doi:10.16186/j.cnki.1673-9787.2020040016

Received:2020/04/06

Revised:2020/06/07

Published:2021/11/15

Detection and impact analysis of land surface temperature abrupt change in Shendong mining area based on BFAST algorithm

LI Yuanyuan 1,2, WANG Cangjiao 1,2, LEI Shaogang 1,2, GUO Yangnan3

1.Institute of Land and Resources， China University of Mining and Technology ，Xuzhou  221116， Jiangsu， China;2.Engineering Research Center of Mine Ecological Restoration， Ministry of Education， Xuzhou  221116 ， Jiangsu， China;3.Coal Technology Research Institute， Shenhua Shendong Coal Group Co. ， Ltd. ，Shenmu  719315 ， Shaanxi， China

Abstract:In order to obtain the long-term change trend of the surface temperature in the Shendong mining are-a ， and to extract the characteristics of abrupt changes in the surface temperature ， MOD11A2 synthesized by 16 day maximum temperature from 2000 to 2018 was used as the data source to perform regression analysis and to fit the changing trend of time series of land surface temperature in Shendong mining area. The BFAST algorithm （breaks for additive seasonal and trend ）was used to extract the temporal and spatial distribution characteristics of land surface temperature abrupt change ， the maximum abrupt occurrence time ， and the abrupt magnitude. On this basis ， the relationship between abrupt change of land surface temperature and land cover change was analyzed by means of spatial superposition statistics. The results showed that:From 2000 to 2018 ， due to the increase in overall vegetation coverage in the Shendong mining area ，98.63% of land surface temperature in themining area showed a downward trend； The land surface temperature abrupt change ratio in open pit mining area was higher than that in underground mining area ， the proportions of land surface temperature abrupt change area in open mining area and underground mining area were 34.66% and 19.02% respectively ， which was at-tributed to the fact that open pit mining had more disturbance to the surface than underground mining； Land surface temperature abrupt change was caused by land cover change ， however ， the direction and magnitude of land surface temperature change depended on factors such as the type and scale of land cover change. The re-search results could provide a scientific basis for ecological environment management and evaluation in mining area.

Key words:land surface temperature abrupt change;BFAST algorithm;MOD11A2;Shendong mining area

 基于BFAST算法的神东矿区地表温度突变检测及影响分析_李园园.pdf