600 – 1200 m
Overview
Plot-based soil monitoring
Forestland, wetlands, grassland,mountain areas
10 years sampling interval
Co-ordinated with the NFI
Initiated in 1983
Data collection
Field observations 20 000 plots
Humus soil sampling 10 000 plots
Mineral soil sampling 4 500 plots
DNA-based fungal inventory3500 plots
Laboratory work
2000 samples per year
13 000 analyses per year
Metabarcoding of fungal DNA
Applications
National environmental objectives
International reporting
Research
NATIONAL ENVIRONMENTAL MONITORING COMMISSIONED BY THE SWEDISH EPA
The Swedish Forest Soil Inventory
Stratified inventory
Field variables: ca 20 000 plots
Humus sampling
- ca 10 000 plots
Mineral soil sampling
- ca 4500 plots
Soil chemical analyses
Dry substance (105 °C) 2000
pH (H2O) 2000
pH (CaCl2) 2000
Total C, N, S (Dry combustion) 2000
Base cations (NH4Ac extraction, ICP/AES) 1500
Al (KCl extraction, ICP/AES) 1500
pH (KCl) 1500
Total Acidity (NH4Ac extraction) 1500
Approx.no./year
Totally ca 14 000 analyses /year
DNA-extraction
PCR amplification of
fungal “barcodes”
Sequencing
Sampling
DNA based fungal inventory since 2015
• UNFCCC & the Kyoto protocol
• Land-Use, Land-Use Change and Forestry
• Swedish NFI and SFSI data
• Pools based on the SFSI:
- Dead organic matter
- Soil carbon
Emissions (+) and removals (-) of CO2 from different C pools
LULUCF reporting
National Environmental
Quality Objectives
• Natural Acidification Only
• Target on forest soils
• State and development
Mycket hög5
Hög4
Måttlig3
Låg1-2
Surhets-
grad
Klass
Mycket hög5
Hög4
Måttlig3
Låg1-2
Surhets-
grad
Klass
Development of acidification classes
FAO/Global Soil Partnership
Data from SFSI and soil inventory on arable land
Stratified by land use classes
Simplified digital soil mapping
Update in 2019
Global Soil Organic Carbon map
Journal papers based on SFSI
https://www.slu.se/markinfo/
https://svamparisverige.se/se/start/search