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Growing season by normalised difference vegetation index (NDVI)

0.7 to 1

Zhou et al., 2001

LU = leaf unfolding; LC = leaf colouring; LF = leaf fall. * indicates mean of significant trends only.

LU = leaf unfolding; LC = leaf colouring; LF = leaf fall. * indicates mean of significant trends only.

Table 1.8. Changes in the timing of spring events, based on observations within networks.

Location

Period

Species/I ndicator

Observed changes (days/decade)

References

Western USA

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