scholarly journals Organic carbon inventories in natural and restored Ecuadorian mangrove forests

2013 ◽  
Author(s):  
Amanda G DelVecchia ◽  
John F Bruno ◽  
Larry K Benninger ◽  
Marc Alperin ◽  
Ovik Banerjee ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Carbon Storage ◽  
Organic Matter Content ◽  
Carbon Stocks ◽  
Organic Carbon Content ◽  
Mangrove Forests ◽  
Storage Potential ◽  
Sediment Carbon

Because mangroves can capture and store organic carbon, their protection and restoration is an obvious component of climate change mitigation. However, there are few empirical measurements of long-term carbon storage in mangroves or of how storage varies across environmental gradients. The context dependency of this process combined with geographically limited field sampling has made it difficult to generalize regional and global rates of mangrove carbon sequestration. This has in turn hampered the inclusion of sequestration by mangroves in carbon cycle models and in carbon offset markets. The purpose of this study was to estimate the relative carbon capture and storage potential in natural and restored mangrove forests. We measured depth profiles of soil organic carbon content in 72 cores collected from six sites (three natural, two restored, and one afforested) surrounding Muisne, Ecuador. Samples up to 1 m deep were analyzed for organic matter content using loss-on-ignition and values were converted to organic carbon content using an accepted ratio of 1.72 (g/g). Results suggest that average soil carbon storage is 0.055 ± 0.002 g∙cm-3 (11.3 ± 0.8% carbon content by dry mass, mean ± 1 SE) up to 1 m deep in natural sites, and 0.058 ± 0.002 g∙cm-3 (8.0 ± 0.3%) in restored sites. These estimates are concordant with published global averages. Evidence of equivalent carbon stocks in restored and afforested mangrove patches emphasizes the carbon sink potential for reestablished mangrove systems. We found no relationship between sediment carbon storage and aboveground biomass, forest structure, or within-patch location. Our results demonstrate the long-term carbon storage potential of natural mangroves, high effectiveness of mangrove restoration and afforestation, a lack of predictability in carbon storage strictly based on aboveground parameters, and the need to establish standardized protocol for quantifying mangrove sediment carbon stocks.

scholarly journals Organic carbon inventories in natural and restored Ecuadorian mangrove forests

2013 ◽  
Author(s):  
Amanda G DelVecchia ◽  
John F Bruno ◽  
Larry K Benninger ◽  
Marc Alperin ◽  
Ovik Banerjee ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Carbon Storage ◽  
Organic Matter Content ◽  
Carbon Stocks ◽  
Organic Carbon Content ◽  
Mangrove Forests ◽  
Storage Potential ◽  
Sediment Carbon

Because mangroves can capture and store organic carbon, their protection and restoration is an obvious component of climate change mitigation. However, there are few empirical measurements of long-term carbon storage in mangroves or of how storage varies across environmental gradients. The context dependency of this process combined with geographically limited field sampling has made it difficult to generalize regional and global rates of mangrove carbon sequestration. This has in turn hampered the inclusion of sequestration by mangroves in carbon cycle models and in carbon offset markets. The purpose of this study was to estimate the relative carbon capture and storage potential in natural and restored mangrove forests. We measured depth profiles of soil organic carbon content in 72 cores collected from six sites (three natural, two restored, and one afforested) surrounding Muisne, Ecuador. Samples up to 1 m deep were analyzed for organic matter content using loss-on-ignition and values were converted to organic carbon content using an accepted ratio of 1.72 (g/g). Results suggest that average soil carbon storage is 0.055 ± 0.002 g∙cm-3 (11.3 ± 0.8% carbon content by dry mass, mean ± 1 SE) up to 1 m deep in natural sites, and 0.058 ± 0.002 g∙cm-3 (8.0 ± 0.3%) in restored sites. These estimates are concordant with published global averages. Evidence of equivalent carbon stocks in restored and afforested mangrove patches emphasizes the carbon sink potential for reestablished mangrove systems. We found no relationship between sediment carbon storage and aboveground biomass, forest structure, or within-patch location. Our results demonstrate the long-term carbon storage potential of natural mangroves, high effectiveness of mangrove restoration and afforestation, a lack of predictability in carbon storage strictly based on aboveground parameters, and the need to establish standardized protocol for quantifying mangrove sediment carbon stocks.

Organic carbon storage potential in deep agricultural soil layers: Evidence from long-term experiments in northeast Italy

2020 ◽  
Vol 300 ◽  
pp. 106967 ◽  
Author(s):  
Nicola Dal Ferro ◽  
Ilaria Piccoli ◽  
Antonio Berti ◽  
Riccardo Polese ◽  
Francesco Morari
Keyword(s):  
Organic Carbon ◽  
Carbon Storage ◽  
Agricultural Soil ◽  
Soil Layers ◽  
Long Term Experiments ◽  
Storage Potential ◽  
Organic Carbon Storage

scholarly journals SEDIMENT CARBON STOCK OF WEST KALIMANTAN MANGROVE FORESTS

2019 ◽  
Vol 44 (1) ◽  
pp. 27-35
Author(s):  
Tia Nuraya ◽  
Alan Frendy Koropitan ◽  
A'an Johan Wahyudi
Keyword(s):  
Organic Carbon ◽  
Carbon Stock ◽  
High Tide ◽  
Organic Carbon Content ◽  
Mangrove Forests ◽  
Dominant Type ◽  
West Kalimantan ◽  
Riverine Input ◽  
Sediment Carbon ◽  
Organic Carbon Stock

We investigate variation in sediment carbon stock at Mempawah and Bakau Besar in West Kalimantan by analyzing organic carbon content from sediment samples taken within 20 cm depth. Our results show that organic carbon stock of sediments in Bakau Besar is generally higher than in Mempawah that may be due to riverine input of organic carbon into the mangrove forests. The riverine input of organic carbon is influenced tides, in which we find that organic carbon loads are higher during high tide compared to low tide. In particular, we find high organic carbon contents at a station in Mempawah (Station 3; 6.46 ± 0.23 tons C/ha) and another station in Bakau Besar (Station 2; 14.93 ± 1.43 tons C/ha). These two stations have mangrove density of 13,519 individuals/ha and 9,928 individuals/ha, respectively. We conclude that high organic carbon is influenced by riverine input as well as a high density of mangrove and the dominant type of mangrove vegetation at the sites.

scholarly journals The color of refractory organic carbon

2018 ◽  
Vol 189 (2) ◽  
pp. 9 ◽  
Author(s):  
Maxime Debret ◽  
Yoann Copard ◽  
Antonin Van Exem ◽  
Geneviève Bessereau ◽  
Frank Haeseler ◽  
...  
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Carbon Content ◽  
Anthropogenic Activities ◽  
Organic Matter Content ◽  
Matter Content ◽  
Mineral Matter ◽  
Organic Carbon Content ◽  
Fast Method ◽  
Wide Range

Organic matter studies find an echo within different topics such as biogeochemical cycles, processes occurring in continental surfaces, anthropogenic activities, climate science, earth and planetary sciences, etc. Today’s challenges include finding and developing the most appropriate method(s) supporting the differentiation and characterisation of various types of recalcitrant organic matter in modern environments. In this study, we focus on combustion residues and coals as these two types of organic matter contain a significant amount of so-called recalcitrant organic carbon (black carbon and fossil organic carbon). Both these materials are ubiquitous, broadly stem from the same living organisms and have similar polyaromatic structures. In this respect, we tested a spectrophotometry method, classically used for sedimentology, as a very fast method for preliminary investigations. Analyses were performed with a wide range of standards and referenced samples. The results discriminate three different spectral signatures related to the degree of transformation of organic matter related to the degree of aromaticity (i.e. carbonisation). Using calibration curves, total organic carbon content can be estimated in experimental mixes with mineral matter and in a real context using subsurface sample (Gironville 101 borehole, Paris Basin, France). This method has particularly high sensitivity to very low organic matter content and is shown to be promising for a rapid evaluation of the organic carbon content.

Effect of long-term grazing on soil organic carbon content in semiarid steppes in Inner Mongolia

2005 ◽  
Vol 20 (5) ◽  
pp. 519-527 ◽  
Author(s):  
Xiaoyong Cui ◽  
Yanfen Wang ◽  
Haishan Niu ◽  
Jing Wu ◽  
Shiping Wang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Inner Mongolia ◽  
Organic Carbon Content ◽  
Soil Organic Carbon Content ◽  
Semiarid Steppes

Long-term no tillage increased soil organic carbon content of rain-fed cereal systems in a Mediterranean area

2012 ◽  
Vol 40 ◽  
pp. 18-27 ◽  
Author(s):  
Giacomo De Sanctis ◽  
Pier Paolo Roggero ◽  
Giovanna Seddaiu ◽  
Roberto Orsini ◽  
Cheryl H. Porter ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Mediterranean Area ◽  
Organic Carbon Content ◽  
No Tillage ◽  
Soil Organic Carbon Content

scholarly journals Effect of Land Use on Organic Carbon Storage Potential of Soils with Contrasting Native Organic Matter Content

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Sabina Yeasmin ◽  
Eshara Jahan ◽  
Md. Ashik Molla ◽  
A. K. M. Mominul Islam ◽  
Md. Parvez Anwar ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Organic Carbon ◽  
Carbon Storage ◽  
Organic Matter Content ◽  
Fallow Land ◽  
Land Uses ◽  
Storage Potential ◽  
The Impact ◽  
Native Organic Matter

This study aimed to determine the impact of land use on organic carbon (OC) pools of soils with contrasting native organic matter (OM) content. Surface (0–15 cm) soils of four land uses (cropland, orchard, grassland, and fallow) were collected from four agroecological zones (AEZs) of Bangladesh with different OM content (AEZ-7: very low, −3: low, −9: medium, and −5: high). Bulk soils were physically fractionated into particulate and mineral associated OM (POM and MOM: >53 and <53 µm, respectively). Both bulk and fractionated soils were analyzed for OC and nitrogen (N). Among the land uses, undisturbed soils (grassland and fallow land) had significantly higher total OC (0.44–1.79%) than disturbed soils (orchard and cropland) (0.39–1.67%) in all AEZs. The distribution of OC and N in POM and MOM fractions was significantly different among land uses and also varied with native OM content. In all AEZs, cropland soils showed the lowest POM-C content (0.40–1.41%), whereas the orchard soils showed the highest values (0.71–1.91%). The MOM-C was highest (0.81–1.91%) in fallow land and lowest (0.53–1.51%) in orchard, and cropland had a moderate amount (0.70–1.61%). In croplands, distribution of a considerable amount of OC in the MOM pool was noticeable. These findings reveal that total OC in soils can be decreased with cultivation but does not inevitably indicate the loss of OC storage in the stable pool. Carbon storage potential of soils with both high- and low-native OM contents can be increased via proper land use and managements.

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