西藏藏中地区电网建设生态环境影响及对策研究

Ecological Environment Impact and Countermeasures of Power Grid Construction in Tibet

西藏地区生态环境极为脆弱,随着电网建设大力进行,研究对生态环境的影响有重要意义。以藏中联网工程为例,研究电网建设对西藏藏中地区生态环境的影响。结果表明:(1)植被遭破坏,尤其是林地和草地;(2)穿越生态敏感区时,植被及野生动物受扰动;(3)动物生境破碎化;(4)施工开挖引起冻土性状改变;(5)生态景观改变。对此提出生态保护措施,以期为工程设计及生态保护提供依据。

The ecological environment in Tibet is extremely fragile. With the development of power grid construction in Tibet,it is important to study the impact of power grid construction on ecological environment.. In this paper,taking power grid interconnection project in middle of Tibet as an example,the impact of grid construction on the ecological environment in middle of Tibet are analyzed. The results show that（ 1） the surface vegetation will be destroyed,especially for woodland and alpine meadowland.（ 2） the vegetation and wild animals will be disturbed when the grid cross the ecological sensitive area.（ 3） the grid construction will lead to the habitat fragmentation of wildlife.（ 4） the excavation will change the local environmental conditions,which leads to the change of frozen soil properties.（ 5） the ecological landscape will change significantly. On this basis,in order to provide reference for engineering design and ecological protection,the ecological protection measures are put forward.