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… Expand
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 13CExpand
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 appropriateExpand
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 mucronataExpand
Exceptionally high mangrove root production rates in the Kelantan Delta, Malaysia; An experimental and comparative study
Abstract Mangroves often allocate a relatively large proportion of their total biomass production to their roots, and the belowground biomass of these forests contributes towards globally significantExpand
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. Expand
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. Expand
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,Expand
Differential in surface elevation change across mangrove forests in the intertidal zone
Abstract A better understanding of surface elevation changes in different mangrove forests would improve our predictions of sea-level rise impacts, not only upon mangrove species distributions in theExpand
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. Expand
Regeneration and self-thinning processes in a restored Rhizophora apiculata plantation in southern Thailand
The results suggest that the density of planted R. apiculata seedlings could be lowered in order to reduce the costs of mangrove restoration, as a large number of seedlings is lost due to density-dependent mortality. Expand


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 examinedExpand
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. Expand
Differential rates of vertical accretion and elevation change among aerial root types in Micronesian mangrove forests
Abstract Root systems in mangrove swamps have captured the attention of scientists for decades. Among the postulated roles of root structures include a contribution to the geomorphological stabilityExpand
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 overExpand
Mangrove growth in New Zealand estuaries: the role of nutrient enrichment at sites with contrasting rates of sedimentation
Mangrove forest coverage is increasing in the estuaries of the North Island of New Zealand, causing changes in estuarine ecosystem structure and function. Sedimentation and associated nutrientExpand
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. Expand
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. Expand
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 andExpand
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. Expand
Rapid sediment accumulation and microbial mineralization in forests of the mangrove Kandelia candel in the Jiulongjiang Estuary, China
Abstract Rates of sediment accumulation and microbial mineralization were examined at three Kandelia candel forests spanning the intertidal zone along the south coastline of the heavily urbanizedExpand