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冰川冻土 ›› 2014, Vol. 36 ›› Issue (4): 1017-1025.doi: 10.7522/j.issn.1000-0240.2014.0123

• 冻土水文效应及水利工程抗冻技术 • 上一篇    下一篇

青藏公路工程活动对沿线植被覆盖的影响

宋怡1,2, 金龙2, 陈建兵2   

  1. 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
  • 收稿日期:2014-03-22 修回日期:2014-06-06 发布日期:2014-08-23
  • 作者简介:宋怡(1982-),女,山东莱阳人,助理研究员,2011年在中国科学院寒区旱区环境与工程研究所获博士学位,现主要从事生态遥感方面的研究.E-mail:songyi@ieecas.cn
  • 基金资助:
    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

Study of the vegetation change due to the reinforcement and rebuilding along the Qinghai-Tibet Highway

SONG Yi1,2, JIN Long2, CHEN Jianbing2   

  1. 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
  • Received:2014-03-22 Revised:2014-06-06 Published:2014-08-23

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.

关键词: 青藏公路, 植被变化, 植被自我恢复

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.

Key words: Qinghai-Tibet Highway, vegetation change, vegetation self-recovery

中图分类号: 

  • U416