Carbon sequestration in wetland dominated coastal systems—a global sink of rapidly diminishing magnitude

Hopkinson, Charles S.; Cai, Wei‐Jun; Hu, Xinping

doi:10.1016/j.cosust.2012.03.005

Cited by 225 publications

(122 citation statements)

References 42 publications

Supporting

Mentioning

117

Contrasting

Unclassified

Order By: Relevance

“…Carbon accumulation in marsh soils is an important ecosystem process that contributes to the burial of carbon, also known as Bblue carbon^ (Chmura et al 2003;Mitra et al 2005;Hopkinson et al 2012). These carbon accumulation dynamics in marsh soils will likely be altered in response to future environmental conditions driven by climate change and coastal restoration activities.…”

Section: Introductionmentioning

confidence: 99%

Relationships Between Salinity and Short-Term Soil Carbon Accumulation Rates from Marsh Types Across a Landscape in the Mississippi River Delta

et al. 2017

View full text Add to dashboard Cite

Salinity alterations will likely change the plant and environmental characteristics in coastal marshes thereby influencing soil carbon accumulation rates. Coastal Louisiana marshes have been historically classified as fresh, intermediate, brackish, or saline based on resident plant community and position along a salinity gradient. Short-term total carbon accumulation rates were assessed by collecting 10-cm deep soil cores at 24 sites located in marshes spanning the salinity gradient. Bulk density, total carbon content, and the short-term accretion rates obtained with feldspar horizon markers were measured to determine total carbon accumulation rates. Despite some significant differences in soil properties among marsh types, the mean total carbon accumulation rates among marsh types were not significantly different (mean ± std. err. of 190 ± 27 g TC m −2 year −1 ). However, regression analysis indicated that mean annual surface salinity had a significant negative relationship with total carbon accumulation rates. Based on both analyses, the coastal Louisiana total marsh area (1,433,700 ha) accumulates about 2.7 to 3.3 Tg C year −1 .Changing salinities due to increasing relative sea level or resulting from restoration activities may alter carbon accumulation rates in the short term and significantly influence the global carbon cycle.

show abstract

Section: Introductionmentioning

confidence: 99%

Relationships Between Salinity and Short-Term Soil Carbon Accumulation Rates from Marsh Types Across a Landscape in the Mississippi River Delta

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In this regard, one of the most important sinks in the global carbon pool, i.e. the organic carbon buried in the mangroves and inter-tidal marshes (commonly referred to as 'blue carbon') has considerably attracted the attention of the present day environmental scientists owing to their promising carbon sequestration potential (McLeod et al 2011;Hopkinson et al 2012). This 'blue carbon' can be released to the atmosphere when these coastal ecosystems are converted or degraded.…”

Section: Introductionmentioning

confidence: 99%

Blue Carbon Stock of the Bangladesh Sundarban Mangroves: What could Be the Scenario after a Century?

et al. 2016

View full text Add to dashboard Cite

The total blue carbon stock of the Bangladesh Sundarban mangroves was evaluated and the probable future status after a century was predicted based on the recent trend of changes in the last 30 years and implementing a hybrid model of Markov Chain and Cellular automata. At present 36.24 Tg C and 54.95 Tg C are stored in the above-ground and below-ground compartments respectively resulting in total blue carbon stock of 91.19 Tg C. According to the prediction 15.88 Tg C would be lost from this region by the year 2115. The low saline species composition classes dominated mainly by Heritiera spp. accounts for the major portion of the carbon sock at present (45.60 Tg C), while the highly saline regions stores only 14.90 Tg C. The prediction shows that after a hundred years almost 22.42 Tg C would be lost from the low saline regions accompanied by an increase of 8.20 Tg C in the high saline regions dominated mainly by Excoecaria sp. and Avicennia spp. The net carbon loss would be due to both mangrove area loss (~510 km 2 ) and change in species composition leading to 58.28 Tg of potential CO 2 emission within the year 2115.

show abstract

“…As the ecological deficit results from excessive human resource demands [57], demand must be reduced to achieve sustainable ecological development. The formulas for ED and ER are shown as Equations (5) and (6). ER = ECC − EF (5) ED = EF − ECC (6) in which ER is the ecological remainder, ED is the ecological deficit, ECC is the ecological carrying capacity, and EF is the ecological footprint.…”

Section: (A) Ed or Ermentioning

confidence: 99%

“…Factors such as climate change, rural poverty, and increased human population size have resulted in a wetlands loss of~30%-50% in the last decade [1][2][3]. As well as providing ecosystem services such as flood control, coastline protection, nutrient recycling, carbon sequestration, and ecotourism, wetlands support many specialized plants and animal species [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Establishment and Application of Wetlands Ecosystem Services and Sustainable Ecological Evaluation Indicators

Chen

2017

Water

View full text Add to dashboard Cite

Gaomei wetlands are national Taiwanese coastal wetlands. Over the past few years, they have grown into an important water bird habitat and popular bird-watching location. However, the rapid growth in tourism has begun to affect the environmental quality in the Gaomei wetlands. This study combined ecosystem services (ES) and ecological footprint (EF) assessments to evaluate the sustainability status according to the features of each ecosystem service for the different Gaomei wetlands land uses. The results found that (a) the total Gaomei wetlands ecosystem service value increased from 59.24 million TWD in 2008 to 98.10 million TWD in 2015, and the ecosystem service function was continuously improving; (b) the EF increased by 56.12% over 8 years; and (c) there was a negative growth rate of 106.54% in the ecological deficit (ED) in the sustainable ecological evaluation indicators (SEEI). The ecological footprint index (EFI) in 2015 was at Level 4 at 1.02, and the environmental sustainability index (ESI) was at Level 3 at 0.49. Results show that Gaomei wetlands have a low sustainability; therefore, the local, regional, and national governments need to implement regulations to strictly control the Gaomei wetlands land use. This study demonstrated that ES and EF theory application can give an objective guidance to decision-makers to ensure that wetlands eco-security can be maintained at safe levels.

show abstract

Carbon sequestration in wetland dominated coastal systems—a global sink of rapidly diminishing magnitude

Cited by 225 publications

References 42 publications

Relationships Between Salinity and Short-Term Soil Carbon Accumulation Rates from Marsh Types Across a Landscape in the Mississippi River Delta

Relationships Between Salinity and Short-Term Soil Carbon Accumulation Rates from Marsh Types Across a Landscape in the Mississippi River Delta

Blue Carbon Stock of the Bangladesh Sundarban Mangroves: What could Be the Scenario after a Century?

Establishment and Application of Wetlands Ecosystem Services and Sustainable Ecological Evaluation Indicators

Contact Info

Product

Resources

About