| 播种深度对青藏铁路沙区植物白刺、油蒿、沙棘存活和生长的影响 |
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| 引用本文： | 任珺,陶玲,赵迎迎,余方可.播种深度对青藏铁路沙区植物白刺、油蒿、沙棘存活和生长的影响[J].西北林学院学报,2012(2):13-17. |
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| 作者姓名： | 任珺 陶玲 赵迎迎 余方可 |
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| 作者单位： | 兰州交通大学环境与市政工程学院环境生态研究所;甘肃高等学校环境科学与技术实验教学示范中心 |
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| 基金项目： | 铁道部科技研究开发计划课题(2008G013-B);甘肃省自然科学基金(1014RJZA043) |
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| 摘 要： | 研究了青藏铁路沙区植物白刺、油蒿、沙棘对不同播种深度的生长反应。结果表明:在播种2a和3a时,3种沙漠植物的成活率、植株高度和冠幅都随播种深度的增加而增加。油蒿在播种深度为6cm时的成活率最高,白刺在播种深度为2cm时植株高度最大,白刺的冠幅在播种深度为4cm时达到最大值。沙棘的植株高度和冠幅在播种深度为4cm时达到最大值。播种深度对白刺、沙棘和油蒿的存活和生长有显著的影响。研究结果对于青藏铁路沙区植被的人工恢复有一定的指导意义。
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| 关 键 词： | 青藏铁路 白刺 沙棘 油蒿 沙区 |
Influences of Sowing Depth on Survival and Growth of Nitraria tangutorum,Hippophae rhamnoides and Artemisia ordosica in Sandy Lands Along Qinghai-Tibet Railway |
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| REN Jun,TAO Ling,ZHAO Ying-ying,YU Fang-ke.Influences of Sowing Depth on Survival and Growth of Nitraria tangutorum,Hippophae rhamnoides and Artemisia ordosica in Sandy Lands Along Qinghai-Tibet Railway[J].Journal of Northwest Forestry University,2012(2):13-17. |
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| Authors: | REN Jun TAO Ling ZHAO Ying-ying YU Fang-ke |
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| Institution: | 1,2 (1.School of Environmental and Municipal Engineering,Institute of Environmental Ecology,Lanzhou Jiaotong University, Lanzhou,Gansu 730070,China;2.Demonstration Center for Experimental Teaching of Environmental Science and Technology in Colleges of Gansu Province,Lanzhou,Gansu 730070,China) |
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| Abstract: | Effects of sowing depth on the growth responses of Nitraria tangutorum,Hippophae rhamnoides and Artemisia ordosica in the sand areas along the Qinghai-Tibet Railway were investigated.The results showed that the survival rate,height and crown width of three plants increased with the sowing depth after 2,3 years of sowing.A.ordosica performd the highest survival rate under sowing depth of 6 cm,N.tangutorum performed highest height under sowing depth of 2 cm,and the height and crown width of H.rhamnoides were the biggest under sowing depth of 4 cm.Indicating that the sowing depth could significantly influence the survival and growth of three plants. |
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| Keywords: | Qinghai-Tibet Railway Nitraria tangutorum Hippophae rhamnoides Artemisia ordosica sandy desert |
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