欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 1995, Vol. ›› Issue (2): 23-26.

• 研究报告 • 上一篇    下一篇

香港草地、芒萁和灌木群落的养分利用效率

管东生   

  1. 中山大学环境科学系, 广州510275
  • 收稿日期:1994-08-15 修回日期:1994-09-26 出版日期:1995-04-10
  • 基金资助:
    美国洛克菲勒兄弟基金会

Nutrient Utilization Efficiency of Grassl, Fernland and Shrubl and in Hong Kong

Guan Dongsheng   

  1. Department of Environmental Science, Zhongshan University, Cuangzhou 510275
  • Received:1994-08-15 Revised:1994-09-26 Online:1995-04-10

关键词: 滴灌, 漫灌, 产量, 氮素吸收, 氮肥损失

Abstract: Four different methods are used to estimate the nutrient utlization efficiency of grassland,fernland and shrubland in Hong Kong. The results show that nutrient utilization efficiency calculated by Hirose(1975)and Vitousek(1982)methods are in the same order for three communities,i.e.,grassland > fernland>shrubland.Compared with other studies on tropical forest,it is found that the nutrient utilization efficiency of grassland fernland and shrubland is greater than that of forest land.

Key words: drip irrigation, furrow irrigation, yield, N uptake, fertilizer N loss.