| 辽北平原防护林体系区域性防风效应的地转偏差分析 |
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| 引用本文： | 关德新,朱廷曜,邢云鹏,陈志骞.辽北平原防护林体系区域性防风效应的地转偏差分析[J].应用生态学报,2001,12(1):23-26. |
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| 作者姓名： | 关德新 朱廷曜 邢云鹏 陈志骞 |
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| 作者单位： | 1. 中国科学院沈阳应用生态研究所, 沈阳110016;
2. 辽宁省林业厅科教处, 沈阳110001 |
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| 基金项目： | 国家“九五”科技攻关(96-007-04-06-03)和辽宁省自然科学基金(972061)资助项目. |
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| 摘 要： | 利用东亚地面天气图和地面风的资料,用地转偏差方法,计算了辽河平原北部4县农田防护林体系的区域性防风效应,结果表明,随着防护林面积的增大,其防风效应增大;每天不同时间防风效应不同,14:00最大,2:00最小,平均为13.3%.还对地转偏差方法的特点进行了讨论.
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| 关 键 词： | 地转偏差 区域性防风效应 完全比值型植被指数 非比值型植被指数 地形效应 非完全比值型植被指数 几何光学模型 |
| 文章编号： | 1001-9332(2001)01-0023-04 |
| 收稿时间： | 1999-05-21 |
| 修稿时间： | 1999年5月21日 |
Geostrophic deviation
analysis of regional effects of protective forest system in reducing windspeed in north
Liaoning plain |
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| GUAN Dexin,ZHU Tingyao,XING Yunpeng.Geostrophic deviation
analysis of regional effects of protective forest system in reducing windspeed in north
Liaoning plain[J].Chinese Journal of Applied Ecology,2001,12(1):23-26. |
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| Authors: | GUAN Dexin ZHU Tingyao XING Yunpeng |
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| Institution: | Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | East Asian synoptic charts and ground wind data in April and May of four counties of north Liaoning plain were selected to calculate the regional effects of protective forest system in reducing windspeed by geostrophic deviation method. The results show that the protection effects increased with increasing forestration area. Different protection effects of protective forest appeared at different daytime, with the greatest at 14:00 and smallest at 2:00, and the average windspeed reduced 13.3%. The characteristics of the geostrophic deviation method was also discussed. |
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| Keywords: | Geostrophic deviation Regional protective effects of protective forest |
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