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生态学杂志 ›› 1990, Vol. ›› Issue (3): 38-41.

• 研究报告 • 上一篇    下一篇

农业生态系统物质循环的系统分析

卢兵友, 王留芳   

  1. 西北农业大学
  • 出版日期:1990-06-10

System Analysis for Matter Cycling in Asroecosystem

Lu Bingyou, Wang Liufang   

  1. Northwest Agricultural University
  • Online:1990-06-10

关键词: 黑土, 长期施肥, 微生物量氮, 变化特征, 相关因素

Abstract: This paper deals with the existing problems of nutrient cycling and its solution appreaches inWeibei highland agroecosystem.The results show that readjusting structure,increasing input,reducing ineffective consumption,raising efficiency of nutrients and exploitating technology are the essential measures for the control of the ecological environment.

Key words: Black soil, Long-term fertilization, Microbial biomass N, Dynamic characters, Related factors