氮硝化作用 的英文怎麼說
中文拼音 [dànxiāohuàzuòyòng]
氮硝化作用
英文
nitrification-
Strain hn could ammonize organic nitrogen compounds and nitrify ammonia itself when it grew on acetamide companying the formation of ammonia and nitrite
該菌株能以乙酞胺為唯一碳源和氮源進行氨化作用和硝化作用並產生亞硝酸。The order of four soil biochemical intensity being sensitive to heavy metal pollution indicated as : nitrification > nitrogen fixation > decomposition of cellulose > ammonification. however, soil microbial biomass c : n ratio increased with the increasing of heavy metals level
幾種生化作用強度的下降順序為硝化作用固氮作用纖維素分解強度氨化作用;但土壤微生物生物量碳氮比則隨著重金屬污染水平的升高而增加。1. ecological effects of long - term organophasphate pesticides contamination on soil microflora the long - term effects of organophosphate pesticides contamination on soil microflora were investigated in the present study. little difference in total counts of bacteria, actinomycetes and fungi was observed between the contaminated and the non - contaminated soil. compared with the control there were a slight decrease in total counts of free - living nitrogen - fixer and denitrifying bacteria and a significant increase in those of ammonifying and ammonia - oxidizing and nitrifying _ bacteria in the methylparathion contaminated soil
一、甲基對硫磷長期污染對土壤微生物的生態學效應研究了有機磷農藥甲基對硫磷長期污染對土壤微生物的影響,實驗表明:土壤細菌、放線菌、真菌總的數量影響不大;自生固氮菌和反硝化細菌數量減少;氨化細菌、亞硝化細菌、硝化細菌的數量在污染土壤中卻有所增加;與對照土壤相比,污染土壤呼吸作用下降了29 . 93 ;氨化作用和硝化作用強度得到增強。The autotrophic nitrifying bacteria play a critical role in nitrogen cycle in nature
硝化細菌是一大類在自然界氮循環中起關鍵作用微生物菌群。It also could denitrify nitrate companying the formation of nitrite
以硝酸鈉為氮源時能進行反硝化作用。The number of mold, bacteria, culturable microorganisms, aerobic nitrogen - fixing bacteria, anaerobic nitrogen - fixing bacteria, aerobic cellulose decomposition microbes, anaerobic cellulose decomposition microbes were the most in 16 - year - old organic tea garden, and the biomass carbon and nitrification of edaphon were also the strongest
黴菌、細菌、可培養微生物總量、好氣性自生固氮菌、嫌氣性自生固氮菌、好氣性纖維分解菌、嫌氣性纖維分解菌均以16年生茶園最多,土壤微生物生物量碳和硝化作用也以16年生茶園最強。The dynamic change of nh4 +, no3 - and tn, under the situation which urea was applied in the high fertility paddy - field in yuhang of hangzhou city with a lysimeter which was designed and made by ourselves, was studied and analyzed in order to find the rules of the change in the water - body of surface and the leakage rule of nitrogen, to reduce the effect of nitrogen loss on the water pollution
藉助自行設計製作的稻田滲漏計,在杭州餘杭對高肥力稻田不同施用尿素氮肥情況下,稻田地表水和滲漏水中銨態氮、硝態氮和總氮(簡稱三氮)的動態變化規律進行了研究分析,以利於發現氮素在地表水體變化和淋失規律,盡量減少氮素淋失對地下水體所造成的影響。Nitrous oxide pollution of the atmosphere occurs usually from the nitration of cellulose and other organic materials.
大氣中的一氧化二氮污染通常由纖維和其他有機物質的硝化作用產生。( 8 ) the most limited factor to the sustainable land use is the water resource, due to the increase of the crop yield and the crop sowing area, so it is important for sustainable land use to decreasing irrig
門)士地利用變化及其效應的可持續評價表明,曲周縣存在的最主要的不可持續因素是耗水作物的大面積種植造成的水資源壓力,局部地下水硝態氮和重金屬含量超標,對區域的種植結構調整。Putting the potassium permanganate into the filter can improve its effect, the removal of organics and ammonia is increased, the influent concentration can satisfy the water reuse standard. but the turbidity of influent is unsatisfactory. the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed. the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2, hydraulic loading is 2. 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1. the influent concentration of organics is blow 7mg / l. from the beginning to 30cm of the anoxic filter, the removal of the organics is significant ; as the c / n ratio increasing, the influent concentration of ammonia is decreasing. when the c / n ratio is 3. 60, the enfluent concentration of ammonia is 3. 05mg / l which satisfies the water reuse standard. when the c / n ration is less than 3. 60, because of the imperfection
迴流比為2 : 1 ,水力負荷為2 . 55m3 / m2 ? h ,好氧柱氣水比為3 : 1時試驗表明:不同的c / n ( 1 . 05 7 . 45 )下,兩級曝氣生物濾池對有機物有很好的去除作用,出水有機物濃度小於7mg / l ,其中在缺氧柱進水端30cm內對有機物的去除最為明顯;隨著c / n的增加,系統出水氨氮濃度降低,當c / n為3 . 60時,出水氨氮濃度降到3 . 05mg / l ,已經滿足回用水的氨氮標準; c / n < 3 . 60時,因為缺氧柱的不完全反硝化,體系中硝酸鹽氮和亞硝酸鹽氮發生積累影響了好氧柱的硝化反應使氨氮降解效果較差;系統對總氮的去除隨著c / n的增加而增加,當c / n為3 . 60時,出水總氮已經降到11 . 18mg / l ,滿足回用水的要求。The result of numerical taxonomy indicated that there were high phenotypic diversity among the strains isolated from the root nodules of pueraria spp. it can been seen in utilization of carbon and nitrogen sources, antibiotic resistance, resistance to dyes and chemicals, tolerance to acid, acid production, alkali production, nitrate reduction et al. the dendrogram divided all the strains into
數值分類對所有供試菌株進行了131項表型性狀的測定,結果表明,葛藤根瘤菌具有豐富的表型多樣性,表現在利用多種化合物作為唯一碳源、氮源能力,對抗生素、染料和化學藥物的抗性,耐酸性,產酸產堿情況,硝酸還原能力等方面。Studying on the mechanism of nitrogen transport and transformation under the conditions of fertilization and irrigation with sewage effluent is very important for utilization of sewage effluent and fertilizer and pollution control. based on laboratory and field experiment and numerical simulation, nitrogen transport and transformation has been investigated in this dissertation
污水灌溉和施肥條件下,氮素在土壤與作物系統中遷移轉化規律的研究,對于合理利用污水資源和合理施肥,最大限度提高水分和養分的利用率,減少硝態氮淋洗風險,具有十分重要的意義。The paper summarize some relevant data and introduces the current research situation about the offects of intragen on photosynthesis, chlorophyll, photosynthetic rate, effeciency of solar energy utilization, dark reaction and photorespiration etc., on respiration and on some metabolic enzymes, including nitrate reductase, enzyme protective system of membrane - lipid peroxidation
綜合國內外有關文獻,介紹了氮素對植物光合作用(包括光合色素、光合速率、光能利用率、光合暗反應、光呼吸等) 、呼吸作用和一些代謝酶(包括硝酸還原酶、膜脂過氧化酶促防禦系統)的影響。The two methods correlation of ammonia - oxidizers and nitrite - oxidizers are 0. 9593 and 0. 9823, respectively. compared with the conventional mpn method, int dehydrogenase method is more rapid, simpler, and easily operated. the detection periods were shorten from 4 weeks of mpn to 2 days. the int dehydrogenase is a pragmatic method for rapid detection of nitrifying bacteria
採用硝化細菌的偶氮鹽( int )還原計數檢測法對活性污泥的硝化細菌進行檢測,所得的結果與傳統的mpn ? griess法檢測值有著很好的相關性, int法檢測周期為2天,具有快速、簡便、操作容易等優點,是一種有推廣價值的硝化細菌快速計數檢測方法。Mineralization and nitrification of soil ni trogen in calcareous soil profile
石灰性土壤剖面氮素的礦化和硝化作用The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decomposition, nitrification and denitrification.
土壤氮狀況是一個固氮、微生物分解、硝酸化和脫氮過程的作用。Nitrification, performed oxidation of ammonia to nitrate by nitrifying bacteria is a key process in the cycling of nitrogen and an impotent component of modern wastewater treatment
由硝化細菌催化氨氮氧化的硝化作用是氮循環的關鍵步驟,也是現代污水處理廠生物處理氨氮廢水的重要環節。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Using this product for long term, can efficiently avoid the suffocation of nitrification, promote the cycle of nitrogenous substance, avoid the water quality worsen and purify water quality, reduce the risk of breeding and increase the breeding benefit
長期使用用本品后可有效避免硝化作用受阻、推動含氮物質的循環、避免水質惡化、凈化水質降低養殖風險、提高養殖效益。分享友人