National Survey of Forest Soils and Vegetation

Updated 2017-10-16


This project has been divided into two new projects: The Swedish Forest Soil Inventory and the Swedish National Forest Inventory.

The Swedish National Forest Inventory has the task of describing the state and changes in Sweden's forests. The inventory gathers basic information on forests, soils and vegetation. It includes most aspects concerning soils, for example: soil types, soil chemistry including organic matter, water conditions and content of stones and boulders. Acidification, nitrogen deposition and the contribution by soils to climate change are some of the current issues dealt with. Regularly reported variables are: forest state, injuries, and growth, logging operations, new forest stand, and environmental assessment. Invented variables on permanent sampling plots include: position in the landscape, field vegetation, site conditions, soil sampling, assesment of soil characteristics, chemical analysis of soil in O-, B-, BC- and C-horizons.

This is a National Implementation Plan (NIP) project
Comments and additional information:

Monitoring proceeds in five-years intervals. Forest State variable include list of tree species, wood dimension, maturity class, and tree age. The forest injuries variable are described by needle loss and tree injuries. The new forest stand are defined as an age of forest clearings and thicket stage. The environmental assessment includes an old growth forest, large trees and deciduous intermixtures, and coarse woody debris reporting. Invented variables on permanent sampling plots include field vegetation (state and development of 267 species and species groups, and coverage of 71 species and species groups), site condition (moisture class, moving soil water, plot exposition, plot surface inclination, site quality index, degree of influence from forestry operations, the cultural influences, boulder frequency), and soil characteristic by asses of type of soil, texture, humus form, degree of humification, thickness of humus layer. The soil sampling is up to 1 m depth on some permanent plots. Soil sampled from different horizons is analysed for pH, N, C, CEC, heavy metals. The position in the landscape are described in relation to county borders, municipality borders, roads, arable lands, and water. Chemical soil analysis of mineral soil from C-horizon include macro-elements, micro-elements and loss on ignition, and from O-, B-, BC- and C-horizon: pH, exchangeable Ca, Mg, Na, K; C, N, S.

Time frame

Terminated before completion
Project time span
1987 - 2099
Data collection
1987 - 2010
Data processing
1987 - 2010
Data reporting
1987 - 2010

Contact information

Contact person
Johan Stendahl

Swedish University of Agricultural Sciences (SLU), Dept. of Soil and Environment, Box 7001 750 07 Uppsala Sweden

+4618 67 3801, cell: +73 151 3053
+4618 67 3470
Other project contacts

Jonas Fridman Swedish University of Agricultural Sciences, Dept. of Forest Resource Management Phone: +4690-786 84 73 (cell: +70 678 40 52) Fax: +4690-778116 e-mail: Contact at Swedish EPA: Ola Inghe Phone: + 4610 698 1571 E-mail: and Jonas Rodhe Phone: + 4610 698 1307 Fax: + 4610 698 1585 E-mail:

Parameters and Media

Parameter groups measured/observed/modelled
Acidification parameters
Biological effects
Heavy metals
Other metals/elements
Media sampled/studied/modelled
Higher plants
Additional information or further specification of types of data / information collected, species / tissues / organs sampled, etc.

tree, vegetation, plant species, landscape, site condition, micro-elements, macro-elements,


Regions studied
Other metals/elements
Other metals/elements
Other metals/elements
Other metals/elements
Other metals/elements
Other metals/elements

Data availability

Are data archived or planned to be archived at an AMAP Thematic Data Centre?
If no (or only part of data are reported to a TDC), where and how are (other) data stored?

Results, mainly as maps, are readily available in an internet-based information system called "Markinfo" ( well as on SLU's homepage

References to key publications (or planned publications) and data reports

Reports are available on SLU's websities: (

Samples/specimens archived in specimen banks?
Specimen banking information

For information contact project leaders: and

Methods & Procedures

Procedures and methodology used for, e.g., sampling and sample storage, sample pretreatment, extraction and analysis, including which laboratories are involved, references to methods employed, etc.

For information contact project leaders: and

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Other institutes involved in the project

Swedish EPA,

Is this project reporting to other organizations/programmes?

Swedish EPA;

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