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植物研究 ›› 1995, Vol. 15 ›› Issue (1): 97-103.

• 论文 • 上一篇    下一篇

东北羊草草原羊草种群生长与环境关系的研究

张崇邦, 张忠恒, 杨靖春   

  1. 黑龙江省克山师专生物系, 克山 161601
  • 收稿日期:1994-03-01 出版日期:1995-03-15 发布日期:2016-06-14

THE STUDY OF THE REALATIONSHIP BETWEEN LEYMUS CHINENSIS POPULATION GROWTH AND ENVIRONMENT ON THE GRASSLAND IN THE NORTHEAST CHINA

Zhang Chong-bang, Zhang Zhong-heng, Yang jing-chun   

  1. The biology departmemt of Keshan normal college, Heilongjiang province, 161601 Keshan
  • Received:1994-03-01 Online:1995-03-15 Published:2016-06-14

摘要: 本文研究了东北单草草原单草种群的生长, 并利用灰色系统理论考查了环境因子对单草生长的作用规律. 结果表明:羊草种群的生长具有明显的季节进程, 7-8月份生长最快, 生长速率为0.20-0.403g/m2·d, 相对单草的生长. 土壤水解氮、速效钾、活性有机质、温度、pH值和有效磷具有较大的灰色关联度, 其中水解氮、速效钾和活性有机质是羊草生长的优势因子, pH值是限制因子. 羊草生长的最优模型为y=4.74x1+6.15x2+2.48x3-73.64.

关键词: 羊草草原, 羊草种群生长, 环境

Abstract: This Paper studied the growth law of Leymus chinensis and effect of environment factors on the Leymus chinensis grassland in the northeast China with the grertheory. The results indicated:the growth of Leymus chinensis population has adistinCt seasonal variation, it grows best from July to August, the growth rate isfrom 0.2-0.403g/m2·d. Among nine environment factors, Hydrolyted nitrogen, quick acting postassium, active organic matter, temperature, PH and effective Phosphorus to Leymus chinensis growth kaye the best connected coefficients, those of hydrolyted nitrogen, quick acting posstassium and active organic matter arepromoted factors, PH is restrictive factors. The best model of Leymus Chinensisgrowth is y=4.74X1+6.15X2+2.48X3-73.64.

Key words: Leymus chinensis grassland, Leymus chinensis population grouth, Environment