Reconstructing the biogeochemical response of Indonesian coastal ecosystems to environmental change during the late Quaternary as recorded by marine sediment cores along the Sumatra - Java - Flores transect (BIORESICO)

重建第四纪晚期印度尼西亚沿海生态系统对环境变化的生物地球化学响应，由苏门答腊岛 - 爪哇 - 弗洛雷斯横带沿线的海洋沉积物岩芯记录（BIORESICO）

• 批准号: 180939063
• 负责人: Privatdozent Dr. Tim Jennerjahn
• 金额: --
• 依托单位: Leibniz-Zentrum für Marine Tropenforschung (ZMT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/180939063?language=en
• 关键词: Reconstructing; biogeochemical; response; Indonesian; coastal

Global climate change is a mosaic of regional changes to a large extent determined by region-specific feedbacks between climate and ecosystems. Therefore, the temporal/causal relationships between regional climates and ecosystems need to be investigated in order to further our process understanding related to global change. It is a prerequisite for improving predictions of future developments in a scenario of accelerated global change. Over the past decade it became obvious that the tropics play an important role in global climate change. This proposal focuses on the Indonesian archipelago, also termed the maritime continent. Although considered a key region only little information exists on past climate changes and the response of terrestrial and marine ecosystems in the proposed study area. There, changes in the monsoons, the Indian Ocean Dipole (IOD) and the El Niño/Southern Oscillation (ENSO) have affected precipitation and vegetation on land and surface circulation and upwelling in the ocean and hence the deposition of marine and land-derived organic matter. Sediment cores from the Indian Ocean margin off the Indonesian islands Sumatra and Java to Flores collected during RV SONNE cruises SO-184 and SO-189 provide highresolution archives of environmental change during the late Quaternary. A suite of biogeochemical tools in combination with palynological and paleoceanographic information will allow to reconstruct the response of terrestrial and marine ecosystems to past climate change in that region.

全球气候变化是区域变化的马赛克，在很大程度上由气候和生态系统之间的区域特定反馈决定。因此，需要研究区域气候和生态系统之间的时间/因果关系，以进一步了解与全球变化相关的过程。这是在全球变化加速的情况下改进对未来发展的预测的先决条件。在过去的十年里，热带地区在全球气候变化中扮演着重要的角色，这一点变得越来越明显。该提案的重点是印度尼西亚群岛，也被称为海洋大陆。虽然被认为是一个关键区域，但关于该研究区域过去气候变化以及陆地和海洋生态系统响应的信息很少。在那里，季风、印度洋偶极子（IOD）和厄尔尼诺Niño/南方涛动（ENSO）的变化影响了陆地上的降水和植被以及海洋的地表环流和上升流，从而影响了海洋和陆源有机质的沉积。RV SONNE巡航SO-184和SO-189收集的印度尼西亚苏门答腊岛和爪哇岛至Flores的印度洋边缘沉积物岩心提供了晚第四纪环境变化的高分辨率档案。一套生物地球化学工具结合孢粉学和古海洋学信息，将能够重建该地区陆地和海洋生态系统对过去气候变化的反应。