豫中地区蓝绿空间演化及其驱动因素研究——以河南省许昌市为例  

Blue-Green Spatial Evolution and Driving Factors in Central Henan Province-A Case Study of Xuchang City of Henan Province

作　　者：熊瑶[1] 陈亚娟 杨云峰 XIONG Yao;CHEN Yajuan;YANG Yunfeng(College of Art and Design,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)

机构地区：[1]南京林业大学艺术设计学院,江苏南京210037

出　　处：《西北林学院学报》2024年第6期197-206,共10页Journal of Northwest Forestry University

基　　金：国家自然科学基金面上项目(32171859);教育部人文社会科学研究青年基金项目(21YJCZH187);苏高校“青蓝工程”资助项目。

摘　　要：伴随着城镇化的迅速推进,城市蓝绿空间持续受到侵蚀,探究蓝绿空间演化特征及其驱动因素对生态环境、居民生活品质提升以及区域可持续发展具有重要意义。本研究基于河南省许昌市2000-2020年土地利用数据,应用土地利用转移矩阵、地学信息图谱等方法,探究了许昌市20年内蓝绿空间演化特征及其规律,并构建斑块级土地利用变化模拟模型(PLUS模型),解析各驱动因素对蓝绿空间演变的影响。结果表明:1)研究区在城市化背景下,各类用地转换频繁,蓝绿空间整体连通性降低、破碎度增大。2)研究区耕地面积缩减显著,达1041.6708 km^(2)。草地、林地、水域面积进一步变大,其中水域增加面积最大,为656.5630 km^(2),林地最小,仅增加87.9462 km^(2)。3)耕地减少区域主要集中于襄城县西南和东南,建安区北部和东部等区域,耕地面积主要转化为林地、草地和建设用地;水域扩张区域分布于长葛市中部、建安区中部和魏都区东部,主要由林地和耕地转入;草地面积呈“摊大饼”式均匀扩张;林地增量主要由耕地和草地转入。4)蓝绿空间演变是多种因素共同作用的结果。人口、农业生产总值等是耕地减少的主导因素;气温、坡度等对水域空间的保护与建设有一定正向作用;坡度、高程等自然因素与GDP等社会因素对草地的扩张有一定正向作用;林地主要受高程、降水、坡度及土壤的影响。研究结果对豫中地区制定科学合理的城市蓝绿空间发展战略、提高生态环境质量等具有一定的指导价值。With the acceleration of urbanization,the blue-green space(BGS)in cities is continuously encroached.Studying the evolution of BGS and the influencing factors is of crucial importance for comprehending the ecological environment,the improvement of residents'quality of life,and the sustainable development of the region.Based on the land use data of Xuchang City,Henan Province,from 2000 to 2020,this article explored the characteristics and patterns of BGS evolution in Xuchang in 20 years by applying the land use transfer matrix and geomorphological information mapping,and constructed a simulation model of land use change at the patch level(PLUS model)to analyze the influence of each driving factor on the evolution of BGS from the aspects of socioeconomic and natural factors.The results showed that 1)under the background of urbanization,all kinds of land use in the study area were converted frequently,and the overall connectivity of BGS decreased and the degree of fragmentation increased.2)Cultivated land in the study area shrank significantly,amounting to 1041.6708 km^(2).Grassland,woodland,and water body expanded further,with the area of the water body being the largest(656.5630 km^(2)),and woodland being the smallest(87.9462 km^(2)).3)The reduction of cultivated land was mainly concentrated in the southwest and southeast of Xiangcheng County,and the north and east of Jian'an District,where the cultivated land area was mainly converted into woodland,grassland,and construction land.The expansion of water body was distributed in the central part of Changge City,the central part of Jian'an District,and the eastern part of Weidu District,mainly from the woodland and cropland.The grassland area expanded uniformly in the form of“pie spreading”,and the expansion of woodland was mainly from the transformation of cultivated land and grassland.4)Various factors impacted the evolution of BGS.Population and gross agricultural output value were the dominant factors in the reduction of arable land.Temperature and slope had p

关 键 词：蓝绿空间 豫中地区 河南许昌 空间演化 景观格局 

分 类 号：TU984.115[建筑科学—城市规划与设计]