湖州市景观破碎化时空演化及驱动力研究

Spatial-temporal Characteristics and Driving Factors ofLandscape Fragmentation in Huzhou City

为了合理利用土地资源,保护生态环境,文章以湖州市为例,基于2005年-2020年的土地利用遥感监测数据,运用景观格局指数、主成分分析、地理探测器等方法,研究景观破碎化时空变化特征,并初步探究景观破碎化空间分异成因。结果表明:湖州市景观破碎化程度总体呈增加趋势,2010年-2015年增加幅度最大;景观破碎化空间分异特征明显,东北部和东部平原区高于西南部和西北部山区。体现出湖州市对土地资源的开发利用过程中尊重自然规律,保护自然环境的发展理念;景观破碎化空间分异受坡度影响最大,其次是建设用地强度。

In order to rationally utilize land resources,protect the ecological environment,this paper studies the spatiotemporal characteristics of landscape fragmentation and explores the causes of spatial differentiation of landscape fragmentation.Taking Huzhou City as an example,this study uses landscape pattern index,principal component analysis,and geo-detectorbased on the land use remote sensing monitoring data from 2005 to 2020.The results show that the degree of landscape fragmentation shows an increasing trend overall,and the increase is the largest from 2010 to 2015.The spatial differentiation of landscape fragmentation is obvious,with the northeastern and eastern plains higher than the southwestern and northwestern mountains,indicating Huzhou municipality s protection of nature in the process of land resource development and utilization.The spatial differentiation of landscape fragmentation is most affected by slope,followed by the construction land intensity.