麼說

中文拼音 [huángtǔliú]
黃土流 英文
loess flow
  • 黃 : Ⅰ形容詞（像絲瓜花或向日葵花的顏色） yellow Ⅱ名詞1 （指黃河）short for the huanghe river:黃泛區the...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 黃土 : [地質學] loess黃土保持 loess conservation; 黃土地 loessland; 黃土地基 loess foundation; 黃土地貌 ...
  1. In order to elaborate the app licability of osl to loess, especially single aliquot regenerative protocol ( sar ), involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess, such explanations as light bleaching, preheat, anomalous fading, prior - ir exposure were investigated in this paper. for drawing adequate coarse grains from loess, quartz and feldspars, as well as loess, were etched by hydrofluoric acid and fluorosilicic acid. the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains

    本文通過渭河流域全新世黃土的光曬退實驗，地表黃土樣品的d _ e值測定，細顆粒單片的預熱、反常衰退、紅外暴露實驗，說明釋光測年在全新世黃土中應用的可行性及單片再生劑量法（ sar ）在黃土細顆粒中的適用性；為了從黃土中分離出足夠的粗顆粒，進行了純石英和長石的氫氟酸（ hf ）和氟硅酸（ h _ 2sif _ 6 ）溶蝕實驗，黃土粗顆粒石英溶蝕分離實驗；通過細顆粒單片、多片的blsl 、 irsl和post - irosl ，熱釋光，及粗顆粒石英的blsl的年代測定，選擇適于全新世黃土的釋光測年方法，並建立了渭河流域全新世黃土的年代序列。
  2. Application of the c. o. clark unit hydrography to the flux computation in a small scale basin of the loess plateau

    單位線在黃土高原小流域匯水演算中的應用
  3. Caco3 not only affects soil physical and chemical characteristics but also causes co2 change in the air, because caco3 is main components among the total pool of inorganic carbon of soil. this paper systematically summarized and analyzed general development characteristics of soil profile caco3 in loess hill gully area including source, content, forming - condition, distribution and illuviation - depth of caco3, which will have the most important significance for the further studies on global soil and climate change

    碳酸鈣在土壤剖面中淀積的深度和類型是黃土高原土壤發育的重要標志，鈣積層是黃土高原土壤發育環境的歷史信息庫，同時土壤碳酸鈣作為土壤無機碳庫重要組成，它通過溶蝕后再結晶與大氣co _ 2之間進行物質交流來影響全球氣候變化。
  4. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。
  5. Based on the characters of water erosion and rock clasts, the zhangxia loess is possibly a product of aeolian - talus - pluvial process

    張夏黃土下部呈現明顯的水流侵蝕痕跡，中間夾有圍巖碎屑，應屬于風成、坡積、洪積成因的黃土狀土。
  6. The material sources of the zhangxia loess which is exposed on the terraces in zhangxia of changqing region of jinan are complicated, including materials transported by northwestern current and eastern bohai bay current and the local pluvial sediments

    其中出露在河岸階地的濟南市長清區張夏鎮的黃土物質來源復雜，既有西北氣流、東部渤海灣氣流搬運而來的物質，又有當地生成的坡洪積碎屑物質。
  7. The area of sienna in 1997 decreased 103271. 9 hectares than that in 1987, decreased 82. 15 % than before

    變化最小的類型為河流，變化最大的為黃土區域， 1997年的黃土區面積比1987年減少103271 . 9公頃，比原來減少82 . 15 。
  8. Firstly, the main deformation and destruction forms of high loess slope and its deformation and destruction mode are brought forward. the forms are : collapse, slumping, slope wash, slope peeling, sliding mass deformation by collapsibility, and a very little seen form : mudflow

    根據野外調查和前人的研究資料，概括總結出黃土高邊坡有如下幾種破壞形式：滑塌、崩塌、坡面沖刷、坡面剝落掉塊、坡體濕陷變形以及並不多見的泥流。
  9. Through the analyses of characteristics of gully thalweg and soil erosion in upland and gully land, sediment sources in small watershed, sediment yield relationship between upland and gully and ecological functions of vegetation corridor, it is considered that vegetation corridor combined with land preparation measures may block runoff and sediment from upland and reduce the amount of soil erosion in a watershed by 54. 5 % ~ 77. 0 %

    摘要在分析黃土高原地區的溝沿線、溝沿線上下溝間地和溝谷地土壤侵蝕特徵、小流域泥沙來源、坡溝侵蝕產沙關系的基礎上，結合廊道的生態功能和以往的研究結果，認為在溝沿線的上部建立草灌與整地工程措施相結合的植物廊道，來攔蓄阻截溝間地的來水來沙，可使流域的土壤侵蝕量減少54 . 5 % ~ 77 . 0 % 。
  10. It is thought that the holocene original sediments were the result of the aeolation in the area, but the stream action influence the formation of deuterogenic loess

    認為本地區全新世原始沉積物是風成的，但流水作用影響了次生黃土的形成。
  11. Could there exist another possibility for the south boundary of the system as follow : the rainfall infiltrates in the outcrop carbonate - mountain area of western, and moves towards south and deeper along carbonate rocks, then moves upper through the overlain tertiary system ( n ) with a thickness of 400m ( instead of running off to the springs and yellow river through a long approach of least hydraulic gradient ), and then mainly transforms into the horizontal drainage in the loess layer of quaternary, finally drains in lu - botan depres sion

    並且提出，關于對系統南界的認識，是否存在另一可能：即在西部碳酸鹽巖裸露區大氣降水入滲后，沿碳酸鹽巖向南向深部運動，然後，並非在極小的水力坡度驅動下長距離地向東部黃河、泉群徑流排泄，而是通過上覆厚度約400m的第三系向上運動，繼而主要在第四系黃土層中轉為向南水平排泄到鹵泊灘。
  12. ( 2 ) there is stage of soil formation from the evolution of pedogenic environment in the weihe valley during holocene. soil formation shows the law of evolving from warm and wet strong soil formation period to cold and dry dust deposition period ( weak soil formation period ) and to warm and wet strong soil formation period again. the loess - soil sequence is a compound soil sectional system of different kinds of soil evolution under different bio - environment and pedogenic processes

    （ 2 ）通過對全新世渭河流域成壤環境演變問題的討論，揭示了全新世渭河流域土壤的發育具有階段性，表現為由溫濕的強成壤期向冷乾的沉積期（弱成壤期）演變、再向溫濕的強成壤期演變的規律；黃土一古土壤序列是不同生物氣候環境下、不同成壤過程發育的不同土壤類型演替而形成的復合型土壤剖面體系；而且由於冬夏季風環流及其環境效應在空間上的差異，使得復合型土壤剖面體系也存在著南北差異。
  13. In the comprehensive soil erosion control area in the loess plateau, a total of 15 million hectares of land have been treated - - 30 percent of the soil erosion area - - with over 300 million tons less silt flowing into the yellow river every year

    黃土高原水土流失綜合治理區已累計治理1500萬公頃，使30的水土流失面積得到不同程度的治理，年輸入黃河的泥沙減少3億噸以上。
  14. The forest cover will rise from 10. l percent to 27 percent in 30 years in the other three major control regions, namely soil erosion areas in the middle reaches of the yellow river, wind eroded areas on the loess plateau and areas along river sources in qinghai province

    用30年左右的時間，使黃河中游水土流失區、黃土高原風沙區、青海江河源頭三個重點治理區森林覆蓋率由目前的10 1提高到27以上。
  15. The yellow river delta that is one of three most largest estuary delta in china locates an intersect area between the economy circle around the bohai sea and the economy belt of the yellow river valley. natural resources like petroleum, natural gas, bittern and terrestrial heat enrich the yellow river delta area. moreover, the natural endow of wetland resources, marine products resources and land resources abound in this area

    黃河三角洲是我國三大河口三角洲之一，地處環渤海經濟圈和黃河流域經濟帶的交匯點，有豐富的自然資源，如石油、天然氣、鹽鹵、地熱等，同時具有巨大的濕地資源、豐富的海產資源、廣闊的土地資源，土地利用變化劇烈，成為研究土地利用變化的熱點地區之一。
  16. This paper systematkally researched the characteristics of growth and physiology of sophora viciifolia hance ( a kind of natural shrub ) and its effects on the content of soil water, soil nutrieftt and soil physical property. the paper applied some methods and theory of plant ecology, plant physiology, physics of soil and soil chemistry etc. three different age s. viciifolia hance in the different plot were selected, caraganar land and fallow land as a comparison

    本文以陜北黃土區安塞紙坊溝流域內在植被演替中佔有重要地位的天然灌木種（ 6 、 14 、 17齡）狼牙刺（ sopharaviciifoliahance ）為對象，以15齡檸條（ caraganar ）和撂荒地為對照，系統研究了狼牙刺的生長特徵、生理特性，及其生長對土壤水分、土壤養分、土壤物理性狀的影響。
  17. Experimental study on upslope runoff effects on ephemeral gully erosion processes at loessial hillslope

    黃土坡面匯流匯沙對淺溝侵蝕影響的試驗研究
  18. De - farming and restoring forest are principal policies presently for the improving of eco - environment and the reducing of soil and water loss in the loess plateau

    摘要退耕還林還草是目前黃土高原整治生態環境和控制水土流失的主體政策。
  19. The gullies are formed by the processes of infiltration - interflow - collapses. ( 2 ) in the slope with sand - loess, the major factors of water erosion are the rainfall intensity and rainfall amount of annual first rainfall. ( 3 ) in the region, the evolution processes of slope gully system results from alternative actions of sand deposition and water erosion

    （ 1 ）有片沙覆蓋的斜坡小區，徑流量少，但徑流含沙率大，坡溝的形成過程是：垂直滲流坡地潛流崩塌； （ 2 ）在沙黃土斜坡小區，每年春末夏初降雨的強度及降雨量是決定坡面產沙量的關鍵因素； （ 3 ）該區坡溝系統的形成發育是風沙沉積、風蝕與水蝕交替作用的結果。
  20. Arrangement of protective forest system in gulled - hilly loess area based on water balance

    基於水分平衡的黃土區小流域防護林體系高效空間配置
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