| 青藏公路工程活动对沿线植被覆盖的影响 |
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| 引用本文： | 宋怡,金龙,陈建兵.青藏公路工程活动对沿线植被覆盖的影响[J].冰川冻土,2014,36(4):1017-1025. |
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| 作者姓名： | 宋怡 金龙 陈建兵 |
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| 作者单位： | 1. 中国科学院 地球环境研究所 黄土与第四纪地质国家重点实验室, 陕西 西安 710075;2. 中交第一公路勘察设计研究院有限公司 多年冻土区公路建设与养护技术交通行业重点实验室, 陕西 西安 710065 |
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| 基金项目： | 中国科学院“西部之光”博士项目(Y229051370);多年冻土区公路建设与养护技术交通行业重点实验室开放基金资助 |
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| 摘 要： | 利用2000-2012年的MODIS 增强植被指数（Enhanced Vegetation Index，EVI）数据，结合研究区3个气象台站长期的气象数据，分析了青藏公路沿线植被变化总体趋势，以及不同整修措施对周边植被覆盖带来的不同影响.通过实地考察，选取了16个受工程活动影响的典型路边样方，3个铁路边样方和8个远离公路铁路的自然样方，对比路边和自然样方，分析植被的自我恢复能力以及4个主要影响因子.结果表明：青藏公路沿线植被覆盖变化是在整个气候变化的背景下，叠加了工程活动的影响.植被的恢复能力与其所在路段的地形、植被覆盖度、气候条件、以及工程活动的强度均有关系，抑制植被生长的因素越多，植被恢复越慢.
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| 关 键 词： | 青藏公路 植被变化 植被自我恢复 |
| 收稿时间： | 2014-03-22 |
| 修稿时间： | 2014-06-06 |
Study of the vegetation change due to the reinforcement and rebuilding along the Qinghai-Tibet Highway |
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| SONG Yi,JIN Long,CHEN Jianbing.Study of the vegetation change due to the reinforcement and rebuilding along the Qinghai-Tibet Highway[J].Journal of Glaciology and Geocryology,2014,36(4):1017-1025. |
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| Authors: | SONG Yi JIN Long CHEN Jianbing |
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| Institution: | 1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;2. Key Laboratory of Highway Construction & Maintenance Technology in Permafrost Regions of Ministry of Transport, CCCC First Highway Consultants Co., Ltd, Xi'an 710065, China |
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| Abstract: | Enhanced vegetation index data of MODIS from 2000 to 2012 were used to analyze the vegetation change along the Qinghai-Tibet Highway. Combined with climate data, the suppression due to reinforcement/rebuilding projects was evaluated. Sixteen quadrates nearby highway, three quadrates nearby railway and eight original quadrates were selected to monitor. Comparing the monitored vegetation growths between quadrates nearby highway/railway and original quadrates, the self-recovery capability and its four impact factors are able to evaluate and analyze. It is found that the influence on vegetation along the Qinghai-Tibet Highway is due to climate change, superimposed with of reinforcement and rebuilding. The self-recovery ability of vegetation depends on terrain, vegetation, climate change and intensity of engineering activity. |
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| Keywords: | Qinghai-Tibet Highway vegetation change vegetation self-recovery |
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