沙質沙漠 的英文怎麼說

中文拼音 [shāzhíshāmò]
沙質沙漠 英文
[阿拉伯] areg; erg
  • 沙 : 沙動詞[方言] （搖動以清除雜物） shake
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 漠 : Ⅰ名詞（沙漠） desert Ⅱ形容詞（冷淡; 不經心） indifferent; unconcerned; aloof; cold
  • 沙質 : sandiness
  • 沙漠 : [地質學] desert; areg; [法國] koum; [印度] thar; erem ; eremo 沙漠草原 desert steppe; 沙漠沉積 de...
  1. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。
  2. There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared

    實驗研究的兩種菊科（ compositae ）植物（準噶爾沙蒿（ artemisiasongaricaschrenk ）和沙漠絹蒿（ seriphidiumsantolinum （ schrenk ） poljak . ） ） ，形態解剖方面的變化表現為：隨日齡增加，根長/株高比值日益增大；根系逐漸發達；體積與葉面積比逐漸增大；表皮細胞體積變小；角質層增厚；根外部出現加厚的木栓層；氣孔下陷；葉、莖部的表皮毛密布，柵欄組織日益發達；而細胞間隙日漸變小；海綿組織逐漸消失；葉面結構常為典型旱生結構? ?等葉面；晶細胞及纖維細胞數目增多；輸導組織、機械組織日漸發達；具有維管束鞘等等。
  3. Almost nothing grows on their land ; their animals graze on desert bushes ; the people mine ingots of salt from what looks like shimmering pack ice

    他們的土地幾乎寸草不生；他們在沙漠荒野里放牧牲口；人們從看上去像閃光的浮冰的物質中提煉鹽塊。
  4. The sahara ' s topographical features include shallow basins, large oasis depressions, serirs or regs ( gravel - covered plains ), plateaus, mountains, sand sheets, dunes and sand seas ( ergs )

    撒哈拉沙漠地形特點包括：淺的盆地、大的蕭條的綠洲、砂礫性沙漠或礫質沙漠（碎石覆蓋的平原） 、高原、沙席（小沙原） ，沙丘和沙海（砂質沙漠） 。
  5. The main purpose of this discussion is to det ermine the appropriate roadbed earthfill height according to the degree of sandburry, windblown sand drift test, wind tunnel test, windbed stability, road economy and traffic accident analysis. the appropriate roadbed earthfill height is one of vital factors in preventing highways from the harm of sand

    本課題研究的主要目的是沙漠公路在地理地貌、植被地質、沙源、風速強度等因素的影響下對公路形成的沙埋和風蝕危害，結合公路沙埋、風沙流實驗、風洞實驗、路基穩定性、道路經濟性、交通事故分析，確定路基的合理填土高度。
  6. The aeolian sand is the most abundant material in the desert area, but its engineering property is so bad that it has not been used widely as paving material

    風積沙是沙漠地區最為豐富的物質，由於其工程性質較差，目前仍未被廣泛用作沙漠地區公路的鋪築材料。
  7. Lt covers 337, 000 km ~ 2 with the heature of flowing in recent years, the focus area of oil exploit is moved to west chira accordingly, the engineering characteristics of desert sand are drawing more and more ettenti of civil engineer

    塔克拉瑪干沙漠是我國面積最大的沙漠（ 33 . 7萬平方公里） ，也是世界上第二大流動性沙漠。近年來，隨著石油開發重點的西移，沙漠砂的巖土性質引起了廣大工程技術人員的注意。
  8. The environmental geological problems existing in the west liaohe plain involve desertification of land, salinization of soil, declining of groundwater level and pollution of groundwater

    摘要西遼河平原的環境地質問題主要表現為土地沙漠化、土壤鹽漬化、區域地下水位元下降及地下水污染等。
  9. From the point of sustainable development, the authors propose a comprehensive solution, which is to scientifically reform the desertified land, to strengthen the developing and using of salinized land, to reasonably use the groundwater resources and to cut off the pollution sources

    從可持續發展的角度，提出了環境地質問題的整治需科學合理地對沙漠化土地進行治理；加強鹽漬土地的開發利用；合理利用地下水資源及切斷污染源。
  10. These are the material bases for the desertization expanding that the earth ' s surface vegetation is sparsed, made - ups material is loosed, and sand source is abundant in mu us region

    毛烏素地區地表植被稀疏、組成物質鬆散、沙源豐富，為沙漠化擴展提供了物質基礎；而乾旱多風的氣候是沙漠化發展的重要因素之一。
  11. This problem is very important for the determining the direction of regional economic development, the evaluation of the environmental quality, the macro - policy - making and measure - selection of desertization control

    這對確定區域經濟發展方向、環境質量評估、制定防治沙漠化宏觀政策及治理技術措施等有重要意義。
  12. Changes of soil physical and chemical properties in sandy desertification on the duolun prairie

    多倫草原土壤理化性質在沙漠化過程中的變化
  13. According to the configuration and ecotope of the earths surface, the coverage of vegetation, occupation ratio of bare sandy land and the soil texture were selected as evaluation indexes by using the field investigation data

    利用外業調查數據，依據地表形態和生態狀況的變化，確定了植被蓋度、裸沙地佔地百分比和土壤質地3項評價指標，並建立了基於遙感的科爾沁沙質荒漠化評價指標體系，其中裸沙地佔地百分比用混合像元分解的方法獲得。
  14. Such problems as desertification 、 soil erosion 、 debris flow 、 landslide 、 garbage disposal 、 changes in ecological and geological environment 、 dispose of radioactive nuke rubbish 、 protection of famous historic and cultural sites are researched in this field

    研究課題涉及到：沙漠化、水土流失、泥石流、滑坡、垃圾填埋處理、生態和地質環境的變遷、放射性核廢料的處理和名勝古跡的保護等。
  15. Biological mechanism of sandy desertification in grassland reclamation area in north china

    草原農墾區土地沙質荒漠化過程的生物學機制
  16. Comparison of micro - meteorological characteristics of different stage in desertification area erduosi

    鄂爾多斯地區兩種典型沙質荒漠化階段微氣象特徵的比較研究
  17. 2. because of feeble development, sandy desertificational land in high frigid regions of china have higher sands content, which is commonly larger than 750g / kg, there are also higher sio2 correspondingly, which is commonly larger than 600g / kg

    2 、高寒地區沙質荒漠化土地，由於土壤發育微弱，土壤砂粒含量較高，一般含量均大於750g kg ，相應的sio _ 2含量也較高，含量均在600g kg以上。
  18. Red desert soil a type of coarse soil rich in salts and lime but poor in humus, formed in hot deserts

    紅漠土：一種粗糙的富含鹽類、石灰，但缺少腐殖質的土壤，多在熱帶沙漠中形成。
  19. Accordingly, the dune deposits of the section since 150 ka bp can be divided into 38 alternate evolvement processes of desert and inter - desert periods, which accord with the sedimentary cycles of the section. it is further suggested from now climate in the area that the 38 inter - succession processes of dune deposits and fluvio - lacustrine or palaeosols in past 150 ka actually result from the alternate evolvement of the ancient east asia winter and summer monsoons in the mu us desert during the long geologic times

    從這一認識出發，將米浪溝灣剖面150ka以來的砂丘堆積劃分為38個旋迴的沙漠期與間沙漠期交替演化過程，並認為，該剖面自那時以來發生的38個砂丘沉積與河湖相或古土壤的演替過程，實際上是這一長期地質時代毛烏素沙漠受東亞冬夏古代季風影響交替演化所致。
  20. In terms of geological engineering this paper has preliminarily analyzed all kinds of damages causing the north district rock caves to destroy seriously, including wind erosion, rain erosion, flood erodes, crack development, rock body collapsing and environmental desertification

    本文從地質工程的角度，初步分析了造成北區石窟嚴重破壞的各類病害，包括風蝕、雨蝕、洪水沖刷、裂隙發育、巖體坍塌及環境沙漠化等。
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