| 河西走廊中部农田防护林防风效应初探 |
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| 引用本文： | 刘建勋,蔺国菊,申桂莲,李彩娟,董国.河西走廊中部农田防护林防风效应初探[J].中国沙漠,1997(4). |
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| 作者姓名： | 刘建勋 蔺国菊 申桂莲 李彩娟 董国 |
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| 作者单位： | 甘肃省张掖地区林果业研究所 |
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| 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％。
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| 关 键 词： | 农田防护林 单一林网 防护林体系 防风效应 |
PRELIMINARY INVESTIGATION INTO THE WINDBREAK EFFECT OF FARM SHELTER FOREST NETWORK IN THE CENTRAL SECTION AREA OF HEXI CORRIDOR |
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| LIU Jian xun,LIN Guo ju\ SHEN Gui lian \ LI Cai juan \ DONG Guo.PRELIMINARY INVESTIGATION INTO THE WINDBREAK EFFECT OF FARM SHELTER FOREST NETWORK IN THE CENTRAL SECTION AREA OF HEXI CORRIDOR[J].Journal of Desert Research,1997(4). |
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| Authors: | LIU Jian xun LIN Guo ju\ SHEN Gui lian \ LI Cai juan \ DONG Guo |
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| 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. |
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| Keywords: | Farm shelter forest network\ Single forest network Protective forest system Wind break effect |
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