You are here: NRS Home / Publications & Data / The ratio of NPP to GPP: evidence of change over the course of stand development

Publication Details

Publication Toolbox
  • Download PDF  (6.6 MB)
  • This publication is available only online.

The ratio of NPP to GPP: evidence of change over the course of stand development

Year Published

2001

Source

Tree Physiology. 21: 1015-1030.

Abstract

Using Scots pine (Pinus sylvestris L.) in Fenno-Scandia as a case study, we investigate whether net primary production (NPP) and maintenance respiration are constant fractions of gross primary production (GPP) as even-aged mono-specific stands progress from initiation to old age. A model of the ratio of NPP to GPP is developed based on (1) the classical model of respiration, which divides total respiration into construction and maintenance components, and (2) a process-based model, which derives respiration from processes including construction, nitrate uptake and reduction, ion uptake, plhoem loading and maintenance.

Keywords

Citation

Makela, Annikki; Valentine, Harry T. 2001. The ratio of NPP to GPP: evidence of change over the course of stand development. Tree Physiology. 21: 1015-1030.
Last updated on: March 31, 2008

NRS at a Glance