喀斯特区与非喀斯特区的地表温度与近地表气温差异分析

doi:10.11988/ckyyb.20221605

长江科学院院报 ›› 2024, Vol. 41 ›› Issue (3): 54-61.DOI: 10.11988/ckyyb.20221605

喀斯特区与非喀斯特区的地表温度与近地表气温差异分析

廖梦垚¹, 罗娅^1,2, 余军林³, 王青¹, 石春茂¹, 徐雪¹

1.贵州师范大学地理与环境科学学院, 贵阳 550025;
2.贵州师范大学贵州省喀斯特山地生态环境国家重点实验室培育基地, 贵阳 550025;
3.贵州省水利科学研究院,贵阳 550001

收稿日期:2022-11-29 修回日期:2023-04-06 出版日期:2024-03-01 发布日期:2024-03-05
通讯作者: 罗娅(1979-),女,贵州毕节人,教授,博士,研究方向为生态水文遥感与水土资源保护。E-mail: luoya2002@163.com
作者简介:廖梦垚(1997-),女,贵州遵义人,硕士研究生,研究方向为生态水文遥感与水土资源保护。E-mail: 575869432@qq.com
基金资助:
国家自然科学基金委员会-贵州省人民政府喀斯特科学研究中心项目(U1812401);贵州省科技计划项目(黔科合支撑[2020]4Y016);贵州省水利科技经费项目(KT202108)

Differential Analysis of the Relationship between Land Surface Temperature and Near-surface Air Temperature in Karst Area and Non-karst Area

LIAO Meng-yao¹, LUO Ya^1,2, YU Jun-lin³, WANG Qing¹, SHI Chun-mao¹, XU Xue¹

1. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550025, China;
2. State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550025, China;
3. Guizhou Provincial Water Conservancy Research Institute, Guiyang 550001, China

Received:2022-11-29 Revised:2023-04-06 Online:2024-03-01 Published:2024-03-05

摘要/Abstract

摘要： 地表温度与近地表气温的关系是识别下垫面与近地表大气相互作用的重要依据,对维持能量良好循环与改善气候环境具有重要意义。喀斯特区的自然背景与非喀斯特区有明显差异,陆地-大气间能量传输的规律在两类地区具有差异。基于近邻成对像元选择,获取贵州西南紫云、望谟两县2000—2018年的地表温度和近地表气温,并对比分析它们在喀斯特区与非喀斯特区的差异。结果表明:①就年平均状况而言,喀斯特区地表温度与近地表气温的差异及其波动性比非喀斯特区大,陆地-大气之间能量传输的稳定性为非喀斯特区大于喀斯特区。②从季节状况看,地表温度与近地表气温的差异在春、夏、秋三季为喀斯特区比非喀斯特区明显,冬季无明显差异;地表温度与近地表气温差异的波动性在冬季为喀斯特区大于非喀斯特区;喀斯特区陆地-大气之间能量传输的稳定性在4个季节均大于非喀斯特区。③从各月看,喀斯特区地表温度与近地表气温差异在各月均比非喀斯特区明显,差异波动性在4月份大于非喀斯特区,其余月份基本一致;除去3月份和4月份,其余各月的非喀斯特区陆地-大气之间能量传输均比喀斯特区稳定。结果可为研究气候变化、解析地表环境模式和保护生态环境等方面提供参考。

关键词: 地表温度, 近地表气温, 差异, 喀斯特区, 非喀斯特区

Abstract: The relationship between land surface temperature and near-surface air temperature serves as a critical foundation for understanding the interaction between subsurface and near-surface atmosphere, and is also vital for maintaining efficient energy circulation and enhancing climate environment. The natural characteristics of karst areas substantially differ from those of non-karst areas, resulting in divergent patterns of energy transfer between land and atmosphere in these distinct environments. Based on pairwise nearest-neighbor pixel selection, we acquired land surface temperature and near-surface air temperature data for Ziyun and Wangmu counties in southwest Guizhou from 2000 to 2018. Subsequently, we compared and analyzed the discrepancies between karst and non-karst areas. Our findings indicate that: 1) The disparities and fluctuations between land surface temperature and near-surface air temperature are more pronounced in karst area than in non-karst area on an annual average basis, with greater energy transfer stability observed in non-karst area. 2) In seasonal scale, the difference between land surface temperature and near-surface air temperature is more prominent in karst area than non-karst area during spring, summer, and autumn, albeit not in winter. Additionally, the fluctuation of the difference is greater in winter in karst area, with greater energy transfer stability in karst area throughout all four seasons. 3) As for individual months, the difference between land surface temperature and near-surface air temperature is more evident in the karst area compared to the non-karst area in each month, with greater fluctuations observed in April in the karst area. However, excluding March and April, energy transfer between land and atmosphere is more stable in non-karst area throughout the other months. The results can serve as a valuable reference for analyzing surface environmental patterns, studying climate change, and safeguarding the ecological environment.

Key words: land surface temperature, near-surface air temperature, differences, karst area, non-karst area

中图分类号:

K903

廖梦垚, 罗娅, 余军林, 王青, 石春茂, 徐雪. 喀斯特区与非喀斯特区的地表温度与近地表气温差异分析[J]. 长江科学院院报, 2024, 41(3): 54-61.

LIAO Meng-yao, LUO Ya, YU Jun-lin, WANG Qing, SHI Chun-mao, XU Xue. Differential Analysis of the Relationship between Land Surface Temperature and Near-surface Air Temperature in Karst Area and Non-karst Area[J]. Journal of Yangtze River Scientific Research Institute, 2024, 41(3): 54-61.

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喀斯特区与非喀斯特区的地表温度与近地表气温差异分析

Differential Analysis of the Relationship between Land Surface Temperature and Near-surface Air Temperature in Karst Area and Non-karst Area

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