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Mangrove guidebook for Southeast Asia










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    Book (stand-alone)
    Mangrove carbon estimator and monitoring guide 2016
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    Mangroves exist in the inter-tidal zone of sheltered tropical and subtropical coasts, and in Southeast Asia are home to 42 tree and shrub species found nowhere else (Giesen et al. 2006). These ‘true mangrove species’ and other associate species are adapted to marine and brackish conditions, and are capable of sequestering and storing large amounts of atmospheric carbon dioxide. This guide outlines a simple, low-cost methodology for measuring mangrove carbon stocks and monitoring mangroves in def ined project areas. The methodology for measuring mangrove carbon stocks was designed in collaboration with Yale University and was published in PLOS ONE journal in January 2017<.i>. This is the third in a series of four publications intended to be used in conjunction in establishing sustainable financing for mangrove protection in Asia. The titles and links of the four publications are as follows: :
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    Article
    Uncovering Dynamics of Global Mangrove Gains and Losses 2023
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    Supporting successful global mangrove conservation and policy requires accurate identification of anthropogenic and biophysical drivers of mangrove extent, yet such studies are scarce. We apply a hybrid methodology, combining existing remote sensing mangrove maps with local expert knowledge of vegetation and land use dynamics. We conducted stratified random sampling in eight subregions, and local experts visually interpreted over 20,900 plots using high-resolution imagery in Collect Earth Online. Similar to previous estimates, we found 147,771 km2 (±1.4%) of mangroves globally in 2020 and that rates of mangrove loss have decreased from 2000–2010 to 2010–2020, largely driven by South and Southeast Asia. Anthropogenic drivers of loss have shifted across subregions, with oil palm cultivation emerging in South and Southeast Asia and aquaculture in South America and Western and Central Africa, highlighting the need for ongoing monitoring and adaptable conservation efforts. Natural expansion outpaced natural retraction in both periods. This is the first global study uncovering land use drivers of mangrove decline and recovery, only made possible by collaboration with local experts. Key breakthroughs include successfully discerning spectrally similar anthropogenic from biophysical drivers, such as aquaculture from natural retraction, and creating data collection approaches that streamline visual interpretation efforts.
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    Book (stand-alone)
    The world's mangroves 1980-2005 2007
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    Mangroves, commonly found along sheltered coastlines in the tropics and subropics, fulfil important socio-economic and envioronmental functions: providing wood and non-wood forest products, protecting shores against wind, waves and water currents; conserving biological diversity; protecting coral reefs, sea-grass beds and shipping lanes against siltation; and providing habitat, spawning grounds and nutrients for a variety of fish and shellfish, including many commercial species. High population pressure in coastal areas has, however, led to the conversion of many mangrove areas to other uses. The world's mangroves 1980-2005, prepared in the framework of the Global Forest Resources Assessment 2005, provides comprehensive information on the current and past extent of mangroves in all countries and territories in which they exist. This information, as well as the gaps in information that come to light in the report, will assist mangrove managers and policy- and decision-makers worldwide i n ensuring the conservation, management and sustainable use of the world's remaining mangrove ecosystems.

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