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郑洛沿黄地区土地利用格局时空演变及驱动机制研究

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郑州、洛阳两市位于黄河中下游南岸,在河南省乃至黄河流域生态保护中具有特殊地位和作用,基于 1990 年、2000 年、2010年和 2022 年土地利用数据,结合PLUS模型,从土地利用动态度、转移矩阵、重心迁移、景观格局等方面探究了郑洛沿黄地区土地利用时空演变特征及驱动机制,结果表明:耕地和建设用地为研究区优势景观类型,32a间耕地面积大幅收缩,建设用地扩张且主要来源于耕地;林草地集中分布于研究区西部及南部地区,2000-2010 年耕地向水域的转化主要发生在北部黄河沿岸,建设用地重心向西南偏移并趋向辐射连片发展;耕地主导地位减弱且空间异质性增强,整体自然连续性下降,破碎化加剧;耕地减少和建设用地扩张主要受社会经济因素中人口密度影响,自然因素是生态用地变化的主要驱动力.
Spatial-Temporal Evolution and Driving Mechanisms of Land Use Pattern Along the Yellow River in Zhengzhou and Luoyang Cities
Located in the south bank of the middle and lower reaches of the Yellow River,Zhengzhou and Luoyang have a special position and role in the ecological protection of Henan Province and even the Yellow River basin.Based on the four periods'land use data from 1990 to 2022 and combined with the PLUS model,the paper analyzed the spatial-temporal evolution characteristics and driving mechanisms of land use in the area along the Yellow River in Zhengzhou and Luoyang cities from the aspects of land use dynamic degree,transfer matrix,migra-tion of gravity center and landscape pattern.The results show that arable land and construction land are the dominant landscape types.Over the past 32 years,the area of arable land has shrunk significantly,while construction land has expanded dramatically and mainly derived from arable land.Forestland and grassland are concentrated in the western and southern areas.From 2000 to 2010,the transformation of ara-ble land into water mainly occurs along the northern Yellow River coast.The gravity center of construction land moves to the southwest,and tends to contiguous development.The dominant position of arable land has weakened and spatial heterogeneity has increased.The overall nat-ural connectivity has decreased,and fragmentation has intensified.The decrease of arable land and expansion of construction land has mainly influenced by population density in socio-economic factors,and natural factors are the main drivers for the change of ecological land.

land use changedriving mechanismregion along the Yellow RiverPLUS modelZhengzhou CityLuoyang City

徐梦菲、孙一帆、汪霞

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郑州大学 建筑学院,河南 郑州 450001

土地利用变化 驱动机制 沿黄地区 PLUS模型 郑州市 洛阳市

河南省科技攻关项目河南省科技攻关项目

182102210177202102310256

2024

人民黄河
水利部黄河水利委员会

人民黄河

CSTPCD北大核心
影响因子:0.494
ISSN:1000-1379
年,卷(期):2024.46(11)