欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 1984, Vol. ›› Issue (2): 1-7.

• 研究报告 •    下一篇

京津渤地区污灌与土壤-植物系统硝酸态氮的淋失动态模拟实验研究

高拯民, 张福珠, 熊先哲, 戴同顺, 韩淑华, 王玉顺   

  1. 中国科学院林业土壤研究所
  • 收稿日期:1983-06-06 出版日期:1984-04-10

A SIMULATED DYNAMIC STUDY ON NO3- LEACHING IN THE SOIL-PLANT SYSTEM OF BEIJING-TIANJIN-THE BOHAI SEA REGION CAUSED BY SEWAGE IRRIGATION

Gao Zhengmin   

  1. Institute of Forestry and Soil Science, Academia Siniea
  • Received:1983-06-06 Online:1984-04-10

关键词: 混合稀土, 作物, 相对出苗率, LC50

Abstract: To estimate the leaching rate of NO3- in the soil-plant system of Beijing-Tianjin-the Bohai Sea region caused by sewage irrigation, a simulated study with open lysimeter is carried out. The results show that when excess of NO3- beyond the intake ability of soil-plant system is produced, it may be a potential pollutant to the ground-water, which must be paid much attention in practice.

Key words: Rare earth elements, Crop, Relative seedling ratio, LC50