1)  Nitrogen flow
氮素流
2)  nitrogen loss
氮素流失
1.
Nitrogen loss in rice-wheat cropping farmland and its control measures;
稻麦轮作农田氮素流失及控制对策研究
2.
An experimental research on soil erosion and nitrogen loss under different vegetation cover;
不同植被对土壤侵蚀和氮素流失的影响
3.
Soil nitrogen loss processes resulted from rainfall and runoff were monitored in a small agricultural catchment of red soil areas in Jiangxi Province with the aim to investigate the relationship between the soil nitrogen loss and the corresponding rainfall and runoff.
以江西低丘红壤区农业小流域为研究对象,在自然降雨条件下对小流域内试验小区、上游灌渠和小流域出口径流中的氮素浓度进行监测,旨在从小区尺度和小流域尺度阐明农业小流域氮素流失与降雨和径流的关系。
3)  nitrogen losses
氮素流失
1.
On the basis of water-nitrogen coupling balance theory and field observation results,a simple but comprehensive model was developed to predict nitrogen losses from a urea applied rice paddy field,considering all the important hydrological pathways such as surface runoff,lateral seepage,and vertical leaching.
基于水氮耦合平衡理论和田间实际观测,开发了一套既简单又综合的水田氮素流失特征模拟模型。
4)  fate of nitrogen
氮素流向
5)  nitrogen flow
氮素流动
1.
With the growing of income and urbanization,the food consumption structure in urban and rural area of China changes the nitrogen flow model significantly,which has led to tremendous pressure of ecological environment arid serious pollution problems in cities and towns.
为此,本研究利用调查数据、文献资料和统计数据,采用物质流分析的方法,就城镇化发展对我国食物消费体系氮素流动特征、循环利用及其环境排放的影响、城镇化对全国、北京及河北不同年代农田氮素循环的影响进行了初步探讨,以期为解决城镇化过程中城镇本身的生态环境问题及农田养分循环中的生态环境问题提供依据。
6)  nitrogen loss modulus
氮素流失模数
参考词条
补充资料:素流
1.寒素之辈。指门第低微的人。 2.清澈的流水。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。