Individual study: Sphagnum regeneration on bare peat surfaces: field and greenhouse experiments
Campeau S. & Rochefort L. (1996) Sphagnum regeneration on bare peat surfaces: field and greenhouse experiments. Journal of Applied Ecology, 33, 599-608
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Add mixed vegetation to peatland surface
A replicated, randomized, paired, controlled, before-and-after study in 1993 in a historically mined raised bog in Quebec, Canada (Campeau & Rochefort 1996; part of 7) found that plots sown with vegetation from the surface of a donor bog contained more Sphagnum moss shoots than plots sown with deeper material and unsown plots. Before sowing, plots were bare peat. After one growing season, plots sown with Sphagnum-dominated vegetation from a bog surface contained more live Sphagnum shoots (190–890/m2) than plots sown with material from 10–30 cm depth (10–100/m2) and plots that had not been sown (30–120/m2). Similar patterns were observed in a greenhouse experiment (see original paper). In June 1993, twelve blocks of four 1 m2 plots were established on bare rewetted peat. Within each block, three random plots were sown with vegetation or material from a nearby natural peatland: from the surface (top 10 cm), from 10–20 cm depth or from 20–30 cm depth. The vegetation was dominated by one of three Sphagnum moss species. The fourth plot was not sown. All plots were shaded with a plastic cloth. In October 1993, Sphagnum shoots were counted in four 25 x 25 cm quadrats/plot.
(Summarised by Nigel Taylor)
Add mosses to peatland surface
A replicated, randomized, paired, controlled, before-and-after study in 1993 in a historically mined raised bog in Quebec, Canada (Campeau & Rochefort 1996; part of 3) reported that plots sown with Sphagnum moss fragments developed some Sphagnum cover. Before sowing, plots were bare peat. After one growing season, sown plots had 1–7% Sphagnum cover. There were also more Sphagnum shoots after one growing season (180–860/m2) than the number introduced (150–450/m2). Additionally, cover was significantly higher in plots sown at higher densities (low initial density: 1–2%; medium: 2–4%; high: 3–7% final cover) and differed between species (see original paper). The size of introduced fragments had no effect on cover (data not reported). In June 1993, twenty 10 m2 plots were established on bare rewetted peat. Sixteen plots were sown with a single Sphagnum species (four plots x four species) and four plots sown with a mixture of all four species. Within each plot, three fragment densities (low: 150; medium: 300; high: 450/m2) and two fragment sizes (1 or 2 cm) were applied to six subplots. Additional subplots were left unsown as controls, but data were not reported. All plots were shaded with a plastic cloth. In October 1993, Sphagnum cover was visually estimated and live shoots counted in four 25 x 25 cm quadrats/subplot.
(Summarised by Nigel Taylor)