High mangrove density enhances surface accretion, surface elevation change, and tree survival in coastal areas susceptible to sea-level rise

  title={High mangrove density enhances surface accretion, surface elevation change, and tree survival in coastal areas susceptible to sea-level rise},
  author={M. P. Kumara and Loku Pulukkuttige Jayatissa and Ken W. Krauss and Donald H. Phillips and Mark Huxham},
Survival, growth, aboveground biomass accumulation, sediment surface elevation dynamics and nitrogen accumulation in sediments were studied in experimental treatments planted with four different densities (6.96, 3.26, 1.93 and 0.95 seedlings m−2) of the mangrove Rhizophora mucronata in Puttalam Lagoon, Sri Lanka. Measurements were taken over a period of 1,171 days and were compared with those from unplanted controls. Trees at the lowest density showed significantly reduced survival, whilst… 

The impacts of tree density on the physical and biological characteristics of planted Mangrove stands in Sri Lanka.

Survival, growth, aboveground biomass production, belowground biomass production, sediment accretion, soil surface elevation dynamics, sediment carbon and C/N ratio, sediment N and P, sediment 13C

Impacts of Mangrove Density on Surface Sediment Accretion, Belowground Biomass and Biogeochemistry in Puttalam Lagoon, Sri Lanka

Understanding the effects of seedling density on sediment accretion, biogeochemistry and belowground biomass in mangrove systems can help explain ecological functioning and inform appropriate

Roles of aboveground roots facilitating sedimentation and elevation change in a mangrove forest behind bamboo seawalls

We studied sedimentation rates and elevation changes in a naturally rehabilitated-mangrove forest dominated by Avicennia spp. and compared the results to a seedling plantation of Rhizophora mucronata

Sedimentation as a Support Ecosystem Service in Different Ecological Types of Mangroves

Mangrove vegetation is strongly dependent on the climate, the physicochemical variables of the sediment, and the hydrological dynamics. These drivers regulate the distribution of different mangrove

Effects of experimental sedimentation on the phenological dynamics and leaf traits of replanted mangroves at Gazi bay, Kenya

Under incidences of large sedimentation events, mangrove trees may capitalize on “advantages” associated with terrestrial sediment brought into the biotope, thus maintaining the pattern of phenological events.

Measuring the role of seagrasses in regulating sediment surface elevation

Combined data from the current work and the literature show an average difference of 31 mm per year in elevation rates between vegetated and unvegetated areas, which emphasizes the important contribution of seagrass in facilitating sediment surface elevation and reducing erosion.

Spatio-temporal Dynamics of Soil Composition and Accumulation Rates in Mangrove Wetlands

Mangrove wetlands are globally important environments of biogeochemical cycling and are the object of intensive research related to the sequestration and exchange of carbon with oceans, continents,

How mangrove forests adjust to rising sea level.

This review provides a general overview of research on mangrove elevation dynamics, emphasizing the role of the vegetation in maintaining soil surface elevations and the important, and often under-appreciated, role that plants play in shaping the trajectory of an ecosystem undergoing change.



Caribbean mangroves adjust to rising sea level through biotic controls on change in soil elevation

Aim The long-term stability of coastal ecosystems such as mangroves and salt marshes depends upon the maintenance of soil elevations within the intertidal habitat as sea level changes. We examined

Vegetation succession and herbivory in a salt marsh: changes induced by sea level rise and silt deposition along an elevational gradient

It is proposed that declining forage quality (due to changing vegetation composition during succession) is a better explanation for this pattern than the classic explanation of predator control of herbivores at high levels of primary productivity.

Surface Elevation Change and Susceptibility of Different Mangrove Zones to Sea-Level Rise on Pacific High Islands of Micronesia

Mangroves on Pacific high islands offer a number of important ecosystem services to both natural ecological communities and human societies. High islands are subjected to constant erosion over

Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch

Model simulations using the Relative Elevation Model indicate that peat collapse in the high impact basin mangrove forest would be 37 mm year−1 for the 2 years immediately after the storm, as root material decomposed, and in the absence of renewed root growth, the model predicts thatPeat collapse will continue for at least 8 more years at a rate similar to that measured.

Influence of species richness and environmental context on early survival of replanted mangroves at Gazi bay, Kenya

There was no evidence that early survival of transplanted saplings is influenced by the species mix in which they are grown, or by their position in the plot, and the tolerance of individual species to salinity was the key to their survival at the high tidal site.

Surface Elevation Dynamics in a Regenerating Mangrove Forest at Homebush Bay, Australia

Following the dieback of an interior portion of a mangrove forest at Homebush Bay, Australia, surface elevation tables and feldspar marker horizons were installed in the impacted, intermediate and

Long-Term Growth and Succession in Restored and Natural Mangrove Forests in Southwestern Florida

Although the restored stand had converged with the natural forest by 2000 in terms of some factors such as species richness, vegetation cover, litterfall, and light penetration, trees were still much smaller and stem densities much higher, and full development of mature structure and ecological function will likely require decades more development.

Hurricane Wilma’s impact on overall soil elevation and zones within the soil profile in a mangrove forest

Soil elevation affects tidal inundation period, inundation frequency, and overall hydroperiod, all of which are important ecological factors affecting species recruitment, composition, and survival