風化土 的英文怎麼說
中文拼音 [fēnghuàtǔ]
風化土
英文
saprolite-
It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish
它可以直接使大片森林死亡,農作物枯萎;也會抑制土壤中有機物的分解和氮的固定,淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素,使土壤貧瘠化;還可使湖泊、河流酸化,並溶解土壤和水體底泥中的重金屬進入水中,毒害魚類;加速建築物和文物古跡的腐蝕和風化過程;可能危及人體健康。Therdly because of the influence of terrain and geological structure, arenaceous resources of different regions are different in mu us. sands are mainly from riverway in northwest ; from efflorescent cretaceous sandstone on account of higher topography in the middle part of mu us ; and sands resources are intricated in southeast, mainly including riverway sands, sands blown by the wind and embedded sands under so
3 、毛烏素沙地因受地形和地質構造影響,不同區域的砂質來源情況不盡相同,西北部地區主要為河道沙;中部地區地勢較高,為白堊系基巖裸露而風化成沙;東南部地區沙質來源情況復雜,主要有:現代河道砂、風積沙、也有埋藏在現代壤土之下的出露古沙。Clays are produced by mechanical and chemical weathering and primarily colloidal in size.
粘土是由機械和化學的風化作用形成,主要是膠粒大小。Relationship between the tolerance loss value of soil and the weathering and denudation rate of parent rock
以長江三峽壩區風化花崗巖土壤為例A new technology intensified by magnetic field for leaching of granitoid weathing crust strain amass - type rare earth ores
風化殼淋積型稀土礦磁場強化浸出工藝In this thesis, we research into the geochemical data of the groundwater from the granitoid weathering crust of the fogang granite in baisha region, guangdong province
本文研究了廣東省白沙地區花崗巖風化殼地下水的水化學特徵,特別是與花崗巖的風化過程有關的稀土元素含量及其分佈模式。Our results indicated that ree concentrations of groundwater within the granitoid weathering crust in baisha area are high relative to many groundwater samples within granite weathering crust worldwide
研究結果表明,白沙地區花崗巖風化殼地下水的稀土含量偏高,最高達到114 g / l ,比世界其他地區高1 - 2個數量級。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。As the increase of domestic high - rise buildings, more and more deep foundation trench supporting constructions have come into existence. among the general geographical condition of the urban district in qingdao, most of regions, which mainly consist of strong de composed rocks, are in quite good condition. except for the sandy soil and oozy soil along sea sides. but the development of rock cracks and breaking zones and unstable lamprophyre still exist, so blasting is needed during constructions of foundation trench. blasting have bad influence on the stability of slopes. moreover. the slope - liding has happened for several times, so the engineering project of foundation trench attracts more attention of people
隨著國內高層建築的發展,深基坑支護工程越來越多,綜合青島市區的地質狀況,除海邊有砂性土及淤泥軟土外,大部分地域巖土條件相對較好,多以強風化巖為主,但巖石裂隙發育,間或有斷裂帶和穩定性極差的煌斑巖穿插其中,基坑施工時需要爆破施工,對邊坡的穩定造成了不利影響,加之連續出現的幾次滑坡失穩事件,基坑支護工程越來越引起了各方面的重視。In memory of rev. pommerenke who donated a piece of land at siu tao fung shan, the pommerenke lectureship of christianity and chinese culture has been set up since 1998 by the trustees of the college
為紀念已故之萬倫牧師捐出小道風山土地,崇基學院校董會由一九九八年起,撥款設立萬倫基督教與中國文化講師教席。There the soil is from weathered limestone soil or loess.
那裡的土壤是經過風化作用的石灰石土壤或黃土。The surface soil and the unconsolidated mantle rock beneath it form only a thin venner.
地表土壤和它下面的未固結的風化層只是形成一個很薄的蓋層。Evidence of the early stage weathering pedogenesis by carbonate rock
碳酸鹽巖早期風化成土作用的證據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。The rock has weathered away into soil.
巖石經雨蝕風化而變成泥土。It is suggested that the impervious wall combined with curtain grouting should be taken as the main vertical impervious body for seepage control, and that the full use of slope wash and fully weathered zone as horizontal impervious blanket should be taken to reduce work load for seepage control
建議採取截滲墻結合帷幕灌漿作垂直防滲體為主的防滲措施,同時充分利用坡積土和全風化帶作為水平防滲鋪蓋以減少防滲處理工作量。Contrasting stone coal to the soil developed from it and water to water leached from stone coal shows that slight fluorine pollution of surface water and plant resulted from weathering of stone coal and leaching
摘要通過對比典型剖面上的石煤及其風化發育的土壤的氟含量、流經石煤層的水與不經過石煤層的水的氟含量,研究石煤風化、淋溶時氟對土壤、地表水和農作物的影響。( 4 ) we defined ssee factor ( surficial soil element enrichment factor ) and wpem factor ( weathering profile element mobility factor ), and applied them to evaluate the degree of effects of black shales weathering on soil, water bodies and their sediments composition
( 4 )提出了表土層元素富集因子和風化剖面元素遷出因子,用於估算巖石風化對水體及其沉積物、土壤的化學組成影響的程度。But in contrast of the research of chemical weathering of other rocks, such as granites and basalts, the research of chemical weathering of black shales both in width and depth still remains much to advance. after reading and investigating widely, we selected lower - cambrian black shales and their weathering profiles in hunan province as research objects of our work at first. then, based on field investigation of weathering status of lower - cambrian black shales and it ' s relationship with soil composition and human activities in hunan, we studied changes of chemical composition such as major and trace elements before and after weathering of black shales by comparison
根據文獻閱讀和野外調查,本文選擇了湖南安化、桃江、望城等地下寒武統黑色頁巖及有關風化剖面作為研究對象,並在查明湖南下寒武統黑色頁巖的風化現狀及其與土壤組成、人類活動的關系的基礎上,對比研究了黑色頁巖風化前後主量和微量元素等化學組成的變化,探討了元素的富集和遷移轉化機制以及黑色頁巖風化與區域環境質量的關系,得出了如下幾點主要成果和認識: ( 1 ) ti是黑色頁巖風化過程中的「不活動」元素,可作為參照元素,對其它元素的活動性進行質量平衡計算。The waters scoured off the soft, windblown soil near the surface and eventually reached bedrock, the hardened lava of the columbia plateau
洪水沖洗掉地表附近松軟的風化土,最終到達了巖床,哥倫比亞高原上堅硬的火山巖。分享友人