摘要
为科学评估定日机场建设项目对西藏珠穆朗玛峰国家级自然保护区生物多样性的影响,根据相关技术规范,从景观/生态系统、生物群落、种群/物种、主要保护对象、生物安全、社会因素方面对项目影响评价区进行调查和评价,分析评价建设项目对保护区生物多样性的影响程度,以期为保护区管理和项目建设决策提供科学依据,并有效减缓因项目建设对保护区生态环境带来的不利影响.结果表明:评价区分布有维管束植物14科25属28种,陆生野生脊椎动物58种,隶属于4纲14目24科;机场建设项目对珠峰保护区生物多样性影响指数(BI)为51.72,属于中低度影响.
Abstract
To scientifically assess the impact of the Dingri Airport Construction Project on the biodiversity of the Mount Qomolangma National Nature Reserve in Tibet,this study conducted surveys and evaluations in the project impact area from the perspectives of landscape/ecosystem,biological communities,populations/species,main conservation targets,biological safety,and social factors,according to relevant technical specifications.The analysis evaluates the extent of the project's impact on the biodiversity of the reserve,aiming to provide a scientific basis for the management of the reserve and decision-making for project construction,and to effectively mitigate the adverse effects on the ecological environment of the reserve caused by the project construction.The results show that there are 28 species of vascular plants belonging to 25 genera and 14 families,and 58 species of terrestrial wild vertebrates belonging to 4 classes,14 orders,and 24 families in the evaluation area.The Biodiversity Impact Index(BI)of the airport construction project on the Mount Qomolangma Reserve is 51.72,which is considered to have a moderate-low impact.