The Spatial Effect of Administrative Division on Land-Use Intensity
The Spatial Effect of Administrative Division on Land-Use Intensity
复制标题
行政区划对土地利用强度的空间效应
DOI：
10.3390/land10050543
复制
发表时间：
2021-05
期刊：
影响因子：
3.9
通讯作者：
Zhang WT
中科院分区：
文献类型：
--
作者：
Wang PR;Zeng C;Song Y;Guo L;Liu W;Zhang WT
土地利用集约度是区域土地利用效率的最直接表现之一。城市群跨行政区绿地研究对土地可持续发展、新型城镇化和国土空间规划具有重要意义。本研究以长江中游中国城市群为个案研究区域，从区域行政区划、潜在驱动机制、空间相互作用或制约等方面探讨区域经济的空间溢出效应。首先，利用建设用地占行政区域总面积的比例指数来测算土地利用效率。其次，在县级行政区划体制下，依据皇后型邻接标准确定县级行政单位之间的邻接关系。在此基础上，构建了空间建模的空间权重矩阵。最后，利用“空间邻接矩阵”构建了一个空间模型来考察行政单元的影响因素和潜在的空间相互作用或约束。结果表明，不同县级行政单位的LUI水平差异较大，2010-2017年县级行政单位间的LUI差距拉大。单位土地固定资产投资(FAIL)、人均国内生产总值(PGDP)和第三产业比重(PTS)是LUI的驱动因素。县级行政单位之间既有基于合作关系的显著且不断增强的空间互动效应，也有因竞争而产生的相互制约的影响。直接空间溢出效应显著。今后应考虑行政区划下各行政单位之间的互动效应，促进区域城市土地的合理利用和优化布局，实现土地资源的优化配置。
Land-use intensity (LUI) is one of the most direct manifestations of regional land use efficiency. The study of cross-administrative LUI in urban agglomerations is of great importance for the sustainable development of land, new urbanization, and territorial spatial planning. In this study, the urban agglomeration in the middle reaches of the Yangtze River in China was used as the case study area to explore the spatial spillover effect through the administrative division, underlying driving mechanism, and spatial interactions or constraints of LUI. First, LUI was measured using the index of the proportion of construction land to the total area of the administrative region. Second, the adjacency relationship of the county-level administrative units was identified on the basis of the queen-type adjacency criterion under the county-level administrative division system. Thereafter, spatial weight matrix for spatial modeling was constructed. Last, a spatial model using the “Spatial adjacency matrix” was devised to examine the influencing factors and the potential spatial interactions or constraints of administrative units. Results revealed that the level of LUI of different county-level administrative units were quite different, and the gap of LUI among county-level administrative units widened from 2010 to 2017. The fixed asset investment per land (FAIL), gross domestic product per capital (PGDP), and proportion of tertiary sector (PTS) are the driving factors of LUI. County-level administrative units not only had a significant and increasing spatial interaction effect based on the relationship of cooperation, but also had an influence of restraint mutually which was caused by the competition. The direct spatial spillover effect was remarkable. In the future, the effect of interaction among administrative units under the administrative division should be considered to promote the reasonable use and optimal layout of regional urban land to realize the optimal allocation of land resources.
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