Temporal and spatial changes of vegetation coverage in the five northwestern provinces in the past 20 years based on MODIS_NDVI

Xiuyan Feng; Dong Yang; Hong Wang; Yanpeng Yang

doi:10.1117/12.2627327

22 April 2022 Temporal and spatial changes of vegetation coverage in the five northwestern provinces in the past 20 years based on MODIS_NDVI

Xiuyan Feng, Dong Yang, Hong Wang, Yanpeng Yang

Author Affiliations +

Proceedings Volume 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021); 121634V (2022) https://doi.org/10.1117/12.2627327
Event: International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 2021, Nanjing, China

Abstract

Based on the trend analysis and mutation analysis methods of the MODIS NDVI data set from 2000 to 2019, the characteristics of the temporal and spatial changes of vegetation coverage in the five northwestern provinces are analyzed.The results show that: (1) Affected by climate, topography and geomorphology, the vegetation coverage of the five northwestern provinces has obvious spatial differences, and the overall trend is increasing from northwest to southeast. The seasonal NDVI is summer, autumn, spring and winter in order from large to small. (2) Vegetation coverage in Northwestern Province has shown an overall steady increase in the past 20 years, but there are obvious differences within the year, with the fastest growth in summer vegetation. (3) The improved area (69.2%) of vegetation coverage in the past 20 years is much larger than the degraded area (4.00%), with obvious regional differences.

Citation Download Citation

Xiuyan Feng, Dong Yang, Hong Wang, and Yanpeng Yang "Temporal and spatial changes of vegetation coverage in the five northwestern provinces in the past 20 years based on MODIS_NDVI", Proc. SPIE 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 121634V (22 April 2022); https://doi.org/10.1117/12.2627327

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