| 沙质海岸风口地段建立防护林关键技术研究 |
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| 引用本文： | 薛万华.沙质海岸风口地段建立防护林关键技术研究[J].防护林科技,2006(3):1-4. |
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| 作者姓名： | 薛万华 |
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| 作者单位： | 福建省闽侯南屿国有林场,福建,闽侯,350109 |
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| 摘 要： | 以福建省平潭的龙凤头与燕下浦两大风口为试验点,按照森林生态系统研究方法,揭示海岸大风变化与飞沙规律。研究结果表明:影响沙荒风口造林成功最主要是每年秋冬季的大风、飞沙和干旱三大因子;要在风口地段建立防护林,采用2年生木麻黄大苗营建的防护林,其成活率和保存率分别达到97.8%和92.2%,2年郁闭成林,5年郁闭度达到0.75以上,林分平均树高、胸径分别达到7.2 m和6.4 cm,可降低风速达87.5%,具有较好的防护效能;而采用1年生木麻黄小苗造林,保存率仅为26.8%,难以成林和发挥较好的防护效能。试验还表明,应用木麻黄小径材与枝条建造的风障是一种非常实用的防风固沙新技术,不仅效果好而且成本低廉。
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| 关 键 词： | 沙质海岸 风口地段 木麻黄 立地因子 关键技术 |
| 文章编号： | 1005-5215（2006）03-0001-04 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006年1月6日 |
Key Technology of Establishing Protection Forest at Wind Gap District of the Sandiness Shore |
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| XUE Wan-hua.Key Technology of Establishing Protection Forest at Wind Gap District of the Sandiness Shore[J].Protection Forest Science and Technology,2006(3):1-4. |
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| Authors: | XUE Wan-hua |
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| Institution: | Nanyu State Forest Farm of Minhou County in Fujian Province, Minhou 350109 ,Fujian, China |
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| Abstract: | Longfengtou wind gap and Yanxiapu wind gap on Pingtan Island in Fujian Province were used as test sites.According to method of forest ecological system,laws of changes of gale and blow sand were revealed in this paper.The results showed that the three factors(gale,blow sand and drought) affect the success of forestation on sandy wasteland at wind gap district;To establish protection forest at wind gap,the survival rate and preserving rate reached 97.8% and 92.2% respectively while adopting 2-year-old matured seedling of Casuarina equisetifolia to establish protection forest;The stand is in crown closure after two years.Five-years crown density reaches 0.75%.The tree height and DBH reaches 7.2m and 6.4m respectively and can reduce wind speed by 87.5% and have better protective effect.Windbreak built by submarginal log and bough is a kind of well practical and new technology of protecting against winds and preventing sand from drifting.The technology not only obtained good results,but also got low cost. |
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| Keywords: | sandiness shore wind gap district Casuarina equisetifolia locality factors key technology |
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