CAJ | 학술논문

为进一步揭示城市地表热环境的时空分异机制，利用遥感信息技术提取深圳市西部地区不同季节的地表温度、植被覆盖、不透水面、水分状况等下垫面特征参数，在此基础上分析地表热环境的季节变化特征及与下垫面生物物理参数的定量关系。结果表明：研究区地表热力景观的空间分布、强度随季节发生显著变化；不透水面指数、湿度指数与地表温度分别呈指数正相关、线性负相关且在不同季节表现稳定，而植被指数与地表温度呈非线性关系并随季节变化；多元线性逐步回归分析表明，不透水面对地表温度的调节作用最大、地表湿度次之、植被覆盖最小。
위진일보게시성시지표열배경적시공분이궤제，이용요감신식기술제취심수시서부지구불동계절적지표온도、식피복개、불투수면、수분상황등하점면특정삼수，재차기출상분석지표열배경적계절변화특정급여하점면생물물리삼수적정량관계。결과표명：연구구지표열력경관적공간분포、강도수계절발생현저변화；불투수면지수、습도지수여지표온도분별정지수정상관、선성부상관차재불동계절표현은정，이식피지수여지표온도정비선성관계병수계절변화；다원선성축보회귀분석표명，불투수면대지표온도적조절작용최대、지표습도차지、식피복개최소。
In order to reveal the mechanisms of spatial and temporal heterogeneity of urban surface thermal environment , the land surface characteristic parameters in different seasons in western Shenzhen including land surface temperature ( LST ) , normalized difference vegetation index ( NDVI ) , normalized difference impervious surface index ( NDISI ) , and normalized difference moisture index ( NDMI ) were obtained using remote sensing technology. The seasonal variations of land surface thermal environment and its quantitative relationship to biophysical parameters were also analyzed The results showed that significant seasonal variations were observed for the spatial pattern and intensity of thermal environment landscape in the study area. The positive exponential correlation was observed between NDISI and LST, while negative linear correlation between NDMI and LST. These two relations were stable with the seasonal variations. In contrast, the non?linear correlation was observed between NDVI and LST, which varies with the seasonal variations. The multiple linear stepwise regression analysis indicated that the regulating effect on LST decreased in the order:impervious surface area>surface wetness>vegetation cover.