2000~2019年佳木斯市主城区土地利用格局变化及驱动力分析

Analysis of Land Use Pattern Changes and Driving Forces in the Main Urban Area of Jiamusi City from 2000 to 2019

摘要: 本研究以佳木斯市主城区为对象，借助2000~2019年遥感数据，深入剖析土地利用格局变化的特征、驱动因素及作用机理。研究发现：1) 主城区土地利用结构发生显著变化，建设用地规模急剧扩张，从2000年的82.49平方公里增长到2019年的442.81平方公里，草地和耕地面积大幅减少，分别减少322.61平方公里和322.88平方公里，林地面积增加218.69平方公里，河流面积扩大65.8平方公里。2) 土地利用变化呈现阶段性差异，2000~2010年变化相对缓和，建设用地主要进行内部填充式开发；2010~2019年随着城市化进程加速，变化明显加快，建设用地大规模向外拓展。3) 驱动因素存在主次之分，人为因素是主导，政策导向、人口增长作用是关键，经济发展和交通建设是辅助，自然因素影响较小，且各因素对不同土地利用类型的影响存在差异。本研究为城市土地资源合理规划与可持续发展提供了重要参考。

Abstract: This study takes the main urban area of Jiamusi City as the object, with the help of remote sensing data from 2000~2019, deeply analyzes the characteristics, driving factors, and the mechanism of land use pattern changes. The study finds found: 1) the land use structure of the main urban area has changed significantly, the scale of construction land has expanded dramatically, growing from 82.49 square kilometers in 2000 to 442.81 square kilometers in 2019, the grassland and arable land areas have decreased dramatically, decreasing by 322.61 square kilometers and 322.88 square kilometers, respectively, the area of forested land has increased by 218.69 square kilometers, and the area of rivers has expanded by 65.8 square kilometers; 2) Land use changes show stage differences, with relatively moderate changes in 2000~2010, with construction land mainly undergoing internal infill development; and significantly accelerated changes in 2010~2019 with the acceleration of urbanization, with construction land expanding outward on a large scale; 3) There is a primary and secondary difference in the driving factors, with human factors dominating, policy orientation and population growth playing a key role, economic development and transportation construction assisting, and natural factors having less influence, and there are differences in the influence of each factor on different land use types. This study provides an important reference for rational planning and sustainable development of urban land resources.