摘要
杭州市作为著名省会城市中的“国家生态园林城市”,探究城市土地利用时空格局演变与生境质量,对于实现区域内高质量发展具有重要意义。本文基于2000、2010、2020年土地利用数据,应用InVEST和PLUS模型预测并分析杭州市土地利用变化情况和探究其生境质量时空演变特征。结果表明:1)杭州市景观基质主要为林地和耕地,建设用地和水域次之,草地和未利用地占比相对较少。2000—2020年,建设用地持续扩张,涨幅130.13%,而耕地、林地则是流入的主要地类。2)在2000、2010、2020年,研究区生境质量均值分别为0.579 2、0.577 3、0.569 0,生境质量呈退化趋势。空间分布上,低等区域集中分布于中心城区和乡镇地区,高等区分布于西南部的山区林地,整体呈现东高西低的格局。3)2020—2030年,研究区土地利用类型和生境质量时空格局演变分布特征与2000—2020年的演变趋势基本一致。3种情景下,生境质量均值大小为生态保护情景>自然增长情景>经济发展情景。可见,要落实生态优先等政策、提高区域内用地结构的优化,才能实现经济社会高质量发展。
As a"national ecological garden city"among the famous provincial capital cities,it is of great significance for Hangzhou to explore the space-temporal pattern evolution of urban land use and habitat quality to achieve high-quality development in the region.Based on the land use data in 2000,2010 and 2020,InVEST and PLUS models are used to predict and analyze the land use changes in Hangzhou and explore the spatial and temporal evolution characteristics of habitat quality.The results show that:1)The landscape matrix of Hangzhou is mainly forest land and cultivated land,followed by construction land and water area,and the proportion of grassland and unused land is relatively small.From^(2)000 to 2020,construction land continued to expand,with an increase of 130.13%,while cultivated land and forest land were the main types of land inflow.2)In 2000,2010,2020,the mean value of habitat quality in the study area was 0.5792,0.5773 and 0.5690,respectively,and the habitat quality showed a degradation trend.In terms of spatial distribution,the lower areas are concentrated in the central urban areas and township areas,and the higher areas are distributed in the mountainous woodland in the southwest,showing the overall pattern of high in the east and low in the west.3)From^(2)020 to 2030,the evolution and distribution characteristics of land use types and spatial patterns of habitat quality in the study area are basically consistent with the evolution trend from^(2)000 to 2020.Under the three scenarios,the average size of habitat quality was the ecological protection scenario>natural growth scenario>economic development scenario.It can be seen that only by implementing ecological priority policies and improving the optimization of land use structure in the region can we achieve high-quality economic and social development.
作者
孙严超
蔡俊
李天龙
章磊
雷蕾
宋小杰
SUN Yanchao;CAI Jun;LI Tianlong;ZHANG Lei;LEI Lei;SONG Xiaojie(College of Economics and Management,Anhui Agricultural University,Hefei,Anhui 230036,China)
出处
《贵州师范大学学报(自然科学版)》
北大核心
2025年第1期79-88,114,共11页
Journal of Guizhou Normal University:Natural Sciences
基金
国家社会科学基金项目(71203054)
安徽农业大学2021年安徽乡村振兴战略研究中心项目(校科字[2021]10号)。
