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应用生态学报 ›› 1997, Vol. 8 ›› Issue (4): 372-376.

• 研究论文 • 上一篇    下一篇

野生大豆种子雨的研究

李军, 郑师章, 钱吉, 任文伟, 叶培宏   

  1. 复旦大学生态研究室, 上海 200433
  • 收稿日期:1996-04-26 修回日期:1996-10-15 出版日期:1997-07-25 发布日期:1997-07-25
  • 基金资助:

    国家自然科学基金(39230250)

Seed rain of Glycine soja

Li Jun, Zheng Shizhang, Qian Ji, Ren Wenwti, Ye Peihong   

  1. Fudan University, Shanghai 200433
  • Received:1996-04-26 Revised:1996-10-15 Online:1997-07-25 Published:1997-07-25

摘要: 对野生大豆种子雨的时空动态及其与外界天气情况关系的初步研究表明,在野生大豆整个种子雨的历程中,出现3个较为明显的炸荚和种子散落的高峰,并且峰的出现与天气晴朗(相对湿度)相关,而与气温相关性不大.野生大豆种子雨的空间分布格局主要是野生大豆种子炸荚的自身习性(炸荚弹力)和荚本身在植株上的空间分布有关,而与风向(风力≤7级)关系不大.

关键词: 野生大豆, 种子雨, 光合特征, 河套灌区, 滴灌, 覆膜, 玉米

Abstract: Studies on the temporal and spatial dynamics of Glycine soja seed rain and its relationship with meteorological factors show that there are three peaks in the course of pod exploding and seed dispersing, which are related to fine day (relative humidity), but little to temperature. The temporal distribution pattern of seed dispersal is depended on the exploding habit(exploding force) of pod and its location on the plant, but has no relation to wind direction(wind force≤rank 7 on the Beaufort scale).

Key words: Glycine soja, Seed rain, drip irrigation, photosynthetic characteristics, Hetao Irrigation District, mulching, maize