砂漠 的英文怎麼說
中文拼音 [shāmò]
砂漠
英文
sandy desert-
This paper, based on the grain - size analysis and the comparative result of the mz - o scatter gram of ancient aeolian sands in milanggouwan section with the modern dunes in mu us desert, holds that fossil eolian dunes are a proxy of the dune activation, and be regarded as " desert process ", while the overlying fluvio - lacustrine and palaeosols on the dunes are regarded as inter - desert process
文中根據粒度分析及古今砂丘的mz ?散點圖比較結果,認為古代風成砂丘特別是古流動砂丘是砂丘活化的體現,視為「沙漠期」 ,而砂丘上覆的河湖相沉積與古土壤發育則可視為「間沙漠期」 。Erg sandy desert
砂質荒漠This work carries out a temporal - spatial analysis and comparison in facial pattern, grain - size, and susceptibility of the sediments of the hunshandake sandy land ( hsl ) on the basis of studies of more than fifty geological sections, a number of samples collected from surface sands as well as results derived from previous studies. the preliminary results of this work provide new environmental information of the working area, which makes it possible to have a brief discussion about the evolution of the hsl since the late glacial epoch. this work can be summarized as the followings
晚冰期,渾善達克沙地全面擴張,達到了沙漠化最大規模,剖面中的古風成砂是最直接的證據,此時氣候乾冷;全新世早中期,渾善達克沙地成壤比較好,是一個大面積成壤期,相當于全新世適宜期,此時氣候暖濕;全新世晚期,渾善達克沙地沙漠化正過程加強,在沙地各剖面上普遍發育風沙沉積,氣溫較乾冷;目前:渾善達克沙地為另一成壤期,成壤作用相對于適宜期較差,氣候乾暖。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) 。Situated at the southeast of the mu us desert, ordos plateau, the milanggouwan stratigraphical section in the salawusu river valley keeps a record of 38 sedimentary cycles of alternate evolution of the aeolian dune layers with the fluvio - lacustrine facies and palaeosols since 150 ka bp
位於鄂爾多斯高原毛烏素沙漠東南邊緣的薩拉烏蘇河流域的米浪溝灣剖面,記錄了150kabp以來的38個風成的砂丘砂與河湖相和古土壤交替演化的沉積旋迴。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。By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole
通過非飽和沙漠砂直剪試驗和常規三軸剪切試驗,研究了含水量和干密度對非飽和砂強度的影響,建立了這種砂的強度準則。通過非飽和沙漠砂邊坡室內平面應變試驗,分析了沙漠井場浸法施工中就基坑壁的破壞方式,推導出了基坑和樁孔容許開挖深度的計算公式。The mechanism about seed actual reproduction and artificial restoration under disturbance was investigated by using systematic sampling in the typical area of reaumuria soongorica population at mid - young age in desert grassland region, according to two similar habitate involved five different disturbance characteristics
摘要2003年7 10月,選擇黃土丘陵區荒漠草原地帶兩個相似生境、 5個不同干擾特徵的中幼齡紅砂種群更新恢復類型區為研究物件,採用系統取樣法或樣行法,開展了干擾條件下的紅砂種群種子更新與恢復機理的初步研究。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。Affects of over grazing and enclosure on desert vegetation succession of reaumuria soongrica
過牧及封育對紅砂荒漠植被演替的影響Spatial distribution characteristics of stable carbon isotope compositions in desert plant reaumuria soongorica
荒漠植物紅砂穩定碳同位素組成的空間分佈特徵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。Average precipitation and temperature are the major factors determining whether a particular land area is a desert, grassland, or forest ( climate - and - vegetation principle )
平均降雨量及溫度是決定,對一個特定土地范圍,形成砂漠、草原、或森林的主要因素。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。Taking foundation constructions of buildings and storage tanks in maowushu desert region as examples, this paper presents the construction method, key matters and implementation effectiveness of the process
文章以毛烏素沙漠地帶建築物和儲罐基礎施工為例,介紹了水墜砂技術的具體施工方法、注意事項和實施效果。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。Based on the strength of the taklamakan desert sand, through the strength test of non - saturated sample and the static loading tesd of model pile in laborary, the paper studied the influence of the strength of desert sand on the design and construction of foundation engineering in taklamakan
本文擬以塔克拉瑪干沙漠砂的強度為出發點,通過非飽和砂的強度試驗和沙漠場地樁基的室內模型試驗,研究其對沙漠地區基礎工程設計和施工的影響。These influence influeoce the excavation in desert, shallow foundation design on natural ground, and the bearing capaceity of pile foundation
沙漠砂的這種強度特徵全面影響著沙漠場地基坑、樁孔的開挖、天然淺基礎設計和樁基承載能力。分享友人