Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Status and distribution of mangrove forests of the world using earth observation satellite data
Global Ecology and Biogeography, Volume 20, No. 1, Year 2011
Notification
URL copied to clipboard!
Description
Aim Our scientific understanding of the extent and distribution of mangrove forests of the world is inadequate. The available global mangrove databases, compiled using disparate geospatial data sources and national statistics, need to be improved. Here, we mapped the status and distributions of global mangroves using recently available Global Land Survey (GLS) data and the Landsat archive.Methods We interpreted approximately 1000 Landsat scenes using hybrid supervised and unsupervised digital image classification techniques. Each image was normalized for variation in solar angle and earth-sun distance by converting the digital number values to the top-of-the-atmosphere reflectance. Ground truth data and existing maps and databases were used to select training samples and also for iterative labelling. Results were validated using existing GIS data and the published literature to map 'true mangroves'.Results The total area of mangroves in the year 2000 was 137,760 km2 in 118 countries and territories in the tropical and subtropical regions of the world. Approximately 75% of world's mangroves are found in just 15 countries, and only 6.9% are protected under the existing protected areas network (IUCN I-IV). Our study confirms earlier findings that the biogeographic distribution of mangroves is generally confined to the tropical and subtropical regions and the largest percentage of mangroves is found between 5° N and 5° S latitude.Main conclusions We report that the remaining area of mangrove forest in the world is less than previously thought. Our estimate is 12.3% smaller than the most recent estimate by the Food and Agriculture Organization (FAO) of the United Nations. We present the most comprehensive, globally consistent and highest resolution (30 m) global mangrove database ever created. We developed and used better mapping techniques and data sources and mapped mangroves with better spatial and thematic details than previous studies. © 2010 Blackwell Publishing Ltd.
Authors & Co-Authors
Giri, Chandra P.
United States, Sioux Falls
Usgs Earth Resources Observation and Science Center
Ochieng, E.
Kenya, Nairobi
United Nations Environment Programme
Tieszen, Larry L.
United States, Reston
United States Geological Survey
Zhu, Z.
United States, Reston
United States Geological Survey
Singh, Ashbindu
United States, Washington
United Nations Environment Programme
Loveland, Thomas R.
United States, Reston
United States Geological Survey
Masek, Jeffrey
United States, Greenbelt
Nasa Goddard Space Flight Center
Duke, Norman C.
Australia, Brisbane
The University of Queensland
Statistics
Citations: 2,423
Authors: 8
Affiliations: 6
Identifiers
Doi:
10.1111/j.1466-8238.2010.00584.x
ISSN:
1466822X
e-ISSN:
14668238
Research Areas
Food Security
Study Design
Cross Sectional Study
Study Approach
Quantitative