%0 Journal Article
%T 基于MODIS EVI数据分析2001~2020年终南山植被变化特征<br>Analysis of Vegetation Variation Characteristics of MODIS EVI in Zhongnan Mountain from 2001 to 2020
%A 黄思玉
%A 常秋芳
%J Geographical Science Research
%P 727-737
%@ 2168-5770
%D 2023
%I Hans Publishing
%R 10.12677/GSER.2023.126069
%X 为了了解终南山植被EVI (增强植被指数)的时空变化特征，以MOD13A3数据为基础，基于Hurst指数分析法、稳定性分析法、趋势分析法等方法，探讨了终南山2001~2020年的EVI时空变化特征。结果表明：(1) 空间分布上，绝大部分区域多年平均EVI值在0.4~0.7之间，占总研究区面积的95.459%；时间变化上，终南山多年平均EVI值总体呈波动上升趋势，年均EVI增长率为0.0032/a。(2) EVI值稳定性分析结果表明，研究区EVI值波动较稳定，高波动与较高波动区域面积占比不足2%。(3) 用Hurst指数法结合EVI多年变化趋势综合分析可知，未来研究区EVI值预计以增长为主，预测会改善的区域占总研究区面积的81.225%。<br />
In order to understand the spatio-temporal change characteristics of vegetation EVI (Enhanced vegetation index) in Zhongnan Mountain, based on MOD13A3 data and Hurst index analysis, stability analysis and trend analysis methods, the spatio-temporal change characteristics of vegetation EVI in Zhongnan Mountain from 2001 to 2020 were discussed. The results showed that: (1) In spatial distribution, the average EVI value of most regions was between 0.4~0.7, accounting for 95.459% of the total study area; In terms of time variation, the annual average EVI value in Zhongnan Mountain showed a fluctuating upward trend, and the average annual EVI growth rate was 0.0032/a. (2) The stability analysis results of EVI value show that the fluctuation of EVI value in the study area is stable, and the proportion of the area with high fluctuation and high fluctuation is less than 2%. (3) The Hurst index method combined with the multi-year change trend of EVI shows that the EVI value in the future research area is expected to increase, and the predicted improvement area accounts for 81.225% of the total research area.
%K 终南山，EVI，相关性分析，植被覆盖<br>Zhongnan Mountain
%K EVI
%K Correlation Analysis
%K Vegetation Cover
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=77348