| 浑善达克沙地高速公路沙袋沙障的综合防护效益研究 |
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| 引用本文： | 赵名彦,丁国栋,罗俊宝,曹波,张佳音,崔利强.浑善达克沙地高速公路沙袋沙障的综合防护效益研究[J].干旱区资源与环境,2009(7). |
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| 作者姓名： | 赵名彦 丁国栋 罗俊宝 曹波 张佳音 崔利强 |
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| 作者单位： | 北京林业大学教育部水土保持与荒漠化防治重点实验室;内蒙古交通设计研究院有限责任公司;内蒙古农业大学; |
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| 基金项目： | 内蒙古交通建设科技项目;;高等级公路路域生态环境建设试验示范研究(编号:NJ200419)资助 |
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| 摘 要： | 通过对207国道浑善达克沙地高速公路沙袋沙障综合防护效益进行分析,研究表明沙袋沙障的设置使风速降低比增加了18.96%~8.12%,地表粗糙度提高了825~140.6倍,输沙率减少了0.4~0.5 g.cm-2.min-1,有效减弱了近地层风沙话动的强度。同时沙袋沙障的设置显著提高人工植被的成活率和保存率,丰富度和Shannon-Wiener指数明显增大,土壤理化性质有明显的改善。综合分析表明1.0m×1.0m沙袋沙障的防护效果最为显著。
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| 关 键 词： | 浑善达克沙地 高速公路 沙袋沙障 防护效益 |
Study on comprehensive protecting efficiency of sand-bag obstacle of highway in Otindag Sandy Land |
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| ZHAO Mingyan,DING Guodong,LUO Junbao,CAO Bo,ZHANG Jiayin,CUI Liqiang.Study on comprehensive protecting efficiency of sand-bag obstacle of highway in Otindag Sandy Land[J].Journal of Arid Land Resources and Environment,2009(7). |
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| Authors: | ZHAO Mingyan DING Guodong LUO Junbao CAO Bo ZHANG Jiayin CUI Liqiang |
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| Institution: | 1.Key Laboratory of Soil and Water Conservation and Desertification Combating of Ministry of Education;Beijing Forestry University;Beijing 100083;P.R.China;2.Inner Mongolia Communications Design &Research Cooperation Limited;Hohhot 010010;3.Inner Mongolia Agricultural University;P.R.China |
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| Abstract: | The comprehensive protecting efficiency of sand-bag obstacle of 207 Nnational Highway section of Otindag Sandy Land was analyzed.The results showed that the sand-bag obstacles being used were greatly weakening the intensity of surface wind,decrease rate of the wind speed added by 18.96%-8.12%,the roughness of surface increased by 825-140.6 times compared original one;sand transport rate reduced by 0.4-0.5g·cm-2·min-1.Furthermore the survival rate,preservation rate,species richness and Shannon-Wiener index of vegetation within the sand-bag obstacles increased greatly;also the soil characters were improved.The study showed that sand-bag obstacle by 1.0 m× 1.0m was the best in protecting efficiency. |
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| Keywords: | otindag sandy land highway sand-bag obstacle protecting efficiency |
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