摘要
为了评估保定市生境质量的时空变化特征并揭示其驱动机制,研究基于2000—2020年土地利用数据,采用InVEST模型评估生境质量的时空动态,运用Moran’s I指数分析其空间自相关格局,并借助地理探测器识别影响生境质量分异的主要因子及其交互作用.研究结果表明:研究区2000—2020年建设用地明显扩张,耕地和水体显著减少;保定市生境质量总体呈下降趋势,空间分布呈现“西高东低”的典型格局,高值区集中于太行山区的林草覆盖区域,低值区主要分布在东部平原的城镇与农业区;保定市生境质量的空间集聚程度呈下降趋势;高程、年平均气温、坡度等对生境质量空间分异影响效果显著.研究结果可为保定市土地资源优化利用和生态保护策略制定提供科学依据.
To assess the spatiotemporal changes in habitat quality and identify its driving mechanisms in Baoding city,this study utilized land use data from 2000 to 2020.The InVEST model was employed to evaluate the spatiotemporal dynamics of habitat quality,while Moran’s I index was used to analyze its spatial autocorrelation pattern.Additionally,the geographical detector method was applied to identify the main factors influencing the spatial differentiation of habitat quality and their interactions.The results indicate that from 2000 to 2020,construction land expanded significantly,while farmland and water bodies decreased markedly.The overall habitat quality in Baoding showed a declining trend,with a spatial distribution characterized by a typical“high in the west,low in the east”pattern.High-value areas were mainly concentrated in forest and grassland regions of the Taihang Mountains,whereas low-value areas were primarily distributed in urban and agricultural zones of the eastern plains.The spatial aggregation of habitat quality exhibited a decreasing trend.Factors such as elevation,annual average temperature,and slope had significant effects on the spatial differentiation of habitat quality.The findings can provide a scientific basis for optimizing land resource utilization and formulating ecological protection strategies in Baoding city.
作者
卫亚星
李雷菲
刘恩宇
WEI Yaxing;LI Leifei;LIU Enyu(School of Geography,Liaoning Normal University,Dalian 116029,China)
出处
《辽宁师范大学学报(自然科学版)》
2025年第4期463-471,共9页
Journal of Liaoning Normal University:Natural Science Edition
关键词
生境质量
InVEST模型
地理探测器
时空变化
影响因素
保定市
habitat quality
InVEST model
geographical detector
spatiotemporal change
influencing factors
Baoding city
