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

Annikki Makela; Harry Valentine

doi:10.1093/treephys/21.14.1015

Treesearch

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

Informally Refereed

Authors:

Annikki Makela, Harry Valentine

Year:

2001

Type:

Scientific Journal

Station:

Northern Research Station

DOI:

https://doi.org/10.1093/treephys/21.14.1015

Source:

Tree Physiology. 21: 1015-1030.

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Download (PDF 7.16 MB): https://research.fs.usda.gov/download/treesearch/13957.pdf

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

carbon balance, photosynthesis, pipe-model theory, modeling, respiration, Scots pine

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.