nitrogen distribution 中文意思是什麼

nitrogen distribution 解釋
氮質分佈, 氮質分配
  • nitrogen : n 【化學】氮，氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. Abstract : in ureide - transporting legumes ， ureides ( allantoin and allantoic acid ) are major transportform of biological fixed nitrogen. the distribution ， properties ， structure and regulation of plant allantoinase were reviewed in detail. the advances in the recent studies on allantoate amidohydrolase and ureidoglycolate amidohydrolase were introduced. and the works desired to be done were pointed out

    文摘:全面綜述植物酰脲降解代謝酶的研究現況，概述植物尿囊素酶的分佈、性質、結構，以及調節控制，並簡介植物尿囊酸酰胺水解酶和脲基乙醇酸酰胺水解酶的研究近況，同時指出待研究的方向。
  2. Absorption and distribution of different form of nitrogen in sweet pepper

    甜椒對不同形態氮素的吸收和分配
  3. We investigated the distribution of the heterotrophic bacteria with the epifluorescence microscope and measured the bacterial production with the tritiated tymicline incorporation method, and we investigated the correlation between the heterotrophic bacteria and chlorophyll, inorganic nitrogen also. there was distinct spatial distribution of the bacterial biomass in the east china sea and the yellow sea during fall and spring

    本文利用表面熒光顯微鏡觀測計數法和[甲基- 3h ]胸腺嘧啶示蹤法對春秋兩季節我國黃、東海異養細菌生態分佈及其生產力狀況，以及異養細菌及其生產力與浮游植物葉綠素、無機氮鹽之間的關系進行了研究。
  4. 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瘠土壤中的微藻數量、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瘠土樣中，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瘠土樣所發生的變化，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瘠土壤后的生長情況以及對貧瘠土壤的改良作用。研究結果表明： （ 1 ）土壤微藻對環境有較強的適應能力，且光照對其分佈起了決定性的作用。
  5. Determination of the pore size distribution and the specific surface area of mesoporous solids by means of nitrogen sorption - method of barrett, joyner and halenda

    氮吸附法測定中孔性固體的孔徑分佈和表面積比. barret
  6. Distribution and release of nitrogen and phosphorus in typical river sediments, pearl river delta region, china

    珠江流域河網底泥的氮磷污染特徵及釋放機理
  7. Test method for barium film distribution of nitrogen - doped getter

    摻氮吸氣劑鋇膜分佈測試方法
  8. Effect of mineral nitrogen distribution in soil profiles on nitrogen use of flue - cured tobacco under different application methods

    不同施肥土壤中無機氮的垂直分佈及烤煙對氮素的利用
  9. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況，研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律，利用annagnps模型估算流域農業非點源污染物輸入負荷，並在千島湖內設點采樣，對水質理化指標和浮游植物群落進行系統的研究，得出以下結論： 1989 2001年間的水環境常規監測資料統計分析表明，有毒物質和重金屬濃度長期在監測下限內， no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類標準，但湖泊水庫特定項目tn和tp濃度分別為超類和類，呈嚴重超標狀況，湖區主要污染因子是將導致富營養化的物質tn和tp 。
  10. Optimum distribution of nitrogen fertilizer in semi - dwarf japonica rice for late - planted mono cropping

    半矮生型單季晚粳稻氮肥運籌分配效應試驗研究
  11. On average, soil organic matter, total nitrogen, effective phosphorus content improved, but measures of the effective potassium in the soil, and the ph - value, worsened. from the perspective of spatial distribution, however, there is significant variation in soil fertility and quality

    這樣，樣本的社會經濟數據也具有可比性；這樣我們就可以討論社會經濟及政策因素和土壤肥力變化之間可能的因果對應關系。
  12. The condensates that derived from coals in yangtake structure are mixed by the light compositions from triassic lacustrine mudstones. the distribution of nitrogen compositions proved that differences of compositional fractionation existed in different carrier systems from source to trap in kuche basin

    利用含氮化合物的運移分餾效應證實了，在從源巖到圈閉的聚集過程中，庫車盆地不同的輸導系統產生的原油分餾效應的差異。
  13. Industry, agriculture and life pollutions are sources of total nitrogen, so their distribution and pollution intensity are important influence factors of total nitrogen ' s varying law

    工業、農業和生活污染源是總氮的主要來源，其分佈和污染強度是總氮濃度變化規律的重要影響因素。
  14. The isotropy analyses indicated : the nitrogen density spatial distribution of 0 ~ 100cm depth displays the interest of moderate spatial correlation, its theory pattern accords with the exponential model. but the nitrogen density spatial distribution of 0 ~ 30cm depth is the very feeble correlation, its theory pattern accords with the spherical model

    各向同性空間分析結果表明， 0 100cm土壤層厚度氮密度的空間分佈體現為中等的空間相關性，它的理論模型符合指數模型；而0 30cm土壤層氮密度的空間分佈則體現為很弱的相關性，它的理論模型符合球狀模型。
  15. Study on the dynamic changes of the distribution and accumulation of nitrogen in different plant parts of wheat

    小麥不同器官氮素累積分佈動態規律的研究
  16. In this paper, we summarized the research advances on the gene cloning, sequence and structure analysis, function identification, expression and regulation of the ion transporting proteins and focused on their functions in the process of absorption, distribution and translocation of nitrogen, phosphorus, potassium and other nutrients in arabidopsis thaliana

    文中綜述了擬南芥中養分離子轉運蛋白在基因克隆、序列與結構分析、功能鑒定、表達與調控方面的研究進展，其中著重討論了這些轉運蛋白在氮、磷和鉀等營養元素吸收、運輸、分配中的作用。
  17. Spatial distribution characteristics and ecological effects of carbon and nitrogen of soil in huolin river catchment wetland

    霍林河流域濕地土壤碳氮空間分佈特徵及生態效應
  18. Based on the field experiments of nitrogen fertilizer and irrigation applied to winter wheat, the effects of quantity on its dynamic distribution of soil no3 ( superscript - ) - n were studied

    摘要通過田間試驗，研究了不同氮肥用量和灌水量情況下土壤中硝態氮的動態分佈。
  19. Abstract : mainly reviewed distribution of organic nitrogen, early diagenesis ( such as counteract - eutrophication, nitrification / denitrification et al. ), the controlling factors of nitrogen cycling ; and the relationship between nitrogen and ecological system in sediments in recent years, which may contribute to research the nitrogen marine biogeochemical process

    文摘:主要闡述海洋沉積物中氮的存在形式與分佈、氮的早期成巖和去營養化作用、硝化和反硝化作用以及氮與生物特定種群的關系等，探討了影響海洋沉積物中的氮循環的主要因素，分析了海洋沉積物中的氮與生態系的關系，以期對研究氮的海洋生物地球化學過程有所幫助
  20. Effect of nitrogen application on nitrogen absorption, distribution and yield of strawberry

    不同施氮處理草莓氮素吸收分配及產量差異的研究
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