景观优势度值在生态环境影响评价中的应用

Application of Landscape Dominance Value in Ecological Environment Impact Assessment

应用景观生态学中的优势度值法,对高速公路改扩建工程穿越自然保护区景观和生态环境影响进行评价,对比分析了工程建设前后公路两侧各1 000 m评价区范围内景观格局情况。研究表明:工程施工前后评价区内景观优势度值未发生明显变化,工程建设对区域景观质量和完整性影响不大。因此,优势度值法可以定量分析景观格局变化,能够评价工程建设对自然保护区景观和生态环境的影响程度。

The dominance value method of landscape ecology is applied to evaluate the landscape and biodiversity impact of expressway reconstruction and expansion project crossing the nature reserve, and the landscape pattern of 1 000 m evaluation area on both sides of the highway before and after the project construction is compared and analyzed. The results show that: before and after the project construction, the landscape dominance value of the evaluation area has no obvious change, and the project construction has little impact on the regional landscape quality and integrity.Through the use of dominance value method, we can quantitatively analyze the changes of landscape pattern, so as to put forward more targeted protection and restoration measures to avoid the damage to the ecological environment.