森林工程2026，Vol.42Issue(5)：933-943,11.DOI:10.7525/j.issn.1006-8023.2026.05.005
2000-2025年鹤岗市森林生态系统质量时空演变特征及归因分析
Spatiotemporal Evolution and Attribution Analysis of Forest Ecosystem Quality in Hegang City from 2000 to 2025
摘要
Abstract
To investigate the spatiotemporal evolution characteristics and driving mechanisms of forest ecosystem quality during the transformation of resource-exhausted cities,this study selected Hegang City as the research area.Based on long-term seamless Landsat time-series datasets and MODIS products,the ecological quality index(EQI)was con-structed.The Sen's slope estimator,Mann-Kendall test,and Hurst exponent were employed to analyze the spatiotempo-ral changes and future trends of forest EQI in Hegang from 2000 to 2025.Finally,the geographical detector model was used to quantitatively analyze the driving forces of natural and anthropogenic factors on the spatial differentiation of EQI.The results showed that,spatially,the EQI exhibited a significant distribution pattern of"high in the northwest and low in the southeast."The forest areas in the Lesser Khingan Mountains in the northwest showed excellent ecological qual-ity,whereas the southeastern plains and urban built-up areas,subject to intense human disturbance,had relatively lower quality.Temporally,64.9%of the total area showed an improving trend in EQI,mainly concentrated in the north-western forest-covered zones and central ecological restoration areas.Furthermore,52.71%of the area is projected to con-tinue improving in the future,while 34.49%of the degraded areas are primarily located along the urban expansion fringes.The driving mechanism analysis revealed that potential evapotranspiration(PET,q=0.548)was the dominant natural fac-tors explaining the spatial heterogeneity of EQI,followed by precipitation(q=0.429),while the human footprint product(HFP,q=0.295)was the most significant anthropogenic driver.The interactions between all factors demonstrated bi-factor enhancement and non-linear enhancement effects,with the interaction between PET and PM2.5 showing the strongest ex-planatory power(q=0.622).These findings can provide a scientific basis and decision-making support for the ecological restoration and sustainable development of resource-exhausted cities in the old industrial base of Northeast China.关键词
鹤岗市/EQI/时空演变/Hurst指数/地理探测器Key words
Hegang City/ecological quality index(EQI)/spatiotemporal evolution/Hurst exponent/geographical detector分类
农业科技引用本文复制引用
祝彦杰,江璟瑜,许谭,贾丽楠,金晟萱,董小琪,闫雪莲,邹歆蕙,乔宇娇..2000-2025年鹤岗市森林生态系统质量时空演变特征及归因分析[J].森林工程,2026,42(5):933-943,11.基金项目
黑龙江省省属科研业务费项目(SCZ2025-01 （）
SCZ2025-03 （）
SCZ2024-07). （）
