基于层次分析法的土地生态敏感性评价

Ecological sensitivity evaluation of land based on analytic hierarchy process

为促进区域经济高质量发展,为城市发展划定生态线,制定科学合理的发展政策。以安顺市西秀区为例,采用层次分析法(AHP)与地理信息系统(GIS)空间分析方法结合,主要选取坡度、高程、土地利用、植被覆盖度、水域缓冲区这5个因子对西秀区土地生态敏感性进行单因子评价和多因子的综合评价分析。结果表明,西秀区的生态敏感性较高,空间分布差异明显,极敏感区与高敏感区占全区总面积的54.37%,且多数分布在植被覆盖度较高的山地区域,研究表明西秀区的土地呈现高敏感性。该研究旨在为西秀区绿色低碳高质量发展提供参考,为区域生态环境保护和建设提出建议。

This study aims to promote high-quality regional economic development,delineate ecological lines for urban development,and formulate scientific and reasonable development policies.By taking Xixiu District in Anshun City as an example,the analytic hierarchy process(AHP)and geographic information system(GIS)spatial analysis methods were combined to select five factors,including slope,elevation,land use,vegetation coverage,and water buffer zone,so as to conduct single-factor and multifactor comprehensive evaluation analysis on the ecological sensitivity of land in the Xixiu District.The results show that the ecological sensitivity of Xixiu District is high,with significant spatial distribution differences.The extremely sensitive and highly sensitive areas account for 54.37%of the total area of the region,and most of them are distributed in mountainous areas with high vegetation coverage.Research shows that the ecological sensitivity of land in the Xixiu District is highly sensitive.The study hopes to provide a reference for the green,low-carbon,and highquality development of the Xixiu District and propose suggestions for regional ecological environment protection and construction.