四川林业科技2026，Vol.47Issue(4)：39-48,10.DOI:10.12172/202601130003
黄河流域陕西段植被覆盖度时空变化与多尺度驱动机制分析
Spatiotemporal changes in vegetation cover and multi-scale driving mechanisms in Shaanxi section of the Yellow River Basin
尹代皓 1程俊松 2田倩 1何瑞 1何学高 3魏江涛3
作者信息
- 1. 四川省林业和草原科学技术推广总站,四川 成都 610082
- 2. 四川省林学会,四川 成都 610081
- 3. 国家林业和草原局西北调查规划院,陕西 西安 710048
- 折叠
摘要
Abstract
Shaanxi section of the Yellow River Basin is the key area for the high-quality development strategy of the Yellow River Basin,and it is of great significance to investigate its vegetation changes and driving forces for ecological protection and sustainable development of the Yellow River Basin.Based on the GEE platform,the vegetation cover data of the study area from 2000 to 2023 was estimated,and the variation coefficient,center of gravity migration model,trend analysis method,Hurst index and geographic detector were comprehensively used to reveal the spatiotemporal evolution patterns and driving mechanisms of vegetation in the study area.The results indicated that:(1)From 2000 to 2023,the vegetation cover(FVC)in the study area exhibited a significantly fluctuating upward trend,which reflecting overall vegetation improvement.Spatial differentiation was observed in the migration of vegetation centers across different coverage levels:centers for low and moderately low coverage(FVC≤0.4)shifted northeastward,while those for medium-high coverage(0.4<FVC≤1)moved northward.Regional vegetation coverage exhibited strong variability,with high-fluctuation zones(CV≥0.2)covering over two-thirds of the area,showing high spatial overlap with high-coverage zones.(2)Vegetation improvement trends were sustainable across most of the study area,though localized degradation risks exist in Weinan,Xianyang,and Yan'an.(3)The annual average precipitation had the strongest explanatory power(q=0.66),which was the dominant factor influencing FVC changes in the study area.The explanatory power of the interactions among all factors was greater than that of individual factor,indicating that the coupling of natural and social factors significantly influenced regional vegetation cover changes.These findings provide important reference value for ecological conservation and development in the Yellow River Basin.关键词
黄河流域陕西段/植被覆盖度/驱动因素/地理探测器Key words
Shaanxi section of the Yellow River Basin/vegetation coverage/driving factor/geographic detector引用本文复制引用
尹代皓,程俊松,田倩,何瑞,何学高,魏江涛..黄河流域陕西段植被覆盖度时空变化与多尺度驱动机制分析[J].四川林业科技,2026,47(4):39-48,10.
