What question did this study set out to answer?

The study aims to compare the effectiveness of different vegetation indices in estimating phenological changes across the Yellow River Basin.

May 3, 2026SHILAP Revista de lepidopterología0 citationsOpen Access

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Differences in Phenological Estimation From Multi-Vegetation Indices Across the Yellow River Basin.

QYQinyue Yu YBYan Bai YWYì Wáng

Key Points

The study aims to compare the effectiveness of different vegetation indices in estimating phenological changes across the Yellow River Basin.
Assessment of upturn date (UD), stabilization date (SD), and response date (RD) across various vegetation indices.
Contrast analysis of trends in PPI, kNDVI, and EVI within sub-regions of the basin.
70% of the Yellow River Basin showed an advancing trend in the DD of PPI.
Significant delays in RD were observed primarily in the west-central region.
PPI demonstrated improved performance in detecting autumn senescence compared to other indices.

Abstract

). In addition, widespread advances were observed in upturn date (UD) and stabilization date (SD), primarily in the transitional zones between forest and grassland sub-regions, along with significant delays in the RD across the west-central region of basin. Furthermore, 70% of the YRB exhibited an advancing trend in the DD of PPI, which contrasted distinctly with the trends observed for kNDVI and EVI. These findings suggest improved performance of PPI in detecting autumn senescence and provide valuable insights into the potential of various VIs for LSP retrievals.

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Cite This Study

Yu et al. (Fri,) studied this question.

synapsesocial.com/papers/69f6e6478071d4f1bdfc6e40 https://doi.org/https://doi.org/10.1002/ece3.73601

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