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南太行城镇群绿色空间时空演变与驱动因素分析

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探究绿色空间演变与驱动因素对于城镇群跨区域协同发展具有重要意义.以南太行城镇群为例,基于2000、2010、2020年土地利用和社会经济统计数据,采用动态度、转移矩阵、景观格局指数分析各类绿色空间的演变规律,通过皮尔森相关性和参数最优地理探测器分析驱动机制.结果表明:1)2000—2020年,南太行城镇群绿色空间面积呈下降趋势,耕地和草地面积持续减少,耕地大量转为建设用地;2)多数绿色空间的景观格局指数呈下降趋势;3)绿色空间面积指标与社会经济和自然环境指标相关性显著,地形因子解释力最高.综上可知,近20年各类绿地斑块数量降低、破碎度增加,景观连接性降低;城乡建设发展和自然环境条件是影响绿色空间演变的重要因素,地形地貌是山地城镇群绿色空间演变的直接驱动力.
Spatio-temporal Evolution and Driving Factors of Green Space in the Town Agglomeration of the South Taihang Mountain
To explore the spatio-temporal evolution and driving factors of green spaces is of great significance for coordinated trans-regional development of a town agglomeration.The research takes the town agglomerations of the south Taihang Mountain as the example and land use data and socioeconomic statistics in 2000,2010,and 2020 to analyze the evolution regularity using dynamic degree,transfer matrix,landscape pattern indices as well as the driving mechanism using Pearson correlation coefficient and Optimal Parameters-Based Geographical Detector.The results show that:1) From 2000 to 2020,the area of green spaces showed a decreasing trend,and the area of cropland and grassland continued to decline,and cropland had been transferred to construction land;2) The landscape pattern index of the most green spaces presented a decreasing trend;and 3 ) Green space area indicators were significantly correlated with social economy and natural environment indicators,and the terrain factor was the most capable of explanation.In conclusion,various types of green space patches have decreased in number,the fragmentation degree increased,and the landscape connectivity decreased in the past two decades,and urban and rural construction and natural environment conditions are the important factors affecting the evolution of green spaces,while topography is the direct driving force to the evolution of green space in mountains town agglomerations.

green spacespatiotemporal evolutionlandscape patternOptimal Parameters-Based Geographical Detectortown agglomeration of the south Taihang Mountain

李诗尧、李翅

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北京林业大学园林学院 北京 100083

绿色空间 时空演变 景观格局 参数最优地理探测器 南太行城镇群

2024

中国城市林业
中国林业科学研究院

中国城市林业

影响因子:0.467
ISSN:1672-4925
年,卷(期):2024.22(6)