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生态学杂志 ›› 1996, Vol. ›› Issue (1): 8-13.

• 研究报告 • 上一篇    下一篇

青海发菜生长的自然条件及生态生理学特性的研究

刁治民   

  1. 青海畜牧兽医学院, 西宁 810003
  • 收稿日期:1995-04-03 修回日期:1995-06-05 出版日期:1996-02-10

Study of Natural Conditions and Ecological Physiology Characteristics for Growth of N. flagelliforme in Qinhai Province

Diao Zhimin   

  1. Qinghai Animal Husbandry and Veterinary Medicine College, Xining 10003
  • Received:1995-04-03 Revised:1995-06-05 Online:1996-02-10

关键词: 三峡库区, 马尾松人工林, 根系, 凋落物, 土壤理化性质

Abstract: The natural conditions and ecological physiology characteristics of Fahtscai (Nostoc flagelliforme Bron et Flah.) growing in 14 counties and one city of Qinghai province were reported in this paper. The research showed that N. flagelliforme grows in dry desert steppes with arid or semiarid continental climate. The soil on which N. flagelliforrne could grow well is the calcic sierolem and light chestunt soil developed from loess mother material during the quaternary period. The soil has strong alkaline reaction, with plenty of calcic deposit. In morphiology and physiology, N. flagelliforme showed strong xerophilous ecological adaptability, including drought-resistance, barren-endurance, addiction to sunshine, calcium and alkal as well as adaptation of temperature variation. The growth of N. flagelliforme exhibited an obvious water rhythm phenomenon.

Key words: Three Gorges Reservoir Area, Pinus massoniana plantation, root, litterfall, soil physical and chemical properties.