Study

长江口滨海湿地原生海三棱藨草种群恢复的实验研究

  • Published source details Hu Z., Ma Q., Cao H., Zhang Z., Tang C., Zhang L. & Ge Z. (2016) A trial study on revegetation of the native Scirpus mariqueter population in the coastal wetland of the Yangtze Estuary. Ecological Science, 35, 1-7

Actions

This study is summarised as evidence for the following.

Action Category

Introduce fragments of non-woody plants: brackish/saline wetlands

Action Link
Marsh and Swamp Conservation

Introduce seeds of non-woody plants: brackish/saline wetlands

Action Link
Marsh and Swamp Conservation
  1. Introduce fragments of non-woody plants: brackish/saline wetlands

    A replicated study in 2014 on a recently deposited tidal flat in eastern China (Hu et al. 2016) reported that planted bulrush Scirpus mariqueter corms (swollen underground stems, similar to bulbs) successfully emerged to produce above-ground parts. Over the first growing season after planting, the emergence rate of planted corms was at least 25–42% (depending on planting density, and based on the maximum number of seedlings observed at any one time). At the end of the growing season, planted areas contained 73–216 bulrush shoots/m2. The final shoot density was significantly greater where more corms had been planted. Methods: In March–April 2014, field-collected bulrush corms were planted into a recent accumulation of intertidal sediment in the Yangtze estuary. Three 400-m2 plots were each planted with a different density of corms: 15, 30 or 60 corms/m2. Corms were planted 5 cm deep. Bulrush seedlings and shoots were counted twice each month until October, in ten 4-m2 quadrats/plot.

    (Summarised by: Nigel Taylor)

  2. Introduce seeds of non-woody plants: brackish/saline wetlands

    A replicated study in 2014 on a recently deposited tidal flat in eastern China (Hu et al. 2016) reported that sown bulrush Scirpus mariqueter seeds successfully germinated. After one growing season, 0.6–1.1% of sown bulrush seeds had germinated and emerged as seedlings. There were 0.06–0.50 bulrush shoots/m2. Neither the germination rate nor shoot density significantly differed between different sowing densities. Methods: In March–April 2015, field-collected bulrush seeds were sown into a recent accumulation of intertidal sediment in the Yangtze estuary. Three 200-m2 plots were each sown with a different density of seeds: 1,000, 2,000 or 4,000 seeds/m2. Seeds were sown 5 cm deep, but the study noted that substantial sediment deposition over the rest of the growing season (>15 cm depth). Bulrush seedlings and shoots were counted twice each month until October, in ten 4-m2 quadrats/plot.

    (Summarised by: Nigel Taylor)

Output references

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