四川省土地整治项目时空分异格局分析

发布时间：2018-06-28 13:59

本文选题：土地整治 + 重心移动　；参考：《中国生态农业学报》2017年12期

【摘要】：从不同空间尺度分析特定时期土地整治项目的分布特征,可为制定下一阶段土地整治规划及优化空间布局提供决策参考。基于2011—2015年土地整治项目数据,以县域为评价单元,采用变异系数法、重心模型法和空间自相关模型法,探讨了四川省土地整治项目在不同空间尺度的分布特征,分析了重心转移和空间格局演变特征。研究表明:(1)从时间维度看,四川省土地整治项目总量呈下降趋势,项目绝对规模差异、相对规模差异逐步减小,呈现均衡化趋势。(2)不同空间尺度下土地整治项目具有不同特征。区域层面上,土地整治项目集中分布在盆地丘陵农用地整治区;市域层面上,项目主要集中在成都市和宜宾市,而甘孜藏族自治州、凉山彝族自治州和攀枝花市分布较少。(3)重心移动轨迹中所有重心点均落在盆地丘陵农用地整治区内,空间分布具有一定的地域均衡性。(4)土地整治项目在县域尺度分布存在较为显著的集聚性。高-高集聚区主要集中在盆地丘陵农用地整治区的东北部,低-低集聚区主要分布在川西北高山高原生态整治区。由于受项目区社会经济、人口、地形条件和政策的影响,四川省土地整治项目时空格局均衡性有待进一步提高。该研究明确了四川省土地整治规划重心在盆地丘陵农用地整治区,今后土地整治发展方向在于适时适度地开展川西南山地河谷农用地整治区、川西北高山高原生态整治区土地整治,有利于优化四川省土地空间开发利用格局。
[Abstract]:By analyzing the distribution characteristics of land regulation projects in different spatial scales, this paper can provide a decision reference for making the next stage of land regulation planning and optimizing spatial layout. Based on the data of land remediation projects in 2011-2015, the distribution characteristics of land reclamation projects in Sichuan Province at different spatial scales were discussed by using variation coefficient method, barycenter model method and spatial autocorrelation model method. The characteristics of the shift of gravity center and the evolution of spatial pattern are analyzed. The results show that: (1) from the perspective of time dimension, the total amount of land remediation projects in Sichuan Province shows a downward trend, the absolute scale of projects is different, the difference of relative scale gradually decreases, and presents an equalization trend. (2) Land remediation projects in different spatial scales have different characteristics. At the regional level, the land regulation projects are concentrated in the hilly agricultural land reclamation areas in the basin; at the municipal level, the projects are mainly concentrated in Chengdu and Yibin, while in Ganzi Tibetan Autonomous Prefecture, Liangshan Yi Autonomous Prefecture and Panzhihua City are less distributed. (3) all the barycenter points in the trajectory of gravity center are located in the basin hilly agricultural land regulation area. The spatial distribution has a certain geographical balance. (4) the distribution of land renovation projects in the county scale has a relatively significant agglomeration. The high-high agglomeration area is mainly concentrated in the northeast of the hilly agricultural land regulation area in the basin, and the low-low agglomeration area is mainly distributed in the northwest Sichuan alpine high-high primordial ecological regulation area. Due to the influence of social economy, population, topographic conditions and policies in the project area, the spatial and temporal balance of land regulation projects in Sichuan Province needs to be further improved. The study made it clear that the focal point of land regulation planning in Sichuan Province is in the hilly agricultural land regulation area of the basin. The future development direction of land regulation lies in developing the agricultural land regulation area in the mountain valley in the southwest of Sichuan Province in a timely and appropriate manner. The land regulation in the alpine and highland ecological control area of northwest Sichuan is beneficial to optimize the land spatial development and utilization pattern in Sichuan Province.
【作者单位】：四川农业大学管理学院;四川农业大学资源学院;
【基金】：国家科技支撑计划项目(2014BAL01B04)资助~~
【分类号】：F301.2

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