1) nitrogen deposition
氮沉积量
2) nitrogen deposition
氮沉降
1.
Impact of nitrogen deposition on forest plants;
氮沉降对森林植物的影响
2.
Effects of nitrogen deposition on the soil base cations in Chinese fir plantation;
氮沉降对杉木人工林土壤盐基离子的影响
3.
Effects of simulated nitrogen deposition on biomass of wetland plant and soil active carbon pool;
模拟氮沉降对湿地植物生物量与土壤活性碳库的影响
3) precipitation of ammonia nitrogen
氨氮沉淀
1.
In the laboratory and with a simulated wastewater as samples, the factors influencing the precipitation of ammonia nitrogen from wastewater were investigated with MgCl2 and Na2HPO4 as precipitants.
以MgCl2和Na2HPO4为沉淀剂,用实验室模拟废水研究了影响氨氮沉淀的因素,包括沉淀pH值、沉淀剂的添加量及氨氮的原始质量浓度。
4) N deposition
氮沉降
1.
Responses of soil fauna community to simulated N deposition;
模拟氮沉降对苗圃地土壤动物群落的影响
2.
Effects of simulated N deposition on the photosynthetic and physiologic characteristics of dominant understorey plants in Dinghushan Mountain of subtropical China.;
鼎湖山主要林下层植物光合生理特性对模拟氮沉降的响应
3.
Effects of simulated N deposition on free amino acids and soluble protein of three dominant understory species in a monsoon evergreen broad-leaved forest of subtropical China;
鼎湖山季风常绿阔叶林林下层3种优势树种游离氨基酸和蛋白质对模拟氮沉降的响应
5) nitrogen retention
氮沉积
1.
Efffct of apramycin on nutrients metabolizablity and nitrogen retention in piglets;
安普霉素对仔猪养分代谢率及氮沉积的影响
2.
The experiment estimated the effects of various levels of rumen by-pass corn starch on energy metabolism and nitrogen retention in beef cattle.
研究了不同水平过瘤胃玉米淀粉量对能量代谢和氮沉积的影响。
3.
32 kg on average,were subjected randomly to 4 treatments for determining the effects of extrogenous metabolism-regulating agents on pig performance,protein turn-over and nitrogen retention by using isotope(15N-Gly) technique and nitrogen balance trial.
采用稳定同位素(15N-Gly)示踪技术和氮平衡试验,比较研究了外源代谢调节物(黄芪组方浓缩物、半胱胺)对PIC肥育猪生长性能、体蛋白动态代谢和氮沉积的影响。
6) atmospheric nitrogen deposition
大气氮沉降
1.
Observation of atmospheric nitrogen deposition into forestland;
林地大气氮沉降的观测研究
2.
δ~(13)C and δ~(15)N of moss (Haplocladium microphyllum (Hedw.) Broth) for indicating habitats difference and canopy retention on atmospheric nitrogen deposition;
碳氮稳定同位素指示苔藓生境特征以及树冠对大气氮沉降的吸收
3.
Besides the rainfall, dry deposition and occult precipitation are also important forms in atmospheric nitrogen deposition.
由于人类活动的影响，若干年代以来大气氮沉降明显增加。
参考词条
补充资料：氮质生化需氧量
分子式：
CAS号：
性质： 在BOD检验中，氨氧化为亚硝酸盐或硝酸盐时取用的生化需氧量，即第二阶段生化需氧量。通常水样培养10天后才产生此氧化作用，因此，5天生化需氧量不包括氮质生化需氧量。生物硝化过程包括两个阶段，第一阶段氨转化为亚硝酸盐，第二阶段亚硝酸盐转化为硝酸盐。
CAS号：
性质： 在BOD检验中，氨氧化为亚硝酸盐或硝酸盐时取用的生化需氧量，即第二阶段生化需氧量。通常水样培养10天后才产生此氧化作用，因此，5天生化需氧量不包括氮质生化需氧量。生物硝化过程包括两个阶段，第一阶段氨转化为亚硝酸盐，第二阶段亚硝酸盐转化为硝酸盐。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。