Terrestrial microorganisms play a vital role in soil nitrogen cycling. They participate in important ecological processes such as nitrogen fixation, ammonification, nitrification and denitrification.

土壤微生物在土壤氮循環(huán)中發(fā)揮著不可替代的作用在线欧美日韩视频，參與了包括固氮作用黄色看片网址、氨化作用国产真人无遮挡免费网站、硝化作用和反硝化作用等重要生態(tài)過程视频在线黄色一区。

In this paper, the effects of enrofloxacin residues on soil ecological processes (soil respiration, soil cellulosic decomposition, soil ammonification , and soil nitrification) were studied.

1μg/ g土對土壤氨化作用有刺激作用在线国产小黄片，而較高濃度恩諾沙星殘留(1μg/ g土，10μg/ g土)則會對其起抑制作用十八岁黄片，藥物作用活性期為 9d十八禁视频网站；不同濃度恩諾沙星對土壤硝化作用影響極其顯著26uuuu综合，當恩諾沙星濃度達到 1μg/ ml時，在 3～ 9d內(nèi)国产黄色视频在线免费播放，對土壤硝化作用有一定抑制作用求国产精品网址。

In this paper, the importance of denitrification in the biogeochemical cycle of nitrogen in estuaries is summarized, It introduces methods of denitrification determination, as well as their advantages and disadvantages.

本文綜述了河口區(qū)域反硝化作用在N元素生物地球化學循環(huán)過程中的重要作用，概述了不同測定反硝化速率的方法2020人人操人人摸，并提出了各種方法的優(yōu)缺點亚洲一区亚洲二区。總結了反硝化作用的影響因素：O2濃度多人作爱一级黄片，NO3超碰在线97在线，有機質(zhì)，溫度在线观看很黄很水的视频网站，生物等国产免费黃色视频。

The communities of Denitrifying bacteria, and some key enzymes of denitrification were also introduced.

從反硝化的角度出發(fā)，論述了反硝化細菌的類群姐姐直播App、反硝化作用的機理亚洲欧美日韩黄色视频、反硝化細菌細胞中參與反硝化過程的關鍵酶。

After years' effort, a new aerobic denitrifier that can deoxidize NO 3 - to N 2 and N 2 O has been isolated from ocean environment. Compound bacterial production is made up of aerobic denitrifying bacteria, nitrifying bacteria and organic compound degrading bacteria.

本項目將好氧還硝化菌羞羞漫画官方网站在线观看、硝化細菌和有機質(zhì)高效降解菌制成復合微生物制劑欧美成人网1314WWW，通過多種微生物共同作用，在好氧的條件下能同時進行有機質(zhì)降解极品欧美、硝化作用和反硝化作用色色爱爱视频，可有效降低水中的三氮（ NH 4 +、 NO 2 -欧美福利1区、 NO 3 -）好吊色中文字幕精品在线观看。

Nitrification is one of the most important step is the nitrogen cycle, this series of reactions are responsible for chemoautotrophic nitrobacteria, therefore the chemoautotrophic nitrobacteria play an important role in nitrogen cycle.

摘要 硝化作用為整個氮循環(huán)的必須步驟之一，這一連串的反應主要由自營性的硝化菌負責免费久草视频，因此黄色网站在线视频免费观看大全，自營性硝化菌在氮循環(huán)中扮演著關鍵的角色。

The results show that:①The forest soils have the stronger nitrification, but also the nitrification in surface horizon is stronger than the undersoil's.

結果表明：①森林土壤有較強的硝化活性视频亚洲欧美日韩，且表土層比底層土強黄色网站视频无码，同時根際土利于硝化作用進行，根際效應R/S在4.5左右九九九九人妻一区精品色；②淹水厭氣培養(yǎng)24h又黄又硬又爽又舒服视频，-N的消失率為52%～58%，占第10天的55%～71%色在线视频导航，且表土層-N的消失率比底層土大九九热这里只有精品6666；③參與同化反硝化作用的還原酶活性較強，在培養(yǎng)24h后在线黄色观看，被還原的基質(zhì)數(shù)量占加入基質(zhì)數(shù)量的70%～90%玖玖网在线。

The results showed that the wastewaters from the production of dyestuff, rubber and assistants from individual discharging points had significant effects on nitrification,while some characteristic pollutants,sueh as aminobenzene,nitrobenzene,phenol as weU as Zn2+,Mn2+,and Ni2+,especially Ni2+,had obvious inhibiting effects on nitrification,resulting in obvious reduction of the rate of nitrificatiOn in the biochemical treatment system.

研究結果表明：來源于個別排放點的染料生產(chǎn)污水热热热热热热热热热热热热色色色色色色、橡膠生產(chǎn)污水、助劑生產(chǎn)污水對硝化作用有顯著的影響草哟哟在线，一些特征污染物如苯胺国产美女免费自拍视频网站，硝基苯，苯酚及Zn2+这里只有精品美女老师，Mn2+又大又黄又粗高潮免费，Ni2+均對硝化作用有明顯的抑制作用，從而導致生化處理系統(tǒng)的硝化反應速率明顯降低中文字幕第22页，而且以Ni2+最為顯著seyoyo在线观看。

Heterotrophic nitrification bacteria are able to utilize organic carbon sources to grow and produce hydroxylamine, nitrite and nitrate from nitrogen compounds, and most of them can also denitrify these products to gaseous nitrogen compounds simultaneously.

異養(yǎng)硝化細菌能夠在利用有機碳源生長的同時將含氮化合物硝化生成羥胺、亞硝酸鹽午夜免费电影网、硝酸鹽等產(chǎn)物国产一级性爱免费视频，多數(shù)還能同時進行好氧反硝化作用，直接將硝化產(chǎn)物轉(zhuǎn)化為含氮氣體亚洲另娄视频。

When studying simultaneous nitrification and denitrification in membranebioreactor,it was foud that the concentration of DO was a key factor and the influence of C/N,pH value and temperature were unconspicuous.

在研究同步硝化反硝化作用時發(fā)現(xiàn)色艹艹视频，C／N、pH值和溫度對同步硝化反硝化作用無影響毛片网官方，DO是影響系統(tǒng)同步硝化反硝化的關鍵因素。

Denitrification：反硝化作用

主要來源於硝化作用(Nitrification)與反硝化作用(Denitrification), 由硝化菌通過氧化將NH3轉(zhuǎn)化為NO2, 或少量由沒有氣氧能生活的細菌經(jīng)過反硝化作用將NO3轉(zhuǎn)化為NO2.

aerobic denitrification：好氣反硝化,好氣性反硝化作用

aerobic dehydrogenase 需氧脫氫酶 | aerobic denitrification 好氣反硝化,好氣性反硝化作用 | aerobic digestion 好氣性消化,需氧消化法

chemical denitrification：化學反硝化作用

土壤化學固定 soil chemical fixation | 化學反硝化作用 chemical denitrification | 鉀固定 potassium fixation

nitration：硝化(作用)

nitrated cellulose 硝化纖維素 | nitration 硝化(作用) | nitric acid 硝酸

nitration：硝化作用滲氮法

nitrate 硝酸酯 | nitration 硝化作用滲氮法 | nitre 硝

nitrification：硝化作用

氮循環(huán)與微生物 氮循環(huán)(nitrogen cycle)是指氮在生物與環(huán)境之間的一種循環(huán)關系,它主要依賴微生物之間的作用為動力來完成的,主要共由四種微生物的生化作用所構成,分別是:固氮作用(nitrogen fixation)熟女69导航、氨化作用(ammonification)、硝化作用(nitrification)和固氮作用(den

bacterial nitrification：細菌硝化(作用)

bacterial methane | 甲烷細菌 | bacterial nitrification | 細菌硝化(作用) | bacterial oxidation | 細菌氧化(作用)

nitrosification：亞硝化作用

硝化作用 nitrification | 亞硝化作用 nitrosification | 反硝化作用 denitrification

Nitrosococcus H. Winogradsky：亞硝化球菌屬

nitrosation 亞硝化(作用) | Nitrosococcus H. Winogradsky 亞硝化球菌屬 | Nitrosocystis H.Winogradsky 亞硝化囊菌屬

nitrating agent：硝化劑

nitration 硝化<作用> | nitrating agent 硝化劑 | nitrated oil 硝化油