瘠環 的英文怎麼說

中文拼音 [huán]
瘠環 英文
ji huan
  • : Ⅰ形容詞[書面語]1. (身體瘦弱) lean; thin and weak2. (不肥沃; 瘠薄) barren; poor; lean Ⅱ名詞(姓氏) a surname
  • : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
  1. The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro - algae, soil ph value, soil organic matter soil available phosphorus and soil nitrogen. and then, the author put fertile soil, which included micro - algae, proportionally into sterile samples and cultivated them respectively under illumination condition ( micro - algae can live and reproduce ) and dark condition ( micro - algae will die in some time ). the above indices were measured in 0, 30, 60 and 90days respectively, the analyse of the interrelation between the change of micro - algae ' s number and the changes of soil ph value, soil organic matter, soil available phosphorus and soil nitrogen indicated : ( l ) soil micro - algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro - algae. under dark condition, the micro - algae ' s number declined gradually and went to zero in the end, while under illumination condition, on the 90th day, the micro - algae ' s number of per gramme was 6 - 7 times more than that of the beginning

    本文首先對肥沃土壤與經高溫焚燒后的貧土壤中的微藻數量、土壤ph值、有機質含量、有效磷含量和全氮量進行比較研究,然後將包含微藻的綠化苗圃地肥土按不同比例接種進入貧土樣中,分別在光照條件和黑暗條件下進行培養,在0天、 30天、 60天和90天分別檢測以上指標,比較有光條件和無光條件下,即有藻條件和無藻條件下貧土樣所發生的變化,並分別對微藻數量的變化與土壤ph值、有機質含量、有效磷含量和全氮量的變化之間做相關性分析,以評估肥沃土壤中的微藻接種進入貧土壤后的生長情況以及對貧土壤的改良作用。研究結果表明: ( 1 )土壤微藻對境有較強的適應能力,且光照對其分佈起了決定性的作用。
  2. In the area of watershed between the yangtze river and the huaihe river, there are a series of ecological environmental issues, such as fragile forest ecosystem, frequent drought damage, lake of water resources, serious soil and water loss and contamination by chemical fertilizer, pesticide and plastic membrane

    摘要分析了江淮分水嶺地區存在的森林生態系統脆弱,易旱多災,水資源短缺,土壤貧,礦山開采過度,水土流水嚴重,化肥、農藥、農膜等農業化學品污染嚴重,農村生態境退化等生態境問題。
  3. The paper consists of five sections : ( 1 ) introduction ; ( 2 ) the current situation, advantages and disadvantages of gaoqiao region ' s agricultural economy development ; ( 3 ) the leading industry of gaoqiao region ' s agricultural economy development : grass - animal industry ; ( 4 ) the strategy choice for grass - animal ecological agriculture pattern of gaoqiao region ; ( 5 ) the guarantee measures of gaoqiao region ' s grass - animal ecological agriculture pattern

    高橋試區農業經濟發展的劣勢有: ( 1 )水土流失嚴重,土地薄,生態境惡劣; ( 2 )水資源貧乏,氣候乾旱,極大限制了農作物的生長潛力; ( 3 )文化教育事業落後,科技人才奇缺,群眾文化水平低; ( 4 )經濟基礎薄弱,農業投入嚴重不足; ( 5 )交通不便,信息閉塞,市場狹小,商品經濟落後; ( 6 )產業結構單一,小生產與大市場相悖。
  4. He said one example is genetically changed crops that will grow in extreme temperature, dry conditions or poor soil

    他說轉基因的農作物就是一個例子,這種作物能在極端的溫度,乾燥的境或者是貧的土壤下生長。
  5. He said one example these ( is ) genetically changed crops that will grow in extreme temperatures, dry conditions or poor soil

    他舉例說轉基因穀物可以在極端天氣,乾旱,貧境下生長。
  6. Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production

    摘要綜述了除政策因素外,降低生物柴油生產成本的5種方法:選擇含油率高、再生周期短、適應貧土地及不同氣候條件的新型植物原料;研究新型固體催化劑;引入新工藝(超臨界法和超聲波法) ;使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品(氧氯丙烷、 1 , 3 -丙二醇、丙酮醇等)以及適度生產規模等。
  7. They sustained this dense settlement through raised field agriculture, a technique that improved drainage and recycled nutrients in the poor tropical soil

    他們通過高地農業維持著人口密集的居住地的生存。高地農業技術可以改善貧的熱帶土壤的排水和養分的循利用。
  8. Because the evaporation is great more than rainfall, and the ground water is deep, soil water is always in the step of wane condition and the soil nutrient are also leanness and available nutrients are scantily, which makes the eco - environment of the plateau very fragile

    由於蒸發潛勢遠大於降雨量,而地下水埋藏又很深,致使土壤水分經常處於水分虧缺狀態,加之水土流失嚴重,土壤貧,基礎肥力低,有效養分缺乏,生態境十分惡劣。
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