2000-2020年莱州湾海岸带“三生”空间演变及其影响因素

EVOLUTIONS AND INFLUENCING FACTORS OF"PRODUCTION-LIFE-ECOLOGY"SPACE IN THE COASTAL ZONE OF LAIZHOU BAY FROM 2000 TO 2020

探究“三生”空间时空变化是优化国土空间布局和保护生态环境的重要依据。选取2000-2020年莱州湾海岸带三期土地利用数据,构建“三生”空间分类体系,采用转移矩阵、洛伦兹曲线、基尼系数等方法进行探究“三生”空间动态变化过程,运用地理探测器工具分析其驱动因素。结果表明:1)莱州湾海岸带生活空间面积扩张明显,生态空间面积缩减,沿岸滩涂面积呈逐年增加趋势;2)“三生”空间面积转移量递增,以生产空间向生活空间、生态空间向生产空间转移为主,其时空分布均衡度差异增大,生活和生产空间分布较均衡,生态空间分布相对不均衡;3)莱州湾海岸带“三生”空间格局演变受多因素的共同影响,自然环境因素主要影响生态空间的格局演变,人均GDP、城市绿化覆盖率和第一产业占比对“三生”空间整体变化影响力较强;“三生”空间各因子交互后的影响力大于单因子的单独作用力。

Exploring the spatial and temporal changes of"Production-Life-Ecology(PLE)"space is an important basis for optimizing the spatial layout of land and protecting the ecological environment.The three phase land use data of the coastal zone of Laizhou Bay from 2000 to 2020 were selected to construct the spatial classification system for the PLE space,and the transfer matrix,Lorenz curve,Gini coefficient and geographic probe were used to investigate the dynamic changes in the PLE space.Additionally,the geographical detector tool was used to analyze the driving factors.The results are as follows:1)The living space area of Laizhou Bay coastal zone has expanded significantly,while the ecological space area has decreased,and the coastal mudflat area has shown an increasing trend year by year;2)The transfer amount of PLE space area has increased,mainly from production space to living space and from ecological space to production space.The differences in the balance of spatiotemporal distribution have increased.The distribution of living and production space is relatively balanced,while the distribution of ecological space is relatively unbalanced;3)The evolution of the PLE spatial pattern in the coastal zone of Laizhou Bay is jointly affected by multiple factors.Natural environmental factors mainly affect the evolution of the ecological space pattern,while the per capita GDP,urban greening coverage and the proportion of primary industry have a strong influence on the overall changes in the PLE space.The influence after the interaction of various factors in the PLE space is greater than the individual effect of a single factor.