湖北农业科学 ›› 2022, Vol. 61 ›› Issue (1): 67-73.doi: 10.14088/j.cnki.issn0439-8114.2022.01.012

• 资源·环境 • 上一篇    下一篇

江苏省农村居民点时空变化特征及分区驱动差异

张宇, 赵姚阳   

  1. 河海大学公共管理学院,南京 210098
  • 收稿日期:2021-04-24 出版日期:2022-01-10 发布日期:2022-01-26
  • 通讯作者: 赵姚阳(1977-),男,浙江上虞人,副教授,主要从事土地资源与环境研究,(电子信箱)zhaoyaoyang@126.com。
  • 作者简介:张 宇(1996-),女,河南平顶山人,硕士,主要从事农村土地资源管理研究,(电话)18816217967(电子信箱)2076831733@qq.com。
  • 基金资助:
    教育部人文社会科学基金项目(17YJC630228); 河海大学中央高校基本科研业务费项目(2017B19314)

Spatio-temporal change characteristics and partition driven difference of rural construction land in Jiangsu province

ZHANG Yu, ZHAO Yao-yang   

  1. School of Public Administration of Hohai University,Nanjing 210098,China
  • Received:2021-04-24 Online:2022-01-10 Published:2022-01-26

摘要: 基于Landsat TM卫星遥感解译数据和社会经济数据,综合运用核密度估计、景观指数、地理探测器等方法,分析了江苏省2000—2018年农村居民点扩张的时空演变特征及苏南、苏中、苏北三大区域农村居民点扩张的驱动因子和驱动模式。结果表明,①江苏省农村居民点规模不断扩大,扩张速率呈波动下降趋势,2000—2005年扩张速率最快,为0.71%,2015—2018年扩张速率最低,为0.38%。②从农村居民点转移情况来看,2000—2018年共有2 853.76 km2其他类型土地转为农村居民点,其中87.9%来自耕地;农村居民点转出1 769.00 km2,其中66.5%转为城镇工矿用地,29.1%转为耕地。③从扩张程度看,2000—2018年农村居民点的扩张程度表现为苏北>苏南>苏中。其中扩张面积最大的是盐城、苏州、南通,均超过100 km2,最小的是徐州,扩张面积为18.21 km2。④从空间分布格局看,农村居民点核密度呈现出“多核心”的分布特征,空间分异显著;农村居民点斑块数量减少,密度下降,斑块连片面积增大,聚集指数上升。⑤乡村人口、农村人均收入、农业结构和农村两栖人口占比是江苏省农村居民点扩张的主要驱动因子。苏南、苏中、苏北三大区域农村居民点扩张的驱动模式可以概括为经济交通驱动、人口农业驱动和经济农业驱动3种类型。

关键词: 农村居民点, 时空变化, 驱动差异, 江苏省

Abstract: Based on the interpretation data of LANDSAT TM and socio-economic data, the spatial-temporal characteristics and driving mechanism of rural construction land expansion in Jiangsu province from 2000 to 2018 were analyzed by using kernel density estimation, landscape index and GeoDetector. The results showed that: ①The scale of rural construction land in Jiangsu province has been expanding continuously, and the expansion rate has fluctuated and decreased. The fastest expansion rate was 0.71% from 2000 to 2005, and the lowest expansion rate was 0.38% from 2015 to 2018. ②According to the situation of rural construction land transfer, from 2000 to 2018, a total of 2 853.76 km2 of other types of land were transferred to rural construction land, of which 87.9% came from cultivated land, and 1 769.00 km2 of rural construction land was transferred, of which 66.5% was transferred to urban industrial and mining land, 29.1% were converted to arable land. ③The expansion degree of rural construction land from 2000 to 2018 is as follows: northern Jiangsu > southern Jiangsu > Central Jiangsu. The largest expansion area is in Yancheng, Suzhou and Nantong, all over 100 km2, and the smallest is in Xuzhou, with an expansion area of 18.21 km2. ④According to the spatial distribution pattern, the kdensity of rural construction land presents the distribution characteristic of "Multi-core", the spatial differentiation is remarkable, the NP reduces, the PD decreases, the LPI increases, the AI increases. Based on the degree of expansion and aggregation, the expansion mode of rural construction land in 13 cities can be divided into seven categories. ⑤The main driving factors of rural construction land expansion in Jiangsu province are rural population, rural per capita income, agricultural structure and the proportion of rural amphibious population. The expansion of rural construction land in southern, central and northern regions of Jiangsu province can be generalized into three models: economic-transportation, population-agriculture and economic-agriculture.

Key words: rural construction land, spatio-temporal variation, partition driven difference, Jiangsu province

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