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nitrification strength
相关语句
  硝化强度
     HQ can effectively restrain the volatilization of ammonia been dressed in soil and produce strong restraint to the nitrification strength of urea and ammonium salt.
     2.氢醌能有效地抑制施入土壤中尿素氨的挥发,而对铵盐和尿素的硝化强度产生强烈抑制。
短句来源
  硝化作用强度
     Nitrification-denitrification existed widely in the substrate, and nitrification showed definite spatial regulations:nitrification strength in 0~10cm substrate was higher with more than 20 percents than that in 40~55cm substrate;
     硝化反硝化作用广泛存在于基质中,硝化作用表现出一定的空间规律,0~10cm的基质硝化作用强度要比40~55cm层面的高出20%;
短句来源
  相似匹配句对
     Unit Is Strength
     Unit Is Strength(团结就是力量) (初二适用)
短句来源
     METALLIC STRENGTH
     金属力量
短句来源
     Nitrification Inhibitor
     硝化抑制剂
短句来源
     NITRIFICATION OF WASTEWATER
     废水的硝化作用
短句来源
     High Strength Ammonium Wastewater Treatment with Aerobic Granules by Simultaneous Nitrification Denitrification
     好氧颗粒污泥同步硝化反硝化处理高浓度氨氮废水研究
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The restraining rate and lasting time to soil urease activity by hydro-quinone has positive correlation with the HQ strength and negative correlation with the soil urease activity. HQ can effectively restrain the volatilization of ammonia been dressed in soil and produce strong restraint to the nitrification strength of urea and ammonium salt.In soil dressed wheat stem, as urease activity is increased, the hydrolysis speed of urea that be dressed into soil is accelerated, so the usease of HQ should be...

The restraining rate and lasting time to soil urease activity by hydro-quinone has positive correlation with the HQ strength and negative correlation with the soil urease activity. HQ can effectively restrain the volatilization of ammonia been dressed in soil and produce strong restraint to the nitrification strength of urea and ammonium salt.In soil dressed wheat stem, as urease activity is increased, the hydrolysis speed of urea that be dressed into soil is accelerated, so the usease of HQ should be added. While as the N factor effect of wheat stem, the catabolite and oxidized product of urea are fixed, thus the possible urea loss continued after the Hq become invalid is made up.

1.氢醌对土壤脲酶活性的抑制率及其持续的时间同氢醌浓度成正相关,与土壤脲酶活性成负相关。2.氢醌能有效地抑制施入土壤中尿素氨的挥发,而对铵盐和尿素的硝化强度产生强烈抑制。3.在麦秸还田土壤中,由于脲酶活性增高而提高了施入尿素的水解速度,故需提高氢醌用量;但由于麦秸的“氮因子效应”又固定了尿素分解产物及其氧化产物,从而弥补了氢醌失效后可能造成氮素的继续损失。

Microorganism amounts, biomass nitrogen, enzyme activities, nitrification, denitrification, and respiration were measured in separate layer samples of the substrate of stablely operating plot scale of integrated vertical-flow constructed wetland. Aerobic microorganisms amount in 0~10cm substrate of up-flow and of down-flow ponds were higher with 1~2 magnitudes than that in 30~55cm substrate; the amounts of denitrification bacteria reached over 107/g (dry soil) except those of down-flow pond. Urease activities...

Microorganism amounts, biomass nitrogen, enzyme activities, nitrification, denitrification, and respiration were measured in separate layer samples of the substrate of stablely operating plot scale of integrated vertical-flow constructed wetland. Aerobic microorganisms amount in 0~10cm substrate of up-flow and of down-flow ponds were higher with 1~2 magnitudes than that in 30~55cm substrate; the amounts of denitrification bacteria reached over 107/g (dry soil) except those of down-flow pond. Urease activities in 0~20cm substrate were obviously stronger than those in 30~55cm substrate; and dehydrogenase activities in 0~10cm substrate were 2~5 times of those in 10~55cm substrate.Nitrification-denitrification existed widely in the substrate, and nitrification showed definite spatial regulations:nitrification strength in 0~10cm substrate was higher with more than 20 percents than that in 40~55cm substrate; thespatial difference of denitrification was very little, with its lowest action rate still reaching 85.5%.

对稳定运行的复合垂直流构建湿地中试系统基质进行分层采样,测定微生物数量,生物量氮,酶活性,硝化作用,反硝化作用以及呼吸作用等各项指标.结果表明,上行流和下行流池0~10cm的基质层中好氧微生物数量高出30~55cm的层面1~2个数量级;反硝化细菌除下行流池0~10cm的层面外其他基质层数量都达到107个/g干土以上.0~20cm的基质层中脲酶活性明显高于30~55cm的层面;而0~10cm的层面中脱氢酶活性明显高出10~55cm的层面2~5倍.硝化反硝化作用广泛存在于基质中,硝化作用表现出一定的空间规律,0~10cm的基质硝化作用强度要比40~55cm层面的高出20%;反硝化作用的空间差别很小,其作用率最低也达到85.5%.

 
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