四川省森林康养基地可达性及其影响因素研究

Study on Accessibility of Forest Health and Wellness Base in Sichuan Province and Its Influencing Factors

森林康养基地是发展森林康养的重要平台和指示器。基于可达性视角,采用栅格成本加权距离算法测算了四川省273处森林康养基地的可达性,利用地理探测器剖析了其可达性的影响因素,结果表明:①森林康养基地空间分布呈现核心—边缘和东多西少的特征;②森林康养基地可达性总体较好,平均可达时间为1.53 h,可达时间等级分布基本呈现随时间增加,分布面积占比逐渐降低的线性趋势,可达性总体空间分布呈现东优西劣格局,县域可达性表现为更加明显的自东向西逐渐变差的梯度分异规律;③森林康养基地的影响因素解释力由大到小依次为:海拔、路网密度、A级景区密度、人口密度、基地密度、坡度、人均GDP,各因素的交互作用均强于单因素作用,而在所有交互作用关系中,海拔与其他因素的交互作用最强,是产生交互作用的最主要因素。

Forest health and wellness base is an important platform and indicator for developing forest health and wellness.Based on the accessibility perspective,the grid cost weighted distance algorithm is used to calculate the accessibility of 293 forest health and wellness bases in Sichuan Province,and the geographic detector model is used to analyze the influencing factors of accessibility.The results show that:①The spatial distribution of forest health and wellness bases presents the characteristics of core-edge and more in the east and less in the west;②The accessibility of forest health and wellness bases is generally good,with an average reachable time of 1.53h.Furthermore,the grade distribution of reachable time basically shows a linear trend of increasing with time.The proportion of distribution area gradually decreases,and the spatial distribution of overall accessibility shows a pattern of superior in the east and inferior in the west.In addition,the accessibility of counties shows a more obvious gradient differentiation law of gradual deterioration from east to west;③The explanatory power of the influencing factors of the forest health and wellness base from strong to weak is altitude,road network density,A-level scenic spot density,population density,base density,slope and per capita GDP.Moreover,the interaction of each factor is stronger than that of the single factor.Among all the interaction relationships,altitude has the strongest interaction with other factors,which is the most important factor of interaction.