acid soils 中文意思是什麼

acid soils 解釋
酸性土
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  • soils : 土壤
  1. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明： 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化：隨海拔高度上升，機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒，海拔1600m以下出現粘化層；土壤有機質豐富，表層有機碳含量一般在20g kg以上，有機碳含量隨海拔高度升高而相應增加，海拔3500 3700m的灌叢草甸植被下有機碳含量最高；土壤呈酸性或微酸性，並隨海拔上升， ph值略微降低，酸性增強，海拔2700m以上的土壤多呈鹽基不飽和狀態，表明土壤淋溶作用較強， ph值和鹽基飽和度呈極顯著正相關；土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定，土體中sio _ 2含量較高， cao含量較少， sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ，礦質元素含量的順序依次為： sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  2. Effects of simulated acid rain on exchangeable cation transplant and acidifying potential in litchi orchard soils

    模擬酸雨對果園土壤交換性陽離子遷移及其對土壤酸化的影響
  3. Adsorption of benzoic acid on loess soils affected by surfactant

    表面活性劑對黃土吸附苯甲酸的影響
  4. Strongly acid peat soils are often low in calcium.

    強酸性泥炭土常呈現低鈣。
  5. In acidic soils, its toxicity is considered to be the most limiting factor for plant productivity. based on an estimate of the world ' s potentially arable land resources, it has been estimated that most of the cultivable area ( 78. 4 % ) is composed of acid soils

    全世界有39 . 5億hm ~ 2酸性土壤，其中可耕土壤面積為1 . 79億hm ~ 2 ，如何解決酸性土壤的鋁害問題已經是不容忽視的一項重要課題。
  6. Garden hydrangeas ' color can be manipulated with the soil ph. pink and red hydrangeas turn blue and purple in acid soils, while blue hydrangeas turn pink in alkaline soils

    庭院八仙花屬的顏色可以指示土壤的ph值。粉紅和紅色的八仙花轉變成藍色和紫色表示酸性土壤，而藍色的八仙花轉變成粉紅色則表示在堿性土壤。
  7. It makes soils more acid since cations ( e. g. potassium and magnesium ) are replaced by hydrogen ions

    它能使土壤酸化，因為陽離子（如鉀離子和鎂離子）被氫離子所代替。
  8. Molybdenum deficiency is found when legumes are grown on acid soils.

    在酸性土壤上種植豆科作物時常發現缺鉬。
  9. Analysis on the buffer action of three kinds of different soils from two soil types of the north of henan, showed that the order of buffer action acid and alkali of three kinds of different soils was as following : chao soil with high fertility > lime drab soil > chao soil

    摘要對豫北地區的2個土類3種不同土壤的緩沖性能進行分析研究，結果表明：供試土壤對酸、堿的緩沖性強弱依次為高肥潮土褐土潮土。
  10. The country has made substantial scientific and technological achievements in some research areas, such as the comprehensive prevention and control of beijing ' s environmental pollution, the capacity of the atmospheric environment, the background value and environmental capacity of the nation ' s major soils, acid deposition and its impact and control, the forecasting and monitoring of the influence of the changes in the global climate and corresponding countermeasures, the depollution of coal, and the control of air pollution

    國家取得了北京市環境污染綜合防治研究、大氣環境容量研究、全國主要土壤背景值與環境容量研究、酸沉降及其影響和控制技術研究、全球氣候變化預測影響和對策研究、潔凈煤及大氣污染控制技術研究等一大批科技成果。
  11. Acid brown forest soils

    酸性棕色森林土
  12. Acid soils often contain substantial concentrations of iron and aluminum hydroxides

    酸性土壤富含鐵和鋁的氫氧化物。
  13. The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture ( horizontal and vertical ), reuse of groundwater, ground - water hydraulics, ( geo ) hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions

    描述:探討農業耕地的水澇問題；灌溉導致的土壤鹽堿化；地表灌溉；地下水的再利用；地下水水力學；雨水與水流失的關系；淺地表排水；土壤開墾及水澇，酸性，堿性土壤的改良；片段線形回歸和累積頻數分佈的統計分析等。
  14. Sugar-factory lime sludge had a more favorable influence in improving the structure of acid soils than limestone.

    糖廠的石灰沉渣，在改良酸性土結構上，要比石灰石粉有更良好的影響。
  15. Magnesium deficiency most commonly occurs in acid, sandy soils in areas of moderate to high rainfall.

    缺鎂常常發生在中雨量或高雨量區的酸性砂質土。
  16. In addition to nutritional factors, the productivity of many acid soils is affected by physical factors that include low water holding capacity （ oxisols, spodosols ） and susceptibility to crusting, erosion and especially compaction （ oxisols, ultisols ）

    除了養分因素外，許多酸性土壤的生產力受物理因素的影響，包括持水量低（氧化土，灰化土）和對結殼、侵蝕及特別是壓實（氧化土、老成土）敏感。
  17. Most of these areas are occupied by acid tropical upland soils

    這些地區大多數為酸性熱帶旱地土壤。
  18. Sulfuric acid in soils may lead to the formation of ammonium sulfate, which causes the release of toxic aluminum and heavy metal ions that inhibit metabolic activity

    土壤中的硫酸導致硫酸胺土壤的形成，進而導致可抑制生物新陳代謝活力的有毒的鋁和重金屬離子的釋放。
  19. Approximately 20 million ha are presently abandoned to savanna on predominantly poor nutrient status acid soils

    到目前為止，約有2000萬公頃已棄荒成為熱帶稀樹草原，土壤酸性，養分極少。
  20. Soil quality. soils, sediments. total solubilizing by acid attack

    土質.土壤，沉積物.用酸侵蝕法測定總溶液化性
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