Paper out in Environmental Research Letters on Alaskan Boreal Forest NDVI trends
Our paper Do recent NDVI trends demonstrate boreal forest decline in Alaska? was recently published in Environmental Research Letters as part of NASA’s Advances and Outcomes of ABoVE (the Arctic Boreal Vulnerability Experiment) collection.
In this study, we used NDVI time series data from Landsat (1999–2018) paired with surveys of 102 forest stands with known recent fire history to investigate the relationship between NDVI and forest structure during succession. We found that NDVI varies systematically with stand age as a result of successional changes in forest structure and composition and that the proportion of deciduous (broad-leaved) trees in the upper canopy is a better predictor of NDVI than leaf area index.
Check out below for some photos from our field surveys across Alaska!