Trends in vegetation productivity related to climate change in China’s Pearl River Delta

increased winter temperatures in the PRD region as noted above. For growing season, on the other hand, the negative correlations of cropland with temperature for growing season MGS and Peak NDVI are difficult to explain, especially given overall greening trends over the study period. Lag time analysis of NDVI with precipitation and temperature In correlating the NDVI time series with temperature and rainfall, correlations were calculated for different lag times for each ecosystem type, in 15-day intervals up to 150 days. Results Fig 6. Maps of partial correlation of temperature and rainfall with vegetation productivity metrics by season. Pixels with significant correlation (p � 0.05) are shown while insignificant pixels are removed. https://doi.org/10.1371/journal.pone.0245467.g006 PLOS ONE Climate and vegetation trends in the Pearl River Delta PLOS ONE | https://doi.org/10.1371/journal.pone.0245467 February 24, 2021 11 / 20