山东建筑大学学报2025，Vol.40Issue(6)：25-33,9.DOI:10.12077/sdjz.2025.06.004
基于土地利用变化的青岛市景观格局及生态风险评价
Landscape pattern and ecological risk assessment of qingdao based on land use change
摘要
Abstract
Research on landscape patterns and ecological risk assessment is essential for promoting the rational use of regional land,and provides a scientific basis for developing effective ecological risk management policies.This study analyzes land use and landscape pattern changes in Qingdao and constructs an ecological risk index model to investigate the spatiotemporal characteristics of ecological risk from 1990 to 2020.The results indicate that cultivated land was the dominant land use type,followed by construction land.Land use changes primarily occurred in four categories:cultivated land,construction land,grassland and water bodies.In terms of landscape pattern,construction land exhibited the highest degree of fragmentation,while cultivated land consistently remained the dominant landscape type.Ecological risk levels in Qingdao showed a declining trend over time and exhibited a spatial pattern characterized by higher risk in the north and south,and lower risk in the central region.Spatial autocorrelation analysis revealed a strong positive spatial correlation of ecological risk across the city,with local spatial autocorrelation patterns primarily exhibiting low-low and high-high clustering.关键词
土地利用变化/景观格局/生态风险评价/时空特征Key words
land use change/landscape pattern/ecological risk assessment/spatiotemporal characteristics分类
天文与地球科学引用本文复制引用
LIU Zhaode,LIU Wenqi,YANG Song,CHEN Youchuan..基于土地利用变化的青岛市景观格局及生态风险评价[J].山东建筑大学学报,2025,40(6):25-33,9.基金项目
国家自然科学基金项目(51978388) （51978388）
