Environment, vegetation and greenness (NDVI) along the North America and Eurasia Arctic transects

By D. Walker, H. Epstein, M. Raynolds, P. Kuss, M. Kopecký, G. V. Frost, F. J. Daniëls, M. Leibman, N. Moskalenko, G. Matyshak and 7 more. 2012

151 citations recorded by the source corpus.

Satellite-based measurements of the normalized difference vegetation index (NDVI; an index of vegetation greenness and photosynthetic capacity) indicate that tundra environments are generally greening and becoming more productive as climates warm in the Arctic. The greening, however, varies and is even negative in some parts of the Arctic. To help interpret the space-based observations, the International Polar Year (IPY) Greening of the Arctic project conducted ground-based surveys along two >1500 km transects that span all five Arctic bioclimate subzones. Here we summarize the climate, soil, vegetation, biomass, and spectral information collected from the North America Arctic transect (NAAT), which has a more continental climate, and the Eurasia Arctic transect (EAT), which has a more oceanic climate. The transects have broadly similar summer temperature regimes and overall vegetation physiognomy, but strong differences in precipitation, especially winter precipitation, soil texture and pH, disturbance regimes, and plant species composition and structure. The results indicate that summer warmth and NDVI increased more strongly along the more continental transect.

Subfields: Atmospheric Science

View Paper: https://www.semanticscholar.org/paper/fc40c3418c9707db2ab51fc8711a9cd6f97b82cf

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atmospheric Science

Citations in the corpus

Temperature modulates intra-plant growth of Salix polaris from a high Arctic site (Svalbard) (2013, background): “4) suggest that Svalbard, like many other arctic regions, is also experiencing an increasing shrub productivity in response to climate warming (Sturm et al. 2001; Tape et al. 2006; Callaghan et al. 2011; Naito and Cairns 2011; Myers-Smith et al. 2011b; Walker et al. 2012).”