| 乌兰布和沙区人工绿洲农田防护林小气候效益与作物产量关系的研究 |
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| 引用本文： | 郝玉光,卢平.乌兰布和沙区人工绿洲农田防护林小气候效益与作物产量关系的研究[J].林业科学研究,1997,10(1):19-23. |
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| 作者姓名： | 郝玉光 卢平 |
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| 作者单位： | 工程师，内蒙古磴口县农业局华莱土瓜研究所 中国林业科学研究院沙漠林业实验中心 内蒙古磴口 015200 |
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| 基金项目： | “八五”科技攻关项目“三北”防护林体系区域性生态效益评价研究”部分内容 |
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| 摘 要： | 历经４ａ（１９９２－１９９５年）定位研究表明：试区林网内无叶期的防风效能为３９％－４０％，着叶期为５５．８％－５６．２％。气温降低０．６－０．８℃，最热月（７月）尤为明显，平均降低１．２℃，蒸发量降低２４．３％－２４．７％，相对湿度提高８％－１５％。干热风发生天数减少５８．８％，其中轻型减少３３．３％，重型减少８７．５％，在林网保护下，作物产量提高５．１４％，玉米纯增产量４６８ｋｇ／ｈｍ＾２，纯增
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| 关 键 词： | 造林 沙区人工绿洲 防护林 小气候 效益 |
| 收稿时间： | 1996/4/11 0:00:00 |
A Study on the Relationship of the Shelter-forest Microclimate Effects on Man-made Oasis and Crops Production in Wulanbuhe Sandy Region |
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| Hao Yuguang and Lu Ping.A Study on the Relationship of the Shelter-forest Microclimate Effects on Man-made Oasis and Crops Production in Wulanbuhe Sandy Region[J].Forest Research,1997,10(1):19-23. |
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| Authors: | Hao Yuguang and Lu Ping |
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| Institution: | Hao Yuguang,Lu Ping Engineer Desert Forest Expermental Centre,CAF Dengkou,Inner Mongolia 015200 Hualsishi Melon Research Institute of Agriculture Bureau,Dengkou County of Neimenggu |
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| Abstract: | Through 4-year study on the oriented spots,the results show that in the ex- perimental network the windbreak efficency is 39%~40% in leafless season and 55.8%~ 56. 2% in leaf season ;the temperature decreases by 0.4~0.6 C ,especially in July the hottest month, the temperature decreases by 1. 2 C ;the evapo-transpiration rate reduced by 24.3%~ 24.7% , the relative humidity increases by 8%~15%; the days of desiccating hot wind re- duced by 58.8%,of them, its light-duty type decreases by 33.3% and heavy-duty type by 87.5%. Under the protection of the network ,the output of crops increase by 5.14% and total increase has reached 468 kg/ha and 655.2 yuan/ha. The increasing rate of the output is 50 ~100% comparing with that of the farmland without forest network. |
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| Keywords: | man-made oasis in sandy region shelter-forest network microclimate effect |
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