| 山西北部农田防护林的防风功能及结构研究 |
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| 引用本文： | 郭学斌.山西北部农田防护林的防风功能及结构研究[J].林业研究,2002,13(3):217-220. |
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| 作者姓名： | 郭学斌 |
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| 作者单位： | 山西省林业科学研究院 太原030012 |
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| 基金项目： | The study was supported by Shanxi Ninth Five-year Plan Project (No. 961016). |
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| 摘 要： | 山西北部地区处于毛乌素沙漠前沿,是暖温带落叶阔叶林向温带干旱草原的过渡带。20世纪50-60年代当地营造了大面积的小叶杨(Populus simonii)人工林,形成了以林网为主体的农田防护林体系,对防治农田土壤风蚀起到了重要的作用。近年来,在旧林带更新改造中,对林带结构、树种配置缺乏技术,表现出在营造林带中有较大盲目性。为了对防护林今后的发展提供科学依据和方法,1996-2001年作者在山西北部的朔州、大同等地设置了定位调查观测点,使用轻便式风速风向仪、通风干湿球温度计、地温计、玻璃皿对小叶杨不同结构林带的防风功能进行了调查研究。提出了农田防护林的设计应以树木展叶期的防风能力为指标,以疏透结构为最佳配置,初植株行距为2 m3 m,4-6行配置,5年后可形成疏透结构林带。表4参13。
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| 关 键 词： | 农田防护林 防风功能 林带结构 |
| 收稿时间： | 9 April 2004 |
Function and structure of the farmland shelterbelts in northern area of Shanxi Province |
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| Guo Xue-bin.Function and structure of the farmland shelterbelts in northern area of Shanxi Province[J].Journal of Forestry Research,2002,13(3):217-220. |
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| Authors: | Guo Xue-bin |
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| Institution: | (1) Shanxi Academy of Forestry, 030012 Taiyuan, P.R. China |
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| Abstract: | From the 1950s to 1960s, large area ofPopulus simonii shelterbelts system was established in northern area of Shanxi Province. For reconstructing the old shelterbelts, more attentions
should be paid to selecting suitable tree species and design of logical shelterbelts structure. In order to provide a profound
basis for the efficient establishment of shelterbelts, the study on function and structure of the farmland shelterbelts was
conducted in Shuozhou and Datong areas, both are semi-arid areas in Northern Shanxi Province during 1996–2001. The wind-control
effects of shelterbelts with different structures (close-spaced, wider-spaced, and widest-spaced) were investigated by portable
wind vane and anemometer, wet and dry bulb thermometer, ground thermometer, glass service instrument. The results showed that
the wind-control capacity of the shelterbelts during the leafing period should be thought as the criteria index in shelterbelts
established. The wider-spaced shelterbelt that was made of 4–6 rows of trees, with a spacing of 2.0 m×3.0 m, had the best
wind-control result.
Foundation item: The study was supported by Shanxi Ninth Five-year Plan Project (No. 961016).
Biography: GUO Xue-bin (1965-), male, senior engineer in Shanxi Academy of Forestry, Taiyuan 030012, P.R. China.
Responsible editor: Zhu Hong |
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| Keywords: | Shelterbelts Wind-control function Shelterbelts structure |
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