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| 青藏公路多年冻土路段边坡植被种植试验研究 | |
| 引用本文： | 陈济丁,邓超,孔亚平,何子文.青藏公路多年冻土路段边坡植被种植试验研究[J].公路交通科技,2009,26(7). |
| 作者姓名： | 陈济丁 邓超 孔亚平 何子文 |
| 作者单位： | 1. 交通部科学研究院,北京,100029 2. 西藏自治区交通厅,西藏,拉萨,850001 3. 西藏自治区公路管理局,西藏,拉萨,850001 |
| 基金项目： | 交通部两部交通建设科技资助项目，青藏公路改建技术研究及应用示范资助项目 |
| 摘 要： | 针对青藏公路多年冻土路段高、寒、旱、风,植物生长期短,植被种植难度大的特点,在青藏公路开心岭路段的边坡,采用垂穗披碱草(Elymus nutans)和老芒麦(E.sibiricus)等植物混播,采用普通喷播及客土喷播工艺,开展了植被种植试验.结果表明,由于添加了当地的表土,客土喷播工艺能够在该地区公路边坡快速建立比较优良的植被.喷播当年,植被覆盖率可达27.3%,地上生物量(鲜重)和地下生物量(干重)分别达到76.3 g·m-2和72.2g·m-2;第5年,边坡植被覆盖率约为10.0%,地上生物量(鲜重)和地下生物量(干重)分别达到189.3 g·m-2和721.5 g·m-2.客土喷播工艺的植被建植效果明显优于普通喷播工艺.对于普通喷播,增加保水刺和凝结剂的用量,可提高植被建植效果.而添加纤维则作用不明显. |
| 关 键 词： | 环境工程 植被 喷播 多年冻土 青藏公路 边坡 客土 |
Experimental Study of Greening on Slopes of Qinghai-Tibet Highway in Permafrost Region |
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| CHEN Jiding,DENG Chao,KONG Yaping,HE Ziwen.Experimental Study of Greening on Slopes of Qinghai-Tibet Highway in Permafrost Region[J].Journal of Highway and Transportation Research and Development,2009,26(7). | |
| Authors: | CHEN Jiding DENG Chao KONG Yaping HE Ziwen |
| Institution: | 1.China Academy of Transportation Sciences;Ministry of Transport;Beijing 100029;China;2.Communications Department of Tibetan Autonomous Region;Lasa Tibet 850001;3.Highway Administration Bureau of Tibetan Autonomous Region;China |
| Abstract: | Because of high altitude,low temperature,dry and windy weather,it is very difficult to replant on the slopes along Qinghai-Tibet highway in permafrost region.A field experiment of greening was carried out on slopes of Qinghai-Tibet highway near Kaixinling Mountain.Seed mix of Elymus nutans,E.sibiricus,etc.were used for seeding.Ordinary spray seeding and foreign-soil spray seeding techniques were adopted for seeding test.The result shows that(1) artificial vegetation could be established very well on highway... |
| Keywords: | environmental engineering vegetation spray seeding permafrost Qinghai-Tibet highway slope foreign soil |
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