反硝化作用,denitrification
1)denitrification[di:naitrifi'kei??n]反硝化作用
1.Research Progress of Nitrification and Denitrification in Soil;土壤硝化和反硝化作用研究方法进展
2.Advances in the study of denitrification in estuaries;河口区域反硝化作用研究进展
3.Progress of studies on denitrification of wetland;湿地反硝化作用研究进展
英文短句/例句

1.Contributions of Nitrification & Denitrification to Emission of Nitrous Oxide in Farmland Soil;硝化与反硝化作用对农田土壤N_2O排放的贡献
2.Study on Nitrification and Denitrification in Mangrove Constructed Wetlands红树林人工湿地硝化和反硝化作用研究
3.In Malan Loess, the three nitrogen transform by nitrification and denitrification.在马兰黄土中,影响三氮转化的主要作用有硝化作用和反硝化作用
4.Denitrifiers and Their Denitrification in Eutrophic Lake Sediment;富营养化湖泊底泥中反硝化微生物及其反硝化作用的研究
5.The Reasearch of Denitrification and Its Influent Factor in Typical Sea Area;典型海区反硝化作用及影响因素研究
6.The study of denitrification rate in Qi'ao island coastal zone,Pearl River estuary珠江口淇澳岛海岸带反硝化作用研究
7.Quantification of denitrifying bacteria and denitrification process in surface sediment at adjacent sea area of the Yangtze River Estuary in summer长江口海域夏季沉积物反硝化细菌数量及反硝化作用
8.Nitrification-Denitrification of Fertilizer Nitrogen in Winter Wheat/Summer Maize Rotation System;冬小麦/夏玉米轮作体系中肥料氮的硝化—反硝化作用研究
9.Nitrification and Denitrification with Different Agricultural Land Use Patterns in the Suburb of Shanghai上海城郊不同农业用地类型土壤硝化和反硝化作用
10.Response of Nitrification-Denitrification and Carbon Mineralization to Nitrogen Input in Meadow Marsh Soil草甸沼泽土壤硝化-反硝化作用和有机碳矿化对氮输入的响应
11.Nitrification and Denitrification in Subalpine Coniferous Forest Soil of Western Sichuan, China;川西亚高山针叶林土壤的硝化和反硝化作用研究
12.Dynamics of denitrification potential in a Danish forest soil.丹麦森林土壤反硝化作用的动力学分析
13.Technology Research of Denitrification Inhibation Sulfate Reducing Bacterium;反硝化作用抑制硫酸盐还原菌活性的技术研究
14.Nitrate Reduction in Riparian Soils in Forest and Cropland Landscapes;森林、农田背景下河岸带土壤反硝化作用研究
15.Review of Research in Aerobic Denitrification by Microorganisms微生物好氧反硝化脱氮作用研究进展
16.Using BaPS System to Study Upland Soil Nitrification-Denitrification and Respiration;应用BaPS系统研究旱地土壤硝化—反硝化过程和呼吸作用
17.Research on nitrification-denitrification and respiration under mulch drip irrigation in desert oasis荒漠绿洲带膜下滴灌土壤硝化-反硝化和呼吸作用的研究
18.Functions of Denitrifying Bacteria and Its Application in Aquaculture;反硝化细菌的作用及其在水产上的应用
相关短句/例句

nitrification-denitrification硝化-反硝化作用
3)nitrification-de-nitrification硝化-反硝(作用)
4)aerobic denitrification好氧反硝化作用
5)facultative denisorification兼性反硝化作用
6)obligate denitrification专性反硝化作用
延伸阅读

反硝化作用  硝酸盐在某些微生物的作用下还原为气态氮的过程。多发生于沼泽、湖泊和渍水土壤等缺氧环境中。其反应过程可简示为:2HNO3─→2HNO2─→2HNO─→N2。参与作用过程的微生物主要是反硝化细菌。作用的强度主要取决于土壤中的氧浓度和土壤pH。所有的反硝化细菌都是兼气性细菌,反硝化作用只有在土壤中的氧浓度较低时才能进行。当氧浓度减至5%以下时,反硝化作用明显增强。在过湿的环境中或在通气土壤的局部嫌气区(如根际),都能测得较明显的反硝化作用。反硝化作用的最适pH为7.0~8.2。当pH低至5.2~5.8或高达8.2~9.0时,反硝化作用的强度都会显著减弱。    在自然界,除上述通常由反硝化细菌引起的反硝化作用外,还常由以下途径使介质中的硝酸盐还原为气态氮:①某些微生物通过对硫的氧化或某些含硫化合物,而使硝酸盐还原:2S+6KNO3+2CaCO3─→2K2SO4+2CaSO4+2CO2+3N2。 ②通过纯化学过程使硝酸盐还原为气态氮。但这一过程与真正的反硝化作用不同。    由于反硝化作用导致土壤氮或施入土壤中的氮肥中氮的损失,因而对植物生长不利。农业生产上常需采取措施改善土壤通气状况和调节土壤酸度,防止和减缓反硝化作用的发生。