砂質漠 的英文怎麼說
中文拼音 [shāzhímò]
砂質漠
英文
areg-
Erg sandy desert
砂質荒漠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) 。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。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。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。Took sha - zhuyu and east shore of qing - hai lake as the examples and based on the mass of field survey and soil analyse, took comparative method, we carried through the researches on the causes of the desertification, the origin of sandy desertificational land substance, the development diversification and difference of soil characteristic in process of manual and spontaneous vegetation recovery in high frigid regions and make out the taxonomy of desertificational land in high frigid region of china. the result obtained are summarized as follows : 1. the development of the desertificational land in high frigid regions is caused by the manual and spontaneous factors
論文首次對高寒地區的砂質荒漠化土壤進行系統研究,以沙珠玉和青海湖東岸為例,通過野外考察和土壤樣品室內化驗,採用對比分析的研究方法,對中國高寒地區荒漠化的成因和研究區砂質荒漠化土地的形成演變,土壤發生特性、人工植被恢復和自然植被恢復過程中土壤的發育差異和性質變化進行系統研究,並用系統分類體系對研究區土壤進行類型劃分,得到主要結論如下: 1 、高寒地區荒漠化的發生發展是在自然因素和人為因素共同作用下進行的,沙珠玉地區風沙土是就地產生的,青海湖東岸地區風沙土主要是由風從湖的西岸搬運而來的,兩地區砂質荒漠化發展仍然十分嚴重。Especially the desertification of northern china ( sandy desertification ) and the overwhelming majority of its size and rapid development concern
尤其是我國北方的沙漠化(砂質荒漠化)以其面積廣大和發展迅速而引人關注。Sandy desert soils
砂質漠境土Layers of carbonate limestones, silty mudstones, quartz sand and solidified lava show that within the past 600 million years, this area was a warm, shallow sea, then a muddy swamp, then a vast desert of shimmering hot dunes, then a glacial ice sheet, then a shallow sea once again
層層的碳酸石灰巖、粉砂質泥巖、石英砂和凝固的熔巖,顯示在過去六億年間,這個區域曾經是溫暖的淺海,接著依序變成泥濘的沼澤、擁有炙熱沙丘的廣闊沙漠,然後是冰川,后來又再度成為淺海。分享友人