基于NDVI时间序列数据的河南省植被景观时空变化分析  

Spatial-temporal variation analysis of vegetation landscape in Henan Province based on NDVI time series data

作　　者：苏健 何占军 王力哲 王学 SU Jian;HE Zhanjun;WANG Lizhe;WANG Xue(School of Geography and Information Engineering,China University of Geosciences,Wuhan 430074,China;School of Computer Science,China University of Geosciences,Wuhan 430074,China;The Third Surveying and Mapping Institute of Hunan Province,Changsha 410018,China)

机构地区：[1]中国地质大学(武汉)地理与信息工程学院,武汉430074 [2]中国地质大学(武汉)计算机学院,武汉430074 [3]湖南省第三测绘院,长沙410018

出　　处：《测绘工程》2023年第4期29-36,58,共9页Engineering of Surveying and Mapping

基　　金：国家自然科学基金重点项目(U21A2013);国家自然科学基金面上项目(42171408);中国地质大学(武汉)“地大学者”人才岗位科研启动经费资助项目(2022127)。

摘　　要：基于2010—2019年MOD13Q1数据,结合景观格局理论知识,采用sen+mk趋势分析了2010—2019年河南省植被景观的时空变化规律,并阐明了植被覆盖分布变化趋势与典型植被景观格局指数的响应关系。结果表明,在空间上,河南省植被覆盖呈现由西向东由南向北逐渐降低的分布规律。河南省植被覆盖年均趋势变化总体上为不显著退化。三种景观指数10年间变化趋势增加,植被受干扰程度增加,植被覆盖等级结构发生变化,植被覆盖变化趋势与所选景观指数变化趋势呈负相关。Vegetation cover is an important indicator of ecological change.Based on MOD13Q1 data from 2010 to 2019 and combined with the knowledge of landscape pattern theory,the spatial and temporal changes in the vegetation landscape of Henan Province from 2010 to 2019 were analyzed using sen+mk trends to analyze the change pattern,and the response relationship between the change trend of vegetation cover distribution and the typical vegetation landscape pattern index was elucidated.The results show that,spatially,vegetation cover shows a distribution pattern of gradually decreasing from west to east and from south to north.The annual average trend change of vegetation cover in Henan Province was generally non-significant degradation.The three landscape indices showed an increasing trend over 10 years,with an increase in vegetation disturbance and a change in vegetation cover hierarchy,and a negative correlation between the change in vegetation cover and the selected landscape indices.

关 键 词：NDVI 时空变化 趋势分析 景观指数 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置] P28[自动化与计算机技术—控制科学与工程]