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Identifying Mangrove Deforestation Hotspots in South Asia, Southeast Asia and Asia-Pacific

机译:确定南亚,东南亚和亚太地区的红树林砍伐热点

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Mangroves inhabit highly productive inter-tidal ecosystems in 120 countries in the tropics and subtropics providing critical goods and services to coastal communities and contributing to global climate change mitigation owing to substantial carbon stocks. Despite their importance, global mangrove distribution continues to decline primarily due to anthropogenic drivers which vary by region/country. South Asia, Southeast Asia and Asia-Pacific contain approximately 46% of the world’s mangrove ecosystems, including the most biodiverse mangrove forests. This region also exhibits the highest global rates of mangrove loss. Remotely sensed data provides timely and accurate information on mangrove distribution and dynamics critical for targeting loss hotspots and guiding intervention. This report inventories, describes and compares all known single- and multi-date remotely sensed datasets with regional coverage and provides areal mangrove extents by country. Multi-date datasets were used to estimate dynamics and identify loss hotspots (i.e., countries that exhibit greatest proportional loss). Results indicate Myanmar is the primary mangrove loss hotspot, exhibiting 35% loss from 1975–2005 and 28% between 2000–2014. Rates of loss in Myanmar were four times the global average from 2000–2012. The Philippines is additionally identified as a loss hotspot, with secondary hotspots including Malaysia, Cambodia and Indonesia. This information helps inform and guide mangrove conservation, restoration and managed-use within the region.
机译:红树林居住在热带和亚热带的120多个国家的高潮间潮汐生态系统中,为沿海社区提供重要的商品和服务,并由于大量的碳储量而为缓解全球气候变化做出了贡献。尽管具有重要意义,但全球红树林的分布仍在继续下降,这主要是由于人为驱动因素的影响,而驱动因素因地区/国家而异。南亚,东南亚和亚太地区约占世界红树林生态系统的46%,其中包括生物多样性最为丰富的红树林。该地区也是全球红树林流失率最高的地区。遥感数据提供有关红树林分布和动态的及时,准确的信息,这对于确定损失热点和指导干预至关重要。该报告清点,描述和比较了所有已知的具有区域覆盖率的单日期和多日期遥感数据集,并按国家提供了红树林面积。多日期数据集用于估算动态并确定损失热点(即比例损失最大的国家)。结果表明,缅甸是主要的红树林流失热点地区,从1975-2005年流失了35%,在2000-2014年流失了28%。缅甸的损失率是2000-2012年全球平均水平的四倍。菲律宾还被确定为损失热点,次要热点包括马来西亚,柬埔寨和印度尼西亚。这些信息有助于指导该地区的红树林保护,恢复和管理利用。

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