Current evidence syntheses
How is the marine environment affected by climate change and increased carbon dioxide levels? A summary of the scientific literature.
A summary of published research on climate change and ocean acidification, with a focus on the Baltic Sea. The report was published in May 2019 and is only published in Swedish.
What are the hydrological effects of wetland restoration and creation? A systematic review
Wetlands are created for many reasons, but in recent years their hydrological effects have come more into focus. However, both researchers and authorities have stated that there is limited knowledge on the evidence for some of the expected effects. Formas will therefore conduct an evidence synthesis on this topic. The report is expected to be published in the end of 2021.
How do selected crop rotations affect soil organic carbon in arable soils? A systematic review
Soils contain the largest terrestrial carbon pool globally and can provide a vital ecosystem service by acting as a carbon sink. However, soils may be sensitive to changes in land use and agricultural management practices. Conducting a systematic review, Formas will critically appraise and synthesize all available research concerning selected crop rotations and their effect on soil organic carbon. The report will be published in autumn 2020.
How effectively do natural soils retain phosphorus from on-site wastewater treatment systems? A systematic review.
Small wastewater treatment systems that release phosphorus into the soil are considered one of the causes of eutrophication in surface waters. However, the phosphorus discharge can be purified naturally by so-called soil retention. This means that the nutrients are kept in soil and plants. It is uncertain how effective soil retention is and what factors affect the retention process. Both authorities, the industry and private individuals in Sweden request a rigorous review of the research published on the subject. The final report will be published in Swedish in the end of 2021.
What effect does mosquito control with Bti have on ecosystems? A systematic review.
The bacterium Bacillus thuringiensis serovar israelensis (Bti) is used in many countries as a biologic larvicide to control mosquitoes and black flies. Bti is very effective against the target insects, but when these become fewer, other effects on the ecosystem can occur. Formas will critically appraise and analyse all available research, on such indirect effects on the environment, in a systematic review. The final report will be published in Swedish at the end of 2020.
How does wastewater affect aquatic organisms? A systematic map.
Wastewater from municipal wastewater treatment plants often contain residues of various kinds of pollutants. How are aquatic organisms affected by wastewater purified by conventional techniques? Does it make any difference if the wastewater is purified with more sophisticated techniques than is commonly used in Sweden today? Formas systematic map will assess how many studies there are that can answer these questions. The final report will be published in Swedish at the end of 2020.