广州市用地及景观格局时空演变特征分析

Analysis on the spatiotemporal evolution characteristics of land use and landscape pattern in Guangzhou City

为掌握广州市景观格局、土地覆被演变特征,本文以2000、2010、2020年广州市土地利用数据为基础,利用土地利用转移矩阵、景观指数,共同分析广州市土地覆被、景观格局演变特征。结果表明:1)广州市主要土地类型为建设用地与耕地;2)景观指数分析表明:斑块数量增加,广州市景观破碎化程度增加,研究区域趋于复杂化;3)多样性指数呈现缓慢增长趋势,用地趋于均衡发展。研究结果可为广州市用地规划及区域生态现状优化提供参考。

To grasp the landscape pattern and land cover evolution characteristics of Guangzhou City,based on the land use data of Guangzhou in 2000,2010,and 2020,the land use transfer matrix and landscape index are used in this article to jointly analyze the evolution characteristics of land cover and landscape pattern in Guangzhou.The results indicate that:1)The main land types in Guangzhou are construction land and cultivated one;2)Landscape index analysis shows that with the number of patches increasing,the degree of landscape fragmentation in Guangzhou increases,and the research area tends to be more complex;3)The diversity index shows a slow growth trend,and land use tends to develop in a balanced manner.This can provide reference for land use planning and regional ecological status optimization in Guangzhou City.