Mangrove carbon stocks in Zambezi River Delta, Mozambique

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Trettin, Carl C.
Originator: Stringer, Christina E.
Originator: Zarnoch, Stanley J.
Originator: Tang, Wenwu
Originator: Dai, Zhaohua
Publication_Date: 2017
Title:
Mangrove carbon stocks in Zambezi River Delta, Mozambique
Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Other_Citation_Details:
Updated 25 March 2019
Online_Linkage: https://doi.org/10.2737/RDS-2017-0053
Description:
Abstract:
Carbon stocks in mangroves in the Zambezi River Delta of Mozambique (East Africa) were inventoried using a stratified random sampling approach from 2012 to 2016. A total 52 plots containing 287 subplots were objectively distributed using a GIS based spatial decision support system (SDSS) to represent the characteristics of mangroves and the operating constraints within the Delta area. The inventory was designed to provide estimates of above- and below-ground carbon stocks for the entire Delta. Data include species, height and diameter at breast height for overstory, understory and dead trees, mass of woody debris, litter, and ground vegetation. Data to estimate soil carbon and nitrogen content to 2 meters depth are also included.
Purpose:
Mangroves are recognized for their numerous ecosystem services and functions that are critical to environmental health and human wellbeing in the regions where they occur and beyond. Although mangroves comprise only 0.7% of the world’s tropical forests, they have been shown to contain globally-significant carbon pools, storing up to five times more carbon than typical upland tropical forests per area. As a result, there is interest in considering mangroves in national climate adaptation and mitigation strategies, yet little research related to climate change and carbon sequestration has been completed in mangroves, especially in Africa. WWF-Mozambique’s project, Sustainable Finance for the Protected Areas System of Mozambique recommended development of a pilot project for carbon sequestration in the mangrove forests of the Zambezi Delta, Mozambique, with aims to conserve mangroves in the Zambezi River Delta through reforestation mechanisms and implementation of sustainable use and management activities with local stakeholders, financed sustainably through carbon markets. The USFS project, The Zambezi River Delta Mangrove Carbon Project: A Pilot Baseline Assessment for REDD+ Reporting and Monitoring is a foundational scientific component of the larger WWF effort, designed to quantify the mangrove carbon stocks to contribute to Mozambique’s REDD+ National Program by building in-country technical capacity and measuring the soil and vegetation carbon pools in the intact mangrove stands within the Zambezi River Delta.
Supplemental_Information:
This project was also used to assess the distribution of mangroves and change in distribution over time. The results of these analyses are available in Shapiro et al. 2015. Lidar data were also collected as part of this project for a portion of the Zambezi River Delta; that data along with remote sensing derived canopy height data are available online (Lagomasino et al. 2016).

Original metadata date was 10/03/2017. On 03/25/2019 we added a file containing the coordinates of the carbon inventory plots and dominant species found on each plot, in addition to minor metadata updates.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 201204
Ending_Date: 201609
Currentness_Reference:
Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Zambezi River Delta, Mozambique in East Africa
Bounding_Coordinates:
West_Bounding_Coordinate: 36.30681
East_Bounding_Coordinate: 36.11200
North_Bounding_Coordinate: -18.89590
South_Bounding_Coordinate: -18.74300
Bounding_Altitudes:
Altitude_Minimum:
Altitude_Maximum: 5.000
Altitude_Distance_Units: meters
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: elevation
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: inlandWaters
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: National Research & Development Taxonomy
Theme_Keyword: Climate change
Theme_Keyword: Carbon
Theme_Keyword: Ecological adaptation
Theme_Keyword: Ecology, Ecosystems, & Environment
Theme_Keyword: Ecology
Theme_Keyword: Hydrology, watersheds, sedimentation
Theme_Keyword: Soil
Theme_Keyword: Forest & Plant Health
Theme_Keyword: Climate effects
Theme_Keyword: Human effects
Theme_Keyword: Inventory, Monitoring, & Analysis
Theme_Keyword: Resource inventory
Theme_Keyword: Techniques
Theme_Keyword: Natural Resource Management & Use
Theme_Keyword: Economics
Theme_Keyword: Ecosystem services
Theme_Keyword: Forest management
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: mangrove carbon stocks
Theme_Keyword: mangrove carbon
Theme_Keyword: blue carbon
Theme_Keyword: mangrove inventory
Theme_Keyword: biomass
Theme_Keyword: soil carbon
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Zambezi
Place_Keyword: Zambezi River Delta
Place_Keyword: Mozambique
Place_Keyword: East Africa
Place_Keyword: Rufiji River Delta
Taxonomy:
Keywords/Taxon:
Taxonomic_Keyword_Thesaurus:
None
Taxonomic_Keywords: multiple species
Taxonomic_Keywords: plants
Taxonomic_System:
Classification_System/Authority:
Classification_System_Citation:
Citation_Information:
Originator: ITIS
Publication_Date: 2017
Title:
Integrated Taxonomic Information System
Geospatial_Data_Presentation_Form: Database
Other_Citation_Details:
Retrieved [September, 19, 2017]
Online_Linkage: https://www.itis.gov
Classification_System_Modifications:
1. Instead of providing the taxonomy for Bruguiera gymnorrhiza, ITIS provided the taxonomy for the accepted name: Bruguiera gymnorhiza.
2. The taxonomy for Lumnitzera racemose was not available in ITIS, but it did provide the taxonomy for Lumnitzera.
Taxonomic_Procedures:
Taxonomic_Classification:
Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Plantae
Applicable_Common_Name: plantes
Applicable_Common_Name: Planta
Applicable_Common_Name: Vegetal
Applicable_Common_Name: plants
Taxonomic_Classification:
Taxon_Rank_Name: Subkingdom
Taxon_Rank_Value: Viridiplantae
Taxonomic_Classification:
Taxon_Rank_Name: Infrakingdom
Taxon_Rank_Value: Streptophyta
Applicable_Common_Name: land plants
Taxonomic_Classification:
Taxon_Rank_Name: Superdivision
Taxon_Rank_Value: Embryophyta
Taxonomic_Classification:
Taxon_Rank_Name: Division
Taxon_Rank_Value: Tracheophyta
Applicable_Common_Name: vascular plants
Applicable_Common_Name: tracheophytes
Taxonomic_Classification:
Taxon_Rank_Name: Subdivision
Taxon_Rank_Value: Spermatophytina
Applicable_Common_Name: spermatophytes
Applicable_Common_Name: seed plants
Applicable_Common_Name: phanérogames
Taxonomic_Classification:
Taxon_Rank_Name: Class
Taxon_Rank_Value: Magnoliopsida
Taxonomic_Classification:
Taxon_Rank_Name: Superorder
Taxon_Rank_Value: Asteranae
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Lamiales
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Acanthaceae
Applicable_Common_Name: acanthacées
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Avicennia
Applicable_Common_Name: black mangrove
Applicable_Common_Name: mangrove
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Avicennia marina
Applicable_Common_Name: gray mangrove
Taxonomic_Classification:
Taxon_Rank_Name: Superorder
Taxon_Rank_Value: Rosanae
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Malvales
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Malvaceae
Applicable_Common_Name: mallows
Applicable_Common_Name: mauves
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Heritiera
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Heritiera littoralis
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Myrtales
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Lythraceae
Applicable_Common_Name: loosestrife
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Sonneratia
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Sonneratia alba
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Combretaceae
Applicable_Common_Name: combretums
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Lumnitzera
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Sapindales
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Meliaceae
Applicable_Common_Name: mahogany
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Xylocarpus
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Xylocarpus granatum
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Malpighiales
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Rhizophoraceae
Applicable_Common_Name: mangroves
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Rhizophora
Applicable_Common_Name: mangrove
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Rhizophora mucronata
Applicable_Common_Name: mangrove
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Bruguiera
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Bruguiera gymnorhiza
Applicable_Common_Name: Burmese mangrove
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Ceriops
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Ceriops tagal
Access_Constraints: None
Use_Constraints:
These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Trettin, Carl C.; Stringer, Christina E.; Zarnoch, Stanley J.; Tang, Wenwu; Dai, Zhaohua. 2017. Mangrove carbon stocks in Zambezi River Delta, Mozambique. Fort Collins, CO: Forest Service Research Data Archive. Updated 25 March 2019. https://doi.org/10.2737/RDS-2017-0053
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Carl C. Trettin
Contact_Organization: Center for Forested Wetlands Research, USDA Forest Service
Contact_Position: Team Leader
Contact_Address:
Address_Type: mailing and physical
Address: 3734 Highway 402
City: Cordesville
State_or_Province: SC
Postal_Code: 29434
Country: USA
Contact_Voice_Telephone: 843-336-5602
Contact_Electronic_Mail_Address: carl.c.trettin@usda.gov
Data_Set_Credit:
This work was made possible by U.S. Agency for International Development funding support to the USDA Forest Service, Southern Research Station under the US AID Mozambique Global Climate Change Sustainable Landscape Program, in collaboration with the Natural Resource Assessment Department of the Government of Mozambique. The work was conducted in collaboration with World Wildlife Fund – Mozambique and the Department of Biology, Eduardo Mondlane University, Maputo.
Cross_Reference:
Citation_Information:
Originator: Stringer, Christina E.
Originator: Trettin, Carl C.
Originator: Zarnoch, Stanley J.
Originator: Tang, Wenwu
Publication_Date: 2015
Title:
Carbon stocks of mangroves within the Zambezi River Delta, Mozambique
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: For. Ecol. Mgt.
Issue_Identification: 354: 139-148
Online_Linkage: https://doi.org/10.1016/j.foreco.2015.06.027
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/48759
Cross_Reference:
Citation_Information:
Originator: Tang, Wenwu
Originator: Feng, Wenpeng
Originator: Jia, Meijuan
Originator: Shi, Jiyang
Originator: Zuo, Huifang
Originator: Stringer, Christina E.
Originator: Trettin, Carl C.
Publication_Date: 2016
Title:
A cyber-enabled spatial decision support system to inventory mangroves in Mozambique: coupling scientific workflows and cloud computing
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: International Journal of Geographical Information Science
Issue_Identification: 31(5): 907-938
Online_Linkage: https://doi.org/10.1080/13658816.2016.1245419
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/54813
Cross_Reference:
Citation_Information:
Originator: Shapiro, Aurélie
Originator: Trettin, Carl C.
Originator: Küchly, Helga
Originator: Alavinapanah, Sadroddin
Originator: Bandeira, Salomão
Publication_Date: 2015
Title:
The mangroves of the Zambezi Delta: increase in extent observed via satellite from 1994 to 2013
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Remote Sens.
Issue_Identification: 7(12): 16504-16518
Online_Linkage: https://doi.org/10.3390/rs71215838
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/52670
Cross_Reference:
Citation_Information:
Originator: Lagomasino, D.
Originator: Fatoyinbo, T.
Originator: Lee, S.
Originator: Feliciano, E.
Originator: Simard, M.
Originator: Trettin, R.
Publication_Date: 2016
Title:
CMS: Mangrove Canopy Height Estimates from Remote Imagery, Zambezi Delta, Mozambique
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Oak Ridge, TN
Publisher: ORNL DAAC
Online_Linkage: https://doi.org/10.3334/ORNLDAAC/1357
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Quality assurance (QA) and quality control (QC) were used for entire inventory process. The field sampling protocols for this project are based on methods developed by CIFOR and USFS (Kauffman and Donato 2012), which was developed based on established forest sampling methodologies and first-applied in Indo-Pacific mangrove forests.

Kauffman, J. Boone; Donato, Daniel C. 2012. Protocols for the measurement, monitoring and reporting of structure, biomass and carbon stocks in mangrove forests. Working Paper 86. Bogor, Indonesia: Center for International Forestry Research (CIFOR).
Logical_Consistency_Report:
The protocol application for this project was to (a) utilize an established protocol to facilitate comparison with other projects, and (b) to assess whether the protocol needs to be adjusted for use in African mangrove forests. See \Supplements\Field_Methods_East_Africa.pdf for more details.
Completeness_Report:
Missing field data is attributable failure to record information in the field; missing laboratory data are attributable to samples that were compromised during processing. Missing data are denoted with blank cells.
Lineage:
Methodology:
Methodology_Type: Field
Methodolgy_Identifier:
Methodolgy_Keyword_Thesaurus:
None
Methodology_Keyword: mangrove inventory
Methodology_Keyword: forest inventory
Methodology_Keyword: soil survey
Methodology_Description:
An objective-based inventory was used to quantify the above and below-ground carbon stocks within the Zambezi River Delta. The forest canopy height (Lagomasino et al. 2016) was used as the basis for implementing a stratified random sampling design. Inventory plots were randomly assigned using a spatial decision support system (SDSS) and published forest inventory methods. A nested plot design was used for the measurements, whereby subplots were located systematically within the plot. The field sampling protocols were designed to facilitate the calculation of carbon stocks in vegetation components and soils. The approach was to estimate biomass using a combination of direct measurements (e.g, litter and ground vegetation biomass) and indirect measurements of diameter and height which were then used to estimate biomass, or in the case of dead wood, measurements to estimate biomass using published guidelines. The mangrove sediments were sampled in the field, to provide a basis for estimated soil carbon to a depth of 200 centimeters (cm). The field sampling was conducted by a large crew during two missions in 2012 and 2013. Plant biomass samples were processed at Eduardo Mondlane Universityto adjust field weights to an oven dry basis. Sediment samples were returned to the Forest Service laboratory, Cordesville, SC to measure bulk density and determination of carbon and nitrogen content. The forest inventory data were processed using generalized allometric equations, because at the time of the project local or regional equations were not available. Data were analyzed 2014-2016. See the citations below for more details on the sampling, analyses, and data representation.
Methodology_Citation:
Citation_Information:
Originator: Tang, Wenwu
Originator: Feng, Wenpeng
Originator: Jia, Meijuan
Originator: Shi, Jiyang
Originator: Zuo, Huifang
Originator: Stringer, Christina E.
Originator: Trettin, Carl C.
Publication_Date: 2016
Title:
A cyber-enabled spatial decision support system to inventory mangroves in Mozambique: coupling scientific workflows and cloud computing
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: International Journal of Geographical Information Science
Issue_Identification: 31(5): 907-938
Online_Linkage: https://doi.org/10.1080/13658816.2016.1245419
Online_Linkage: https://www.fs.usda.gov/treesearch/pubs/54813
Methodology_Citation:
Citation_Information:
Originator: Stringer, Christina E.
Originator: Trettin, Carl C.
Originator: Jones, Trevor G.
Originator: Ravaorinorotsihoarana, Lalao
Originator: Glass, Leah
Originator: Raherindray, Raymond
Publication_Date: Unpublished document
Title:
Mangrove Carbon Stock Inventory: Field Methods
Geospatial_Data_Presentation_Form: document
Other_Citation_Details:
Prepared in 2015 for the East Africa Mangrove Carbon Project. 33 pg. (file included in data publication download)
Methodology_Citation:
Citation_Information:
Originator: Stringer, Christina E.
Originator: Trettin, Carl C.
Originator: Zarnoch, Stankey J.
Originator: Tang, Wenwu
Publication_Date: Unpublished document
Title:
The Zambezi River Delta Mangrove Carbon Project: A pilot baseline assessment for REDD+ reporting and monitoring
Geospatial_Data_Presentation_Form: document
Other_Citation_Details:
Final project report prepared in 2014. 56 pg. (file included in data publication download)
Source_Information:
Source_Citation:
Citation_Information:
Originator: Lagomasino, D.
Originator: Fatoyinbo, T.
Originator: Lee, S.
Originator: Feliciano, E.
Originator: Simard, M.
Originator: Trettin, R.
Publication_Date: 2016
Title:
CMS: Mangrove Canopy Height Estimates from Remote Imagery, Zambezi Delta, Mozambique
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Oak Ridge, TN
Publisher: ORNL DAAC
Online_Linkage: https://doi.org/10.3334/ORNLDAAC/1357
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20111014
Ending_Date: 20140506
Source_Currentness_Reference:
Ground Condition
Source_Contribution:
This data set provides canopy height estimates for mangrove forests in the Zambezi Delta, Mozambique, Africa. The estimates were derived from three separate canopy height models (CHM) using airborne lidar, stereophotogrammetry with WorldView 1 imagery, and Interferometric-Synthetic Aperture Radar (In-SAR) techniques with TanDEM-X imagery. The data cover the period 2011-10-14 to 2014-05-06. Each CHM was resampled to 1 meter x 1 meter to match the spatial sampling of the airborne Lidar data set. All data sets were clipped to the extent of the Lidar coverage and subsequently masked to the regions of mangrove tree cover identified by Giri et al. 2014. Each CHM covered an approximate mangrove area of 6,118 hectares.
Process_Step:
Process_Description:
All data presented are raw data, with the exception of the soil bulk density. The soil bulk density was determined by measuring the volume of the soil core obtained from the specified soil depths and dividing that by the oven-dry (105° Celsius) mass of soil, yield the bulk density in units of: grams per cubic meters.
Process_Date: 2014
Back to Top
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_Overstory.csv: Comma-delimited ASCII text file containing tree (> 5 centimeters diameter breast height) inventory data collected within the measurement subplots. Variables are defined below.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Subplot: Number of the subplot that is a small mangrove area within a plot.

Height Class: Tree heights were classified into 5 classes; 1: 2 – 6.9 meters (m), 2: 7 – 9.9 m, 3: 10 – 12.9 m, 4: 13 – 17.9 m, 5: 18 – 29 m.

Species Code: Used to represent mangrove species; 1: Ceriops tagal, 2: Bruguiera gymnorrhiza, 3: Xylocarpus granatum, 4: Sonneratia alba, 5: Avicennia marina, 6: Rhizophora mucronata, 7: Heritiera littoralis, 8: Lumnitzera racemose, 88: Unknown.

Live Diameter: Tree diameter at breast height for live trees, unit: centimeters (cm).

Dead Diameter: Tree diameter at breast height for dead trees, unit: cm.

Dead Code: Used to describe the decay status of standing dead trees; 1: newly died trees, 2: small branches lost, 3: only bole left.

Height: Heights of live and/or dead trees, unit: m.
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_PlotLocations.csv: Comma-delimited ASCII text file containing the coordinates for the carbon inventory plots as well as the dominant species found on each plot. Variables are defined below.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Longitude: Longitude of plot location (decimal degrees, coordinate system=GCS_WGS_1984, Datum=D_WGS_1984).

Latitude: Latitude of plot location (decimal degrees, coordinate system=GCS_WGS_1984, Datum=D_WGS_1984).

Dominant Species: Dominant species found on plot (may be more than listed), see taxonomy section for taxonomic classification.
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_Soils.csv: Comma-delimited ASCII text file containing soil data collected within the measurement subplots. Data were collected to estimate soil carbon stocks to 2 meters below the soil surface. Variables are defined below.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Subplot: Number of the subplot that is a small mangrove area within a plot.

Interval: Represented a soil sample depth, coding from 1 to 6; 1: 5-10 centimeters (cm), 2: 20-25 cm, 3: 35-40 cm, 4: 70-75 cm, 5: 145-150 cm, 6: 190-195 cm.

Actual Sample Interval: The actual soil depth that was sampled, this provision was included in the event that core length had to constrained due to soil conditions, unit: cm.

Actual Core Length: The objective was to collect 5 cm cores, this attribute reflects the actual length of soil core, unit: cm.

Bulk Density: Soil bulk density, unit: grams per cubic centimeters (g cm-3).

%C: Carbon concentration at relevant soil layer, unit: percent.

%N: Nitrogen concentration at relevant soil layer, unit: percent.
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_Understory.csv: Comma-delimited ASCII text file containing tree (< 5 centimeters diameter breast height) inventory data collected within the measurement subplots. Variables are defined below.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Subplot: Number of the subplot that is a small mangrove area within a plot.

Species Code: Used to represent mangrove species; 1: Ceriops tagal, 2: Bruguiera gymnorrhiza, 3: Xylocarpus granatum, 4: Sonneratia alba, 5: Avicennia marina, 6: Rhizophora mucronata, 7: Heritiera littoralis, 8: Lumnitzera racemose, 88: Unknown.

Diameter: Tree diameter at breast height, unit: centimeters (cm).

Height: Heights of live and/or dead trees, unit: meters (m).
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027

Trettin, Carl C., Stringer, Christina E.; Zarnoch, Stanley J. 2015. Composition, biomass and structure of mangroves within the Zambezi River Delta. Wetlands Ecology Management 24(2): 173-186. https://doi.org/10.1007/s11273-015-9465-8
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_WoodyDebris_CWD.csv: Comma-delimited ASCII text file containing coarse woody debris (CWD) data collected within the measurement subplots. Variables are defined below for each sheet within this file.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Subplot: Number of the subplot that is a small mangrove area within a plot.

Transect: Transect of the subplot (E=east, N=north, S=south, W=West).


THE REST OF THESE DATA ARE DEADWOOD DATA TALLIED IN THE FIELD BY SIZE


--Measurements & Tallies--

Large Solid: Diameter of large solid wood > 7.6 centimeters (cm) in diameter, unit: cm.

Large Solid Squared: Diameter, unit: squared centimeters (cm2).

Large Rotten: Diameter of large rotten wood diameter > 7.6 cm, unit: cm.

Large Rotten Squared: Diameter of large rotten wood, unit: cm2.

Medium: Tally of medium size class (2.5 to 7.6 cm). 5.05

Small: Tally of small size class (0.6 to 2.4 cm). 1.5

Fine: Tally of fine size class (0.0 to 0.5 cm).


--Volumes (cubmic meters per hectare)--

Large Solid2: Calculated volume large solid class, unit: cubic meters per hectare (m3 ha-1).

Large Rotten3: Calculated volume large rotten class, unit: m3 ha-1.

Medium4: Calculated volume medium class, unit: m3 ha-1. (Quadratic Mean Diameter is 5.25 cm for this class)

Small5: Calculated volume small class, unit: m3 ha-1. (Quadratic Mean Diameter is 1.55 cm for this class)

Fine6: Calculated volume large fine class, unit: m3 ha-1. (Quadratic Mean Diameter is 0.3 cm for this class)


--Mass (kilograms per hectare)--

Large Solid7: Calculated mass large solid class, unit: kilograms per hectare (kg ha-1). (Specific gravity is 0.69 kg m-3)

Large Rotten8: Calculated mass large rotten class, unit: kg ha-1. (Specific gravity is 0.29 kg m-3)

Medium9: Calculated mass medium class, unit: kg ha-1. (Specific gravity is 0.71 kg m-3)

Small10: Calculated mass small class, unit: kg ha-1. (Specific gravity is 0.64 kg m-3)

Fine11: Calculated mass fine class, unit: kg ha-1. (Specific gravity is 0.48 kg m-3)
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027
Overview_Description:
Entity_and_Attribute_Overview:
\Data\Zambezi_WoodyDebris_LitterandLive.csv: Comma-delimited ASCII text file containing litter and live ground vegetation data collected within the measurement subplots. Variables are defined below for each sheet within this file.

Plot: Number of the mangrove plot that is a specific area of a mangrove forest selected for mangrove inventory.

Subplot: Number of the subplot that is a small mangrove area within a plot. (comp = total of subplots 1-5)

Litter (kg): Fresh weight of dead litter, unit: kilograms per square meter (kg m-2).

Live (kg): Fresh weight of vegetation < 1.3 meters (m) in height, unit: kg m-2.

Litter Corrected for % MC: Litter weight corrected for moisture content, unit: kg m-2.

Ash Content (g/g): Proportion of ash.

Litter Corrected for Ash: Litter weight corrected for ash content, unit: kg m-2.

Notes: This was used to note when there were ferns in the ground vegetation, if it is not noted it implies seedlings and other woody vegetation. (Ferns were the unusual occurrence so the plot would have higher values.).
Entity_and_Attribute_Detail_Citation:
Stringer, Christina E.; Trettin, Carl C.; Zarnoch, Stanley J.; Tang, Wenwu. 2015. Carbon stocks of mangroves within the Zambezi River Delta, Mozambique. For. Ecol. Mgt. 354: 139-148. https://doi.org/10.1016/j.foreco.2015.06.027
Overview_Description:
Entity_and_Attribute_Overview:
Supplemental files containing additional information about these data and the study are also included in the data publication download. The files are described below.

\Supplements\Field_Methods_East_Africa.pdf: Adobe Acrobat PDF/a file containing a description of the field sampling protocols ("Mangrove Carbon Stock Inventory: Field Methods") developed to support the mangrove carbon stock inventory.

\Supplements\FinalReport_MozMan_English.pdf: Adobe Acrobat PDF file containing the final project report ("The Zambezi River Delta Mangrove Carbon Project: A Pilot Baseline Assessment for REDD+ Reporting and Monitoring"). It also contains maps showing the plot locations and additional reporting of the results.

\Supplements\Pictures_Field_Mission_Report_1.pdf: Adobe Acrobat PDF file containing pictures taken during the 2013 field mission.

\Supplements\Pictures_Zambezi.pdf: Adobe Acrobat PDF file containing selected photos taken during the 2012 and 2013 field missions.
Entity_and_Attribute_Detail_Citation:
not applicable
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Research and Development
Contact_Position: Research Data Archivist
Contact_Address:
Address_Type: mailing and physical
Address: 240 West Prospect Road
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526
Country: USA
Contact_Voice_Telephone: see Contact Instructions
Contact Instructions: This contact information was current as of March 2019. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Resource_Description: RDS-2017-0053
Distribution_Liability:
Metadata documents have been reviewed for accuracy and completeness. Unless otherwise stated, all data and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. However, neither the author, the Archive, nor any part of the federal government can assure the reliability or suitability of these data for a particular purpose. The act of distribution shall not constitute any such warranty, and no responsibility is assumed for a user's application of these data or related materials.

The metadata, data, or related materials may be updated without notification. If a user believes errors are present in the metadata, data or related materials, please use the information in (1) Identification Information: Point of Contact, (2) Metadata Reference: Metadata Contact, or (3) Distribution Information: Distributor to notify the author or the Archive of the issues.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: see Format Specification
Format_Specification:
Comma-delimited ASCII text files (CSV)
File_Decompression_Technique: Files zipped with 7-Zip 18.05
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2017-0053
Digital_Form:
Digital_Transfer_Information:
Format_Name: PDF
Format_Version_Number: see Format Specification
Format_Specification:
Adobe Acrobat PDF or PDF/a files
File_Decompression_Technique: Files zipped with 7-Zip 18.05
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2017-0053
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20190325
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Carl C. Trettin
Contact_Organization: Center for Forested Wetlands Research, USDA Forest Service
Contact_Position: Team Leader
Contact_Address:
Address_Type: mailing and physical
Address: 3734 Highway 402
City: Cordesville
State_or_Province: SC
Postal_Code: 29434
Country: USA
Contact_Voice_Telephone: 843-336-5602
Contact_Electronic_Mail_Address: carl.c.trettin@usda.gov
Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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