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冰川冻土 ›› 2017, Vol. 39 ›› Issue (5): 1137-1149.doi: 10.7522/j.issn.1000-0240.2017.0126

• 生态经济与可持续发展 • 上一篇    下一篇

黑龙江省漠河地区土地覆被与地表温度时空变化特征研究

陆妍1,2, 喻文兵1, 郭明1, 刘伟博1   

  1. 1. 中国科学院 西北生态环境资源研究院 冻土工程国家重点实验室, 甘肃 兰州 730000;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2017-09-01 修回日期:2017-10-05 出版日期:2017-10-25 发布日期:2018-01-27
  • 通讯作者: 喻文兵,E-mail:yuwb@lzb.ac.cn E-mail:yuwb@lzb.ac.cn
  • 作者简介:陆妍(1989-),女,甘肃兰州人,2014年在兰州理工大学获硕士学位,现为中国科学院西北生态环境资源研究院在读博士研究生,从事寒区环境与工程方面的研究.E-mail:luyan@lzb.ac.cn
  • 基金资助:
    冻土工程国家重点实验室自主课题(SKLFSE-ZT-21);国家重点基础研究发展计划(2012CB026102);国家自然科学基金项目(41571070)资助

Spatiotemporal variation characteristics of land cover and land surface temperature in Mohe County, Helongjiang Province

LU Yan1,2, YU Wenbing1, GUO Ming1, LIU Weibo1   

  1. 1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-09-01 Revised:2017-10-05 Online:2017-10-25 Published:2018-01-27

摘要: 以我国高纬度多年冻土区漠河县城区及郊区862 km2的区域为研究对象,基于RS和GIS技术对该区地表覆被变化和地表温度进行研究。结果表明:地表类型和地表温度反演结果与现场比对结果一致;从1988年到2015年,经过火灾后重建和城镇化发展,建设用地面积增加了11.33 km2;以2015年为例,冬季由于积雪覆盖,有79.02%的区域无植被覆盖,夏季有80.91%的区域为高植被覆盖。冬季地表温度和高程具有高度相关性,高程每升高100 m,地表温度平均升高2.27℃,表明该区地表温度也存在显著的逆温现象。该区城镇热岛效应全年存在,城镇区域地表温度高于全区平均值,夏季最显著,最高温差可达6.37℃。地表温度与NDVI具有明显的负相关关系;不同土地利用类型地表温度由低到高的顺序为水体-林地-草地-裸地-建筑用地。

关键词: 多年冻土区, 地表温度, 遥感, 逆温, 热岛效应

Abstract: In this paper, the Xilinji Town, Mohe County of Heilongjiang Province and its surrounding areas have been taken as study area. The land use type and land surface temperature was gained from the Landsat Satellite images based on the RS and GIS techniques. Spatiotemporal variation characteristics and the influencing factors of the land surface temperature over the study area in 1988, 2000, 2010 and 2015 and in different seasons in 2015 were analyzed and discussed. The results indicated that the land use classification and retrieved land surface temperature were accurate and reasonable. From 1988 through 2015, after a post fire reconstruction and urbanization, the construction land area had increased by 11.33 km2. There were 79.02% of the land surface without plants in winter because of snow cover, and over 80% of the land surface with high vegetation cover in summer. The surface temperature of the urban was usually higher than the average surface temperature of the whole area, with a temperature difference up to 6.37℃ mostly in summer. In winter, the land surface temperature significantly correlated with elevation, with an averaged land surface temperature gradient of 2.27℃ per 100 m. Besides, NDVI was negatively related to land surface temperature; the surface temperature of different use types was from low to high order of water-woodland-grassland-naked land-building land.

Key words: permafrost regions, land surface temperature, remote sensing, temperature inversion, heat island effect

中图分类号: 

  • TU411