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生态学杂志 ›› 1991, Vol. ›› Issue (1): 11-14.

• 研究报告 • 上一篇    下一篇

割草后施用氮肥的生态效应

仲延凯, 包青海   

  1. 内蒙古大学, 呼和浩特 010021
  • 收稿日期:1989-11-21 修回日期:2011-03-10 出版日期:1991-02-10

Ecological Effects of Applying Nitrogen Fertilizer After Mowing

Zhong Yankai, Bao Qinghai   

  1. Inner Mongolia University, Huhhot 010021
  • Received:1989-11-21 Revised:2011-03-10 Online:1991-02-10

关键词: 强壮箭虫, 温度, 盐度, 个体耗氧率, 比耗氧率, 窒息点

Abstract: With the application of nitrogen fertilizer(urea 112.5kg.ha-1), the aboveground biomass of community increases 66.15% as an average of 5 years. The aboveground biomass of Aneurolepidium chinense, Stipa grandis and Salsola collina increases 71.34%, 44.86% and 269.44% respectively. The density of community increases 63 plants.m-2. The density, height and individual plant weight increase 90 shoots.m-2, 8.48cm and 0.0275g respectively. Grasses and Chenopodiaceae Plants are more susceptible to the application of nitrogen fertilizer.

Key words: Sagitta crassa, temperature, salinity, oxygen consumption rate, specific oxygen consumption rate, asphyxiation point