Larch eco-physiological parameters, NDVI and climates data in July of the years in northeastern Siberia

Larch (Larix gmelinii) trees in the lowlands of the Indigirka River in northeastern Siberia were observed for five years (2009–2013). In situ photosynthesis was measured. Stem and needle-shaped leaf samples were collected to analyze individual mass, nitrogen content, and isotopic ratios of carbon (delta C-13) and nitrogen (delta N-15). Needle samplings were treated by acetone before delta C-13 measurement. Data for satellite-derived ecosystem indices and data for climatic factors for each site in 2009-2021 were also collected