ANALYSIS OF VEGETATION DYNAMICS IN BAICHENG DISTRICT, CHINA FROM SPOT-VEGETATION NDVI TIME SERIES USING WAVELET TRANSFORM

被引：0

作者：

Huang, Fang ^{[1
]}

Wang, Ping ^{[1
]}

Wu, Wenli ^{[1
]}

机构：

[1] Northeast Normal Univ, Sch Geog Sci, 5268 Renmin St, Changchun 130024, Jilin, Peoples R China

来源：

2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019) | 2019年

基金：

中国国家自然科学基金;

关键词：

Vegetation dynamics; NDVI; SPOT-Vegetation; wavelet transform; Baicheng district;

D O I：

10.1109/igarss.2019.8900256

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The vegetation dynamic change may provide vital information for ecological environmental protection and early warning of ecosystem degradation especially for the semiarid regions. Normalized Difference Vegetation Index (NDVI) can reveal the coverage growth condition, biomass and photosynthesis intensity of vegetation and land cover changes. The discrete wavelet multi-resolution analysis can decompose NDVI time series into subseries at different time scales. In this study, the information related to seasonal and inter-annual variability of vegetation in Baicheng city, China was extracted from SPOT Vegetation NDVI images using the wavelet multi-resolution analysis. The wavelet detail reconstruction information (d4) mainly reflected the seasonal changes, while the component d6 revealed the trend of inter-annual variation of vegetation.

引用

页码：6499 / 6502

页数：4

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