...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental engineering and management journal >EVALUATION OF HIGHWAY CONSTRUCTION IMPACT ON ECOLOGICAL ENVIRONMENT OF QINGHAI-TIBET PLATEAU
【24h】

EVALUATION OF HIGHWAY CONSTRUCTION IMPACT ON ECOLOGICAL ENVIRONMENT OF QINGHAI-TIBET PLATEAU

机译：高速公路施工对青藏高原生态环境的评价

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study is designed in order to determine the impact of Zhadao highway construction on ecological environment of Qinghai-Tibet Plateau, by comparing the quality of ecological environment before and after highway implementation. An index system of ecological environment impact evaluation of highway area is established, including terrain slope, vegetation coverage, desertification index and land use type. With the help of data mining and grey correlation degree theory, an ecological environment comprehensive evaluation model of multi index is proposed. This study analyzes the scale score of each evaluation index, and establishes a quantitative ecological environment evaluation model for highway areas in the Qinghai-Tibet Plateau. Taking Zhadao Highway in study area as an example, the state before and during the construction of the highway in 2014 and 2017 is selected for comparing and analyzing. The results show that the ecological environment in study area is obviously affected by highway construction. Significantly changed sections are concentrated in construction areas and urban residents densely populated area along the highway. Affected by factors such as highway earthwork and human activities, soil erosion has intensified, vegetation coverage has decreased, desertification has become more severe, and the overall quality of the ecological environment changed from superior to inferior.
机译：本研究旨在通过比较高速公路实施前后生态环境的质量，以确定扎人公路建设对青藏高原生态环境的影响。建立了高速公路区生态环境影响评价的指标体系，包括地形坡，植被覆盖，荒漠化指数和土地利用类型。借助数据挖掘和灰色相关学位理论，提出了一种多指标的生态环境综合评价模型。本研究分析了每个评估指标的比例得分，并为青藏高原的公路区建立了定量生态环境评价模型。以学习区为例，为Zhadao公路作为一个例子，选择了2014年和2017年高速公路的建设前后的国家进行比较和分析。结果表明，研究区的生态环境明显受公路建设的影响。显着改变的部分集中在施工区和城市居民沿着公路的浓密地区。受公路土方和人类活动等因素影响，土壤侵蚀加剧，植被覆盖率下降，荒漠化变得更加严重，生态环境的整体质量从优于劣等。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号