基于遥感大数据的龙门县2014~2021年植被动态变化及地形响应探究
Evaluation of the Dynamic Change of Vegetation and Its Topographic Response in Longmen County during 2014~2021 Based on Remote Sensing Big Data Applications
DOI: 10.12677/GSER.2022.114042, PDF,   
作者: 李坤熹：北京师范大学珠海校区文理学院，广东 珠海
关键词: NDVI；残差分析；石漠化；Hurst指数；地形效应；NDVI； Residual Analysis； Stone Desertification； Hurst Exponent； Topographic Effects
摘要: 本文探究了中国南方丘陵区以及矿产开发影响下的植被动态变化，运用趋势分析、Hurst指数以及残差分析方法对2014~2021年的龙门县NDVI动态变化特征进行探究。结果显示龙门县县域NDVI在时间上呈现微弱上升的变化，空间上正向趋势主要集中于东部地区，而负向以及不显著趋势主要集中在西部地区，县域Hurst指数在海拔高度上呈现“先减少后增加”的变化特征，在低海拔区表现持续性的原因主要为城镇扩张和矿产开发，在高海拔区表现持续性的原因主要为山地石漠化。
Abstract: This article evaluated the dynamic changes of vegetation in the southern China’s hilly areas where under the influence of mineral development, using trend analysis, Hurst exponent and residual analysis methods to explore the characteristics of the dynamic changes of NDVI in Longmen County during 2014~2021. The results show that the NDVI of Longmen County shows a slight increase in time, the positive spatial trend is mainly in the eastern part, while the negative and insignificant trend is mainly in the western part, and the Hurst exponent of the county shows a “decreasing and then increasing” change in altitude. The main reasons for persistence in the higher elevation areas are the expansion of towns and mineral development, and the main reason for persistence in the higher elevation areas is deteriorated mountains region.
文章引用：李坤熹. 基于遥感大数据的龙门县2014~2021年植被动态变化及地形响应探究[J]. 地理科学研究, 2022, 11(4): 426-432. https://doi.org/10.12677/GSER.2022.114042

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