Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
a Height and b diameter growth with age of Picea abies modelled by applying the Gompertz function. c Linear relationship between tree height and diameter. Closed symbol in c was treated as outlier and not included in Pearson correlation. Corresponding r2 are indicated.
