Research

Three lines of work, one field year, and a plot network that has to outlive everyone currently paid to look after it.

Statement

How I got here, and why I stayed

The longer answer, for anyone who is deciding whether to work with me.

I did not set out to spend three decades in the same forty hectares of spruce. I came to Storbäcken for one field season in 2004 to weigh some logs, and I am still weighing them.

I grew up in Trøndelag, in a valley where the forest was worked rather than admired, and I took a degree in Bergen because it was the furthest I could get from a chainsaw and still study trees. That lasted until my first proper field course, when a supervisor handed me a soil auger and told me to find out what was under the moss. What was under the moss turned out to be most of the carbon.

My doctorate was on deadwood: how long a fallen spruce takes to disappear, and what decides the answer. I marked logs in 1998 and 2004 and have been going back to them ever since. The half of the work nobody photographs is the half that matters - a tape, a density hammer, and a notebook that has to survive rain.

When Bengt Åkerlund retired in 2016 he left me the plot network he had started in 1994 and the twelve notebooks that came with it. Inheriting a long-term dataset is a peculiar kind of gift: you cannot change the protocol without breaking the series, so you are bound to somebody else's decisions for the rest of your working life. I have kept every one of them, including the ones I would not have made.

What I have added is openness. Every plot record from 1994 onward is now archived, cleaned and public, with mistakes annotated rather than quietly corrected. If somebody re-analyses it and finds I was wrong, that is the system working. The plots outlast all of us; the job is to hand them on in better order than we found them.

You cannot change the protocol without breaking the series, so you are bound to somebody else's decisions for the rest of your working life.
The Storbäcken plots under low cloud in early October
Fig. 2 Storbäcken in the first week of October, when the remeasure starts and the ground is still workable.

How the year runs

One working year

The same shape every twelve months. That repetition is the whole reason the series holds together.

September - October

The remeasure

Six weeks on foot with two students and a field assistant. Every plot, every marked stem, every log. Nothing is skipped because the weather is bad: skip one year and the series is worth less for the next thirty.

Produces

1,240 plot records, in pencil

November - December

Bench work

Cores dried, weighed, sieved and burned. The slow half nobody photographs, and where almost all the errors would enter if the protocol let them. Two people weigh, and the balance is calibrated every morning.

Produces

Soil carbon and bulk density

January - March

Entry and checking

The notebooks are typed up twice by different people and the two versions compared. Every disagreement is resolved against the paper, never against the spreadsheet, and anything the paper cannot settle is flagged rather than guessed.

Produces

A clean, versioned dataset

March - June

Analysis and writing

Where the papers get written, the grants get applied for and the students defend. Also where I teach, which is not a coincidence: the course material comes out of the same year's numbers, while they are still fresh enough to argue about.

Produces

Two or three manuscripts

July - August

Maintenance

Plot markers repainted, boardwalks repaired, loggers serviced, the archive deposited. Entirely unglamorous, and the only reason the plots are still findable after thirty-one years.

Produces

A network that still works

Methods

What I can actually do

Grouped by where it happens, with the qualifier that matters instead of a score out of ten.

In the field

  • Soil coring to 60 cm since 2004
  • Litter traps and decomposition bags since 2004
  • Flux chambers, static and dynamic since 2019
  • Deadwood density and decay class since 2004
  • Dendrometer bands since 2011
  • Water table dipwells and loggers since 2019

In the laboratory

  • Loss-on-ignition and elemental analysis routine
  • Bulk density and particle size routine
  • Wood density by X-ray densitometry since 2014
  • Fungal community sequencing with a collaborator
  • Stable isotopes 13C and 15N

With the numbers

  • R fifteen years, badly at first
  • Mixed and repeated-measures models lme4, brms
  • Bayesian change-point analysis since 2020
  • Geospatial work QGIS, sf, terra
  • Reproducible pipelines targets, git, tested

Everything else

  • Grant writing nine funded, eleven not
  • Doctoral supervision seven completed
  • Field course design and delivery since 2013
  • Data stewardship FAIR, DOI-minted, versioned
  • Norwegian, Swedish and English all three daily

Funding

Who pays for this

Awarded, held and accounted for. A long-term plot network costs about what one postdoc costs, forever.

Body Award Role Years Value
Nordic Research Council Boreal Carbon Programme Principal investigator 2023-2027 14.2 M SEK
Vinter Foundation Long-term plot infrastructure Principal investigator 2021-2026 8.6 M SEK
Nordic Research Council Peatland rewetting, paired mires Co-investigator 2019-2024 6.1 M SEK
Nordvik University Doctoral position, deadwood fungi Supervisor 2022-2026 3.4 M SEK
European Forest Network Deadwood synthesis working group Work package lead 2020-2023 1.9 M SEK
Held and administered since 2019 34.2 M SEK

Values are the sum awarded, not the sum spent, and none of it is confidential. Eleven other applications in the same period were unsuccessful; those are on the CV.