MiresChrono is an interactive mapping project built using QGIS2Web, JavaScript, HTML, and CSS. The project focuses on the Sävar Rising Coastline Mire Chronosequence (SMC) in the Swedish province of Västerbotten, part of the Bothnian Bay Lowlands (BBL).
The Sävar Rising Coastline Mire Chronosequence (SMC) is a study area characterized by post-glacial isostatic rebound, currently at a rate of ~9 mm per year. This phenomenon has continuously exposed new land areas suitable for primary mire formation, creating a natural mire chronosequence spanning from the present coastline (0 years BP) to the highest coastline (~10,000 years BP). This age gradient provides a unique opportunity to study mire succession at the landscape level under similar present climatic conditions.
- Field Photos: Includes field photos from two separate transects in the SMC.
- Searchable Mires: Mires can be searched using their unique IDs.
- Legend Box: Allows users to set the background map to street, topographic, terrain, or satellite view.
- Mire Details: Clicking on a mire shape displays a landscape photo along with geographical properties. Clicking on a point displays a vegetation photo with sampling point data.
- Sampling Transects: Edge-to-edge sampling transects have been applied in 57 chronosequence mires (red points on the map), with one to four transects per mire and five sampling points each, covering within-mire variation in peat properties.
- Sampling Points: A total of 400 sampling points were visited during July and August 2018.
- Groundwater Monitoring: In 15 chronosequence mires (blue triangles on the map), relative and absolute groundwater levels have been continuously monitored for two years (2021-2023).
The SMC has been used in multiple studies, contributing to our understanding of various environmental processes and dynamics:
- Topography and Time Shape Mire Morphometry: Ehnvall et al., 2024
- Catchment Controls on Mire Properties: Ehnvall, 2023
- Boreal Mire Nutrient Regime and Vegetation Patterns: Ehnvall et al., 2023
- Mire Lateral Expansion: Ehnvall et al., 2023
- Mercury Methylation in Peatlands: Hu et al., 2020
- Peatland Succession and Plant Communities: Laine et al., 2021
- Drying Procedure for Hg Concentrations Analysis: Smeds et al., 2022
- Microbial Communities and Methylmercury Formation: Wang et al., 2023
- Methylmercury and Total Mercury Trends: Wang et al., 2020
- Net Methylmercury Formation Proxies: Wang et al., 2021
- QGIS2Web: For exporting maps from QGIS to web-friendly formats.
- JavaScript: For interactive map functionality.
- HTML: For structuring the web interface.
- CSS: For styling the web interface.