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)

全球气候变化是区域变化的马赛克，在很大程度上是由气候和生态系统之间的区域反馈决定的。因此，需要研究区域气候和生态系统之间的时间/因果关系，以促进我们对与全球变化有关的进程的理解。这是在全球变化加速的情况下改进对未来事态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。这项提议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，但关于拟议研究区域过去的气候变化以及陆地和海洋生态系统的反应的信息很少。在那里，季风、印度洋偶极子(IOD)和厄尔尼诺/南方涛动(ENSO)的变化影响了陆地和地表环流上的降水和植被以及海洋中的上升流，从而影响了海洋和陆地来源的有机物质的沉积。从印度尼西亚苏门答腊岛和爪哇岛附近的印度洋边缘到Flores的沉积物岩芯是在Sonne号RV游轮上采集的，So-184和So-189提供了第四纪晚期环境变化的高分辨率档案。一套生物地球化学工具与孢粉和古海洋学信息相结合，将能够重建该区域陆地和海洋生态系统对过去气候变化的反应。

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.