硝化作用

pH对酸性黄壤微生物生物量以及硝化作用的影响

Effects of pH on Microbial Biomass and Nitrification in Acid Yellow Soil

土壤硝化作用在团聚体中的分布以及耕作的影响

Distribution of Soil Nitrification within Soil Aggregates and the Effects of Tillage on It

硝化作用是自然界N素循环的一个重要环节，对于农业生产、环境保护等都具有重要意义。

Nitrification is an important part of N cycle in nature .

反硝化作用产生的~（15）N2能被微好氧条件下生长的粪产碱菌所重新固定，电子传递过程中产生的能量支持固氮作用。

The energy generated during the electron transfer supports the nitrogen-fixation .

光合细菌P4株的反硝化作用

Denitration of Photosynthetic Bacteria P_4 Strain

大豆、玉米种植下硝化作用是土壤N2O排放的最主要来源，反硝化速率处于检测限之下。

Similarly , N2O was primarily produced through nitrification in the soybean and maize growing season .

夏季长江河口潮间带反硝化作用和N2O的排放与吸收

Denitrification , nitrous oxide emission and adsorption in intertidal flat , Yangtze Estuary , in summer

小麦生长季N2O排放主要来自于硝化作用（贡献率为88.3%），反硝化作用的贡献率很小；

Little Drops of Water Little Voice Nitrification contributed 88.3 % to soil N2O flux of wheat season .

总硝化作用速率与土壤pH值、土壤有机质、全氮及C/N相关不显著。

Gross nitrification rates were not related to the pH value , the organic matter , total nitrogen and C / N.

和硝化作用有关的一个问题就是由于生成硝酸而使系统内的ph值降低。

A problem related to nitrification is a drop in PH for the system due to the formation of nitric acid .

盐度变化对SBR中硝化作用的动态影响研究

Dynamic effect of salinity changed on nitrification in SBR

化感物质对枯草芽孢杆菌（Bacillussubtilis）在厌氧条件下的生长及反硝化作用的影响

Effects of allelochemicals on growth of Bacillus subtilis and its denitrification under anaerobic condition

研究了不同pH值、氯氨投加顺序和水温等因素对长期静态条件下硝化作用的影响。

The effects of different pH , sequence of chlorination and ammoniation and water temperature on nitrification under conditions of long-term static are studied .

免耕与秸秆施用使得土壤硝化作用和土壤温、湿度不再具有显著关系（p0.05）。

No-tillage and straw addition made the Gn had no significant correlation with soil temperature or moisture content ( p0.05 ) .

土壤N2O的排放主要是土壤反硝化作用的结果。

In addition , N2O flux was mainly derived from denitrification .

水中pH中性和微碱性、溶解氧含量高以及良好的藻类生长，均有利于硝化作用的进行。

Water pH on neutrality or slight alkalinity , the increase of DO and the growth of algae all are favorable to the process of nitrification .

对根际反硝化作用及N2O的释放进行了综述。

Progresses on denitrification in rhizosphere and N2 O emission were reviewed .

RP与CK、P处理比较，可以刺激微生物活性和增加土壤反硝化作用；

Microorganism activity at the RP treatments could be simulated and soil denitrification increased , compared with the CK and P treatments .

施肥后短期以NH+4N存在的肥料N占施N量的505%，随着硝化作用的进行和作物的吸收，土壤中的NH+4N显著下降。

The NH + 4-N was 50.5 % of applied nitrogen fertilizer in short time after application . NH + 4-N in soil sharply decreased with nitrification and crop uptake afterwards .

随着培养时间的延长，La对土壤硝化作用和酚分解作用的抑制作用有降低的趋势。

When the incubation is prolonged , there is a tendency of decreasing in the inhibitory effects of La on soil nitrification and phenol decomposition .

BOD测定中硝化作用的影响及抑制异养硝化细菌的分离及其硝化特性实验研究

THE EFFECTS AND INHIBITION OF NITRIFYING ACTION IN B.O.D TEST Isolation and Characterization of Heterotrophic Nitrifying Bacteria

不同土壤的反硝化作用活性明显不同.山地暗棕色森林土的CH4吸收作用也主要发生在土壤的上层（0&12cm）。

The uptake of CH4 by dark brown forest soil mainly occurs in upper soil layer ( 0-12cm ) .

污灌以后，随土壤含水量、氧化还原电位和pH值的变化，氨化作用、硝化作用和反硝化作用依次成为氮素转化的主要机制。

After irrigating , with the variation of moisture , oxygen and pH value , the ammonification , nitrification and de nitrification are successively the major causes of nitrogen trasformation in the soil .

UBAF对COD及SS的去除有较强的抗冲击负荷能力，而其硝化作用受冲击负荷影响较大。

UBAF had a strong anti-shock loading capability , however , its nitrification performance was greatly affected by shock loading .

由于自养硝化作用在不同季节的发生，使得草甸草原土壤N2O的产生潜势也高、低起伏变化。

The increasing and decreasing of N2O production potential result from the appearance of autotrophic nitrification in different growing period .

结果表明，当温度适宜于反硝化作用进行时，降雨事件与N2O季节释放峰间存在明显的驱动-响应关系；

The results showed that during suitable temperature range for denitrification , N 2O flux peaks were driven by rainfall event .

实验结果表明：内蒙古温带草甸草原土壤N2O产生过程以硝化作用为主。

The research results showed that the heterotrophic nitrification is the important microbiological process of N2O production in this kind soil .

反硝化作用使δ15N和δ18O成比例线性增加。

The denitrification may cause δ 15 N and δ 18 O to increase linearly in proportion .

低浓度下，La对土壤硝化作用和磷转化作用均有某些刺激作用，但随着浓度的升高产生抑制作用并不断增强。

La has stimulative effects on soil nitrification and phosphorus transformation at low concentration but has inhibitory effect at high concentration , and the inhibition is strengthened with increasing of La concentration .

尿素施入土壤后，先进行水解作用，因此伴随着土壤pH的升高，然后一周左右硝化作用开始，土壤pH下降；硫酸铵一经施入土壤，硝化作用便开始进行，土壤pH下降。

When urea was applied to soil , first hydrolyzed along with soil pH increase , then nitrification began along with soil pH decrease ; once ammonium sulfate was applied to soil , nitrification began and soil pH decreased .