Ecological Health Assessment of National Forest Parks Based on the Time Series Analysis of Multi-Source Remote Sensing Data
National forest parks are endowed with abundant natural resources and serve as crucial bastions for ecological security and supports of ecological and cultural heritage.A quantitative assessment of the ecosystem health of these national treasures is instrumental in propelling the development of ecological civilization and fostering the sustainable progress.Taking the Hunan Xuefeng Mountain National Forest Park as a paradigm,this study uses extensive time-series remote sensing data to meticulously analyze the spatio-temporal nuances of land use and land-scape transformations in the researched areas.Furthermore,it delivers a comprehensive evaluation of the ecosystem's overall health.The results indicate as follows.(1)From 2011 to 2022,the landscape witnessed an up-swing in the cultivated and construction lands,whereas forested areas,grasslands,and water bodies experienced a notable decline.(2)The overarching structure of the ecosystem exhibited a discernible growth trajectory,signaling a degree of stability in the system's structural integrity,albeit with some spatial heterogeneity.Notably,ecosystem structures in regions with lower values tended toward a more homogeneous composition.(3)The comprehensive functionality of the ecosystem demonstrated a subtle declining trend,with a noteworthy 50.91%of areas showcasing an upward trajectory.This suggests an overarching enhancement in the ecosystem's functionality across most regions.(4)The overall health of the ecosystem in the studied areas portrayed an upward trajectory,underscored by the marked spatial heterogeneity.Regions with higher values were predominantly situated in the northern and eastern sectors of Subao Peak in the middle section of Xuefeng Mountain,while lower-value areas were concentrated in the high-altitude regions of the primary middle section of Xuefeng Mountain.The research outcomes furnish substantive data support and a scholarly decision-making framework for the formulation of scientifically rigorous ecological con-servation policies within the designated region.
ecological health assessmentlandscape patternlong-term analysisthe Hunan Xuefeng Moun-tain National Forest Park
NETL
NSTL
万方数据
