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应用生态学报 ›› 1996, Vol. 7 ›› Issue (1): 15-18.

• 研究论文 • 上一篇    下一篇

(强)热带风暴条件下农田林网对防止水稻倒伏及减产的效应

张纪林1, 康立新1, 季永华1, 冯福生2, 孙金林2   

  1. 江苏省林业科学研究所, 南京 211153;
    2. 江苏省如东县林业站, 如东 226400
  • 收稿日期:1994-02-01 修回日期:1995-06-06 出版日期:1996-01-25 发布日期:1996-01-25
  • 基金资助:

    国家"八五"科技攻关项目

Effect of farmland windbreak on preventing rice lodging and yield reduction under violent tropical storm

Zhang Jinn1, Kang Lixin1, Ji Yonghua1   

  1. Institute of Forestry Research of Jiangsu Province, Nanjing 211153
  • Received:1994-02-01 Revised:1995-06-06 Online:1996-01-25 Published:1996-01-25

摘要: 对江苏沿海地区(强)热带风暴条件下农田林网防止水稻倒伏和减产效应的研究表明,有林网农田的水稻倒伏率为16.28%,无林网农田为49.73%;水稻在灌浆结实期倒伏以后,千粒重减少13.24%,产量减少14.32%,有林网农田的水稻倒伏减产率为无林网农田的1/3.主林带林木保存率大于90%的林网抗倒度最大,水稻倒伏减产率最小.

关键词: 边缘效应, 农田林网, (强)热带风暴, 水稻, 抗倒度, 林窗, 马尾松人工林, 难降解物质

Abstract: Studies on the effect of farmland windbreak on preventing rice lodging and yield reduction under violent tropical storm in coastal regions of Jiangsu show that the percentage of rice lodging on the farmland with and without windbreaks is respectively 16.28% and 49.73%.If rice lodging is happened at the mildy stage,the thousand grains weight and the yield will be decreased by 13.24% and 14.32%,respectively.The yield reduction rate by rice lodging on the farmland with windbreaks is one third of that on the farmland without windbreaks.When the percentage of keeped trees of main windbreak is more than 90%,the resistance to rice lodging is the maximum,and the yield reduction rate from it is the minimum.

Key words: Farmland windbreak, Violent tropical storm, Rice, Resistance to lodging, Pinus massoniana plantation., edge effect, recalcitrant component, forest gap