表層土壤 的英文怎麼說

中文拼音 [biǎocéngtǔrǎng]
表層土壤 英文
topsoil
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  • 壤 : 名詞1. （土壤） soil 2. （地） earth 3. （地區） area 4. （姓氏） a surname
  • 表層 : skin layer; superficial coat; veneer; surface; sexine; bloom; supercrust; surface layer表層沉積 [...
  1. After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil

    實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明：土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層，與紫色土類型和利用方式無關；三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層，表明紫色土表層的有機質和通氣性優于亞表層，適宜於這三大類微生物生長；溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢，唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層，而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。
  2. Early diagenesis in surface soil of yellow river delta

    黃河三角洲表層土壤早期成巖作用初探
  3. The estimation methods of water requirement, and determination of basal crop coefficient and soil evaporation coefficient under the controlled alternative furrow irrigation in summer maize were studied and verified in the fifth chapter

    （ 4 ）夏玉米田棵間土壤蒸發主要發生在灌后幾天表層土壤比較濕潤的時期內，其中表層土壤含水率和葉面積指數是影響土面蒸發的兩個基本因素。
  4. 3 analyzing particle size of the wind - blown sediment and surface soil indicate that the former in 0. 02mm - 0. 2mm occupy about 40 % and 55 % of sloping field and shoaly land of bashang, which shows that bashang is the erosion and desertification region or the latency. 4 the search of decreasing effect of wood strap indicates that in lower wind speed the effect is distinct

    3風蝕物及表層土壤顆粒粒徑分析表明，地表200cm高度內風蝕物粒徑在0 . 02mm 0 . 2mm之間；壩上地區坡梁地與灘地該粒徑范圍顆粒分別佔40和55左右，說明壩上地區是風蝕沙化或潛在風蝕沙化地區。
  5. Under flood conditions, great amounts of topsoil are washed to receiving streams.

    在洪水泛濫時，大量表層土壤被沖刷到承受的水流中。
  6. Magnetic characteristics of xuzhou urban topsoils

    徐州城市表層土壤的磁學特徵
  7. Magnetic response of metals in xuzhou urban topsoil

    徐州城市表層土壤中金屬元素的磁學響應
  8. Further confusing the issue were high surface soil tests for k

    表層土壤鉀測試值高又進一步混淆了問題。
  9. Since deep plowing of well - drained soils quickly decomposes organic matters in top soils, additional organic matters are needed

    因深翻排水良好的土壤使表層土壤中有機質迅速分解，所以必須施用有機質。
  10. Relationship between water character and yield component under different distribution patterns of winter wheat population

    毛烏素沙地不同林齡沙柳表層土壤水分空間異質性
  11. Since cotton is a tap rooted plant and dependent on sub - soil k, especially in mid - season, k supplies had become inadequate regardless of surface soil k levels

    因棉花為直根作物並依賴底土鉀，尤其是生育中期，無論表層土壤鉀水平如何，供鉀也會變得不足。
  12. Soil water resources and afforestation in loess plateau

    黃土高原表層土壤稀土元素含量及分佈特徵研究
  13. In australia, a shallow soil is scraped into ridges on which trees are planted.

    在澳大利亞把表層土壤作壟，果樹栽在壟上。
  14. This topsoil tends to wash away

    表層土壤要沖掉了。
  15. Control technologies on urban surface runoff pollution in china

    徐州城市表層土壤中硫與磁學參數的關系及其環境意義
  16. Environmental geochemistry of vanadium in topsoil in panzhihua mining area

    攀枝花礦區表層土壤中釩的環境地球化學研究
  17. The technique of water conservation in gneiss area of tai - hang mountain : on the facet of water conservation measure, four sorts of water conservation measures can all improve the soil water content. the result of straw mulch is best, using water holding agent in soil and plastic mulch are better, stone mulch is worse. four sorts of water conservation measures all improve the physical character of surface layer soil

    太行山片麻巖區保水技術：在保水措施方面：四種保水措施均能提高土壤含水量，秸稈覆蓋的效果最好，土施保水劑和地膜覆蓋的效果其次，石塊覆蓋的效果較差；四種保水措施使表層土壤的物理性狀均有一定改善，使土壤容重降低、孔隙度和土壤飽和含水量增加。
  18. Accumulation and identification of heavy metals in xuzhou urban topsoil

    徐州城市表層土壤中重金屬元素的富積特徵與來源識別
  19. The bats can simulate well on the temperature value and change of surface soil and subsurface soil, which can reflect very well that the daily changed temperature of subsurface is obviously lower than that of surface. snowmelt is considered in the computing of mohe ' s soil temperature, which decrease the effect of forced comeback. in the result, the characteristics of temperature stablization in snowmelt time span and the variety trend in other time span also are well simulated

    2 ） bats模式對漠河表層和次表層土壤溫度的變化趨勢及量值有很好的模擬性能，能夠反映出次表層土壤比表層土壤溫度日變化幅度明顯減小的特點，在對漠河融雪期間土壤溫度的計算過程中，考慮了雪融，減小了強迫恢復作用，對融雪期間溫度穩定少變的特點也能很好地模擬出來。
  20. The community productivity, structure and succession are significantly influenced by global climate changes. this study focused on soil respiration rate of stipa baicalensis grassland by using dynamic infrared gas absorbed method. we analyzed diurnal pattern of soil respiration rate and the influences of surface soil temperature and water content for this parameter, then compared the differences between day and night soil respiration rates, and explored the correlations between aboveground and underground biomass with the soil respiration

    溫帶的半乾旱、半濕潤區草甸草原屬于過渡氣候影響下形成的植被類型，對環境氣候條件變化十分敏感，為了揭示半乾旱、半濕潤區草甸草原生態系統土壤碳素釋放規律及其對主要環境因子的響應，本研究採用動態室紅外氣體吸收法測定松嫩草甸草原典型群落? ?貝加爾針茅群落土壤呼吸速率，分析了土壤呼吸速率日變化規律及表層土壤溫度和含水量對土壤呼吸速率日變化的影響，比較了土壤呼吸速率的晝夜差異，探討了地上生物量和地下生物量與土壤呼吸速率之間的相關關系。
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