CAJ | 학술논문

利用热红外波段资料反演主城区地表温度,结合实地典型样地抽查,对绿地内乔木基干横断面积和与主城核心区地表温度进行相关分析.结果表明:在重庆市主城核心区以内的大范围内,在有损估计的情况下,地表温度(y)和乔木基下横断面积和(x)之间满足线性关系:y=0.463x+37.991(R=0.964 R~2=0.930 SigniF=0.000(<0.01)),即在主城核心区每公顷绿地中乔木基干横断面积和增加1 m~2,绿地内地表的温度可降低0.46℃,并对松树桥立交桥、北环立交及嘉陵江大桥北引桥下绿地进行实地观测分析,通过增加绿地内乔木基干横断面积和,可有效缓解区域内热岛强度.
이용열홍외파단자료반연주성구지표온도,결합실지전형양지추사,대록지내교목기간횡단면적화여주성핵심구지표온도진행상관분석.결과표명:재중경시주성핵심구이내적대범위내,재유손고계적정황하,지표온도(y)화교목기하횡단면적화(x)지간만족선성관계:y=0.463x+37.991(R=0.964 R~2=0.930 SigniF=0.000(<0.01)),즉재주성핵심구매공경록지중교목기간횡단면적화증가1 m~2,록지내지표적온도가강저0.46℃,병대송수교입교교、북배입교급가릉강대교북인교하록지진행실지관측분석,통과증가록지내교목기간횡단면적화,가유효완해구역내열도강도.
Land surface temperature in the main urban area of Chongqing was retrieved from thermal infrared band data and the resulting data were combined with those in field investigation of typical sample plots to be used in analysis of the correlation between the sum of basal area in the green belts and the land surface temperature (LST). The results showed that land surface temperature (y) was in a linear negative correlation with the sum of basal area (x) in the main urban area of Chongqing, i.e. y = -0.463 x+ 37.991(R=0.964 R~2=0.930 SigniF=0.000(<0.01), which implies that whenever x increases by 1 m~2/ha, the LST in the green belts will drop by 0.46 ℃. Field observation at 3 sites in Chongqing indicated that it is very effective to decrease the heat island effect by increasing the sum of basal area in urban environment.