Mangrove Development and Its Response to Asian Monsoon in the Yingluo Bay (SW China) over the Last 2000 years
Mangrove Development and Its Response to Asian Monsoon in the Yingluo Bay (SW China) over the Last 2000 years
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DOI：
10.1007/s12237-016-0156-3
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发表时间：
2017-03
影响因子：
2.7
通讯作者：
Xian-wei Meng;Peng Xia;Zhen Li;Dezhen Meng
中科院分区：
文献类型：
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作者：
Xian-wei Meng;Peng Xia;Zhen Li;Dezhen Meng
红树林位于海洋和陆地栖息地交界的特殊位置使它们容易受到区域环境变化的影响。热带亚洲的季风气候与其他热带地区不同，红树林沿着沿海地区广泛分布。因此，热带亚洲红树林的发展可能与亚洲季风的演变和相关的环境变化有关。以华北北部湾英落湾沉积物为例，利用近2000年来红树林来源有机质（CMOM）的贡献和红树林物种的总花粉浓度，对红树林的发育进行了回顾性研究。结果清楚地表明，红树林的发育（繁茂或退化）主要受亚洲季风控制的气温和降雨变化的控制。亚洲夏季风的增强型气候导致了红树林的3个繁盛期（~2.0 ~ 1.6 cal. kabp、~1.4 ~ 0.8 cal. kabp和~140年至今）。相比之下，两个恶化阶段（~ 1.6-1.4 cal. kabp和~0.8 cal. kabp至140 yearsbp）是由于亚洲冬季季风加剧期间气候变冷和干燥造成的。出乎意料的是，近2000年来，相对海平面变化、区域海水盐度、潮流以及人类活动对英落湾红树林的扩展、繁茂/退化和演替没有产生显著影响。
The characteristic location of mangroves at the interface between marine and terrestrial habitats makes them vulnerable to regional environmental change. The monsoonal climate of tropical Asia, where mangrove forests are broadly distributed along the coastal zone, differs from that of the other tropical regions. Therefore, mangrove development in tropical Asia is likely related to the evolution of the Asian monsoon and related environmental changes. As a case study, mangrove development was retrospectively studied using the contribution of mangrove-derived organic matter (CMOM), combined with the total pollen concentration of mangrove species, in bulk sediments of the Yingluo Bay, northern Beibu Gulf (SW China) over the last 2000 years. The results clearly show that mangrove development (flourishing or deteriorating) is primarily controlled by the changes in the air temperature and rainfall, which are controlled by the Asian monsoon. The three mangrove flourishing stages (~2.0–1.6 cal. kabp, ~1.4–0.8 cal. kabp, and from ~140 yearsbpto present) result from warmer and wetter climates during the intensified Asian summer monsoon. In contrast, the two deteriorating stages (~1.6–1.4 cal. kabpand from ~0.8 cal. kabpto 140 yearsbp) result from colder and dryer climates during the intensified Asian winter monsoon. Unexpectedly, the relative sea-level changes, regional seawater salinity, and tidal current, as well as human activity have not imposed notable effects on extension, flourishing/deterioration, and succession of the mangrove forest over the last 2000 years in the Yingluo Bay.