| 钟颖萍1
，杜云霞1,2*
，刘陈智3.海南岛土地利用变化对地表热环境的影响[J].海南师范大学学报自科版,2025,38(3):359-365 |
| 海南岛土地利用变化对地表热环境的影响 |
| Impact of Land Use Changes on Surface Thermal Environment in Hainan Island |
| |
| DOI：10.12051/j.issn.1674-4942.2025.03.014 |
| 中文关键词: 土地利用/覆被变化 热环境 海南岛 热力等级 |
| 英文关键词: land use/cover change thermal environment Hainan Island thermal level |
| 基金项目:国家重点研发计划项目（2023YFF1304600） |
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| 中文摘要: |
| 随着城市化进程的加快海南岛的土地利用/覆被发生了相当大的变化，林地不断减少，
城市建筑区不断增加，导致了城市热环境的变化。以海南岛作为研究区，基于MODIS地表温度产
品和Sentinel-2土地利用数据，通过土地利用转移矩阵和热力等级划分等方法，引入热效应贡献度
指数和相对地表温度等数据研究海南岛土地利用/覆被变化与热环境之间的关系。研究结果表明：
（1）海南岛的土地利用类型以耕地、建筑区、林地和水域为主，2017—2022年海南岛土地利用类型
的变化主要表现为建筑区、耕地和湿地增多，林地、水域和裸地减少，其中建筑区面积增加最多，林
地面积减少最多；（2）海南岛的热力等级以中温区和次高温区为主，其中中温区呈现出增加趋势但
分布较为分散，次高温区呈现出减少趋势且零散分布在海南岛周边地区，低温区和次中温区较集
中地分布在海南岛中部地区和西南地区，高温区面积占比最小并且变化较大；（3）不同土地利用类
型对海南岛热环境的影响存在较大的差异，耕地对海南岛的地表温度的升温作用是最明显的，建
筑区其次，林地对海南岛的地表温度的降温作用最为明显。 |
| 英文摘要: |
| With the acceleration of urbanization in the 21st century, significant changes have occurred in land use/cover
patterns on Hainan Island, characterized by continuous reduction of forest areas and expansion of urban built-up regions,
leading to alterations in the urban thermal environment. Taking Hainan Island as the study area, this research investigated
the relationship between land use/cover changes and thermal environment variations using MODIS land surface tempera⁃
ture products and Sentinel-2 land use data. Methods including land use transfer matrix and thermal intensity classification
were employed, supplemented by thermal effect contribution index and relative land surface temperature analysis. The re⁃
sults demonstrated that: (1) The main land use types in Hainan Island are farmland, built-up areas, forest land and water bodies. The changes in land use types in Hainan Island from 2017 to 2022 were mainly characterized by an increase in
built-up areas, farmland and wetlands, and a decrease in forest land, water bodies and bare land. Among them, the area of
built-up areas increased the most, and the area of forest land decreased the most. (2) The thermal zones in Hainan Island
are mainly the moderate temperature and the sub-high temperature zone. The moderate temperature zone shows an increas⁃
ing trend but is relatively scattered in distribution. The sub-high temperature zone shows a decreasing trend and is scat⁃
tered in the surrounding areas of Hainan Island. The low temperature zone and the sub-moderate temperature zone are
more concentrated and distributed in the central and southwestern regions of Hainan Island, while the area of the high tem⁃
perature zone is the smallest and has the greatest variation. (3) Distinct land use types exerted markedly different impacts
on the thermal environment. Croplands demonstrated the most significant warming effect on land surface temperature (LST),
followed by built-up areas, whereas forest lands exhibited the strongest cooling effect. |
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