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中国沙漠 ›› 1997, Vol. 17 ›› Issue (4): 432-434.

• 研究论文 • 上一篇    下一篇

河西走廊中部农田防护林防风效应初探

刘建勋, 蔺国菊, 申桂莲, 李彩娟, 董国   

  1. 甘肃省张掖地区林果业研究所, 张掖 734000
  • 收稿日期:1996-04-30 修回日期:1997-01-05 出版日期:1997-12-20 发布日期:1997-12-20
  • 作者简介:刘建勋,男,生于1962年,农学学士,高级工程师,副所长。现主要从事林果业研究工作。

PRELIMINARY INVESTIGATION INTO THE WINDBREAK EFFECT OF FARM SHELTER-FOREST NETWORK IN THE CENTRAL SECTION AREA OF HEXI CORRIDOR

LIU Jian-xun, LIN Guo-ju, SHEN Gui-lian, LI Cai-juan, DONG Guo   

  1. Institute of Forestry and Fruit Research in Zhangye Prefecture, Gansu Province, Zhangye 7340000
  • Received:1996-04-30 Revised:1997-01-05 Online:1997-12-20 Published:1997-12-20

摘要: 单个农田林网的防风度为28.2%,而大面积连片农田防护林体系的建成,区域性防风效应更加显著。与建设初期相比,张掖、临泽和高台3县(市)防护林网的总防风度为42.8%,年大风日数降低68.4%,年沙尘暴日数降低66.1%。

关键词: 农田防护林, 单一林网, 防护林体系, 防风效应

Abstract: The windbreak degree of a single farmland wind-break forest network is 28.2%.The regional windbreak effect of large area and relating farm shelter-forest network is proved to be more obvious:the unit windbreak degree of whole wind-break forest network in Zhangye,Linze and Gaotai county is 42.8%;the annual days of gale and sand-dust storm are reduced by 68.4% and 66.1% individually,comparing with the data before the establishment of wind-break forest network.

Key words: Farm shelter-forest network, Single forest network, Protective forest system Wind-break effect

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