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生态学杂志 ›› 1990, Vol. ›› Issue (4): 20-23,28.

• 研究报告 • 上一篇    下一篇

人为调节涨水过程促使家鱼自然繁殖的探讨

曾祥胜   

  1. 长江流域规划办公室
  • 收稿日期:1988-08-15 修回日期:1988-11-19 出版日期:1990-08-10

Study on the Promotion of Natural Reproduction of Domestic Fish by Regulating Water Rising

Zeng Xiangsheng   

  1. Planning Office of the Changjiang River Basin
  • Received:1988-08-15 Revised:1988-11-19 Online:1990-08-10

关键词: 杉木, 生产力, 化感作用, 酚类物质, 自毒作用

Abstract: (1)Case studies are made in the Three Gorges Reservoir to learn the effects of regulatingwater rising on the natural reproduction of “domestic fish” in the mid-reaches of the Chang-jiang River.(2)According to practical survey,the relationship between amount of fry andfluctuation of water level is F=1.596+9.912H;and the relationship between water level andflux in Yichang station during last May to early June is H=47.374Q0.0582-37.483.(3) The proper time for water discharge in durations of artificial regulation is from last May to earlyJune;its proper amount is about 0.5m water rising per day,lasting for 4—6 days.(4)Areasonable control of water discharge in the Three Gorges Reservoir has no negative influen-ce on flood control,power generation and navigations.

Key words: Chinese fir, Productivity, Allelopathy, Phenolics, Autotoxicity