融合交通驱动因子的RF-CA-Markov土地利用演化模型
汤文 , 李慧君 , 郑小毅 , 陈玲娟 , 王竹 , 徐琳
中南民族大学学报(自然科学版) ›› 2025, Vol. 44 ›› Issue (04) : 475 -483.
融合交通驱动因子的RF-CA-Markov土地利用演化模型
RF-CA-Markov land use evolution model with integrated transporation driving factors
为探究城市交通系统对土地利用格局的影响,选取道路网密度、可达性、道路距离、公共交通站点距离四种交通因素,融入RF-CA-Markov模型,模拟2010—2020年武汉市蔡甸区土地利用格局的演化进程,并结合土地利用转移矩阵与景观指数分析交通因素对模型精度的影响.结果表明:与未考虑交通因素的RF-CA-Markov模型相比,模拟结果Kappa系数与OA值明显提高,在土地演化模拟中考虑交通因素可显著提高模拟精度;与自然发展情景相比,交通因素介入情景中建设用地的转移地区主要集中于交通设施附近且便利程度大的区域,交通因素介入下景观的复杂程度更高,斑块分散更加均匀.
In order to investigate the influence of urban transportation system on land use patterns, four traffic factors including road network density, accessibility, road distance and public transportation station distance were selected and incorporated into the RF-CA-Markov model to simulate the evolution of land use patterns in Caidian District of Wuhan City from 2010 to 2020. The effects of transportation factors on model accuracy were analyzed using land use transition matrices and landscape indices. The results indicated that compared with the RF-CA-Markov model without considering transportation factors, the simulation results of Kappa coefficient and OA value were significantly improved. The simulation accuracy can be significantly improved by considering traffic factors in land evolution simulation. Compared with the natural development scenario, the transfer area of construction land in the traffic factor intervention scenario was mainly concentrated in the area near the transportation facilities with high convenience, the complexity of the landscape is higher, and the dispersion of patches is more uniform under the intervention of traffic factors.
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国家社会科学基金资助项目(20CGL018)
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