摘要
基于萍乡市安源区高分辨率遥感影像解译获得的4期土地利用现状图,选取面积类、形状类和分布类等7个破碎度评价指标,采用多因素综合评价法对该区域工矿用地破碎度进行了评价,应用冗余分析法探讨了工矿用地破碎度变化与社会经济和区位因子之间的相互关系。结果表明:2003~2017年,萍乡市安源区工矿用地破碎度呈现不断减小的趋势,但各乡镇之间的破碎度变化情况不完全相同,工矿用地破碎区域分异明显;2003年的3个破碎度Ⅲ级区至2017年均转化为Ⅱ级区,且Ⅰ级区的数量近一半,工矿用地破碎度减小显著;煤炭采选业从业人数、煤炭采选业产值比重、煤炭采选业固投比重和距道路距离对工矿用地破碎度变化有正向影响,GDP、总人口和距城镇距离则呈现负向影响,破碎度的变化与研究区煤炭资源枯竭和经济转型有关。研究结果可以为研究区工矿用地整治和集约利用提供决策依据。
Based on the land use map extracted from high-resolution remote sensing images in Anyuan District,Pingxiang City,seven landscape indicators that can reflect the area,shape,and distribution fragmentation were chose.The industrial land fragmentation was evaluated by using multi-factor comprehensive evaluation method,and its correlation between socioeconomic and locational factors was clarified by redundancy analysis.The conclusions were drawn as follows:From^2003 to 2017,the industrial land fragmentation had a trend of decreasing in Anyuan District.Changes of industrial land fragmentation were not exactly same in every evaluation units,indicating an obvious regional differentiation.From^2003 to 2017,the 3Ⅲclass areas were all converted toⅡclass areas,andⅠclass areas account for nearly half,showing a significant decrease of industrial land fragmentation.The positive driving forces of industrial land fragmentation change were number of employees,proportion of output value,proportion of fixed-asset investment in coal industry,and distance to roads.The negative forces were GDP,total population,and distance to towns.The changes of industrial land fragmentation were related to coal resources exhaustion and economic transformation in the research area.The study could provide support of decision for industrial land consolidation and intensive use.
作者
汪龙
夏敏
文博
WANG Long;XIA Min;WEN Bo(College of Public Administration,Nanjing Agricultural University,Nanjing 210095,China)
出处
《江西农业学报》
CAS
2019年第8期126-133,共8页
Acta Agriculturae Jiangxi
基金
教育部人文社会科学研究一般项目(16YJAZH064)
江西省软科学研究计划重大项目(20161ACA10001)
关键词
资源枯竭型城市
工矿用地
破碎度
驱动力
Resources-exhausted city
Industrial land
Fragmentation
Driving forces
