Factors controlling fluxes and coastal aquatic storage of carbon at the superhumid continental margin of the southern Andes

安第斯山脉南部超湿润大陆边缘通量和沿海水生碳储存的控制因素

• 批准号: 111083487
• 负责人: Professor Dr. Helge W. Arz
• 金额: --
• 依托单位: Leibniz-Institut für Ostseeforschung Warnemünde (IOW)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/111083487?language=en
• 关键词: Factors; controlling; fluxes; coastal; aquatic

To understand the role of carbon cycling in context of future global warming, investigations and quantifications of regional carbon fluxes are important to improve the knowledge of processes controlling the fate of carbon on a local and regional scales. During the Holocene globally important amounts of carbon have been stored reversibly in peat bogs and peaty soils as well as in sapropel-like sediments of fjords and lakes at the superhumid continental margin of southernmost Chile. However, the effect of changes in the westerly-controlled precipitation and temperature as well as sea level fluctuations on the carbon budget is still unexplored. While previous studies concentrated on the organic carbon accumulation in peaty soils, this project aims to analyse and quantify the carbon transfer (as dissolved and particulate organic carbon; DOC, POC) from terrestrial into aquatic reservoirs in function of climatic, morphological, and ecological factors at selected representative sites. Furthermore, the controlling mechanism of the quatic accumulation and remineralisation of organic matter will be investigated based on sediment cores from lakes and fjords along a 200 km long transect across the southernmost Chilean continental margin. The project tries to improve the knowledge of processes and controlling mechanism of carbon sinks and remobilisation.

为了了解碳循环在未来全球变暖背景下的作用，区域碳通量的调查和量化对于提高对局部和区域尺度上控制碳命运的过程的认识是重要的。在全新世全球重要的碳量已被可逆地存储在泥炭沼泽和泥炭土壤，以及在腐泥状沉积物的峡湾和湖泊在智利最南端的超湿润大陆边缘。然而，西风控制的降水和温度的变化以及海平面波动对碳收支的影响仍然是未知的。虽然以前的研究集中在泥炭土壤中的有机碳积累，本项目的目的是分析和量化的碳转移（溶解和颗粒有机碳; DOC，POC）从陆地到水生水库的气候，形态和生态因素的功能在选定的代表性网站。此外，控制机制的quatic积累和有机质的矿化将调查的基础上，从湖泊和峡湾的沉积物芯沿着200公里长的横断面横跨智利最南端的大陆边缘。该项目试图提高对碳汇和再动员过程和控制机制的认识。

项目成果

Holocene denudation rates from the superhumid southernmost Chilean Patagonian Andes (53°S) deduced from lake sediment budgets

根据湖泊沉积物预算推导出超湿润智利最南端巴塔哥尼亚安第斯山脉（南纬 53°）的全新世剥蚀率

• DOI: 10.1016/j.geomorph.2013.01.009
• 发表时间: 2015
• 期刊: Geomorphology
• 影响因子: 3.9
• 作者: Breuer;Kilian
• 通讯作者: Kilian

Holocene sea-surface temperature variability in the Chilean fjord region

智利峡湾地区全新世海面温度变化

• DOI: 10.1016/j.yqres.2014.07.009
• 发表时间: 2014
• 期刊: Quaternary Research
• 影响因子: 2.3
• 作者: Caniupán;M.· Lamy;Kaiser;Kilian;Mollenhauer;Sandoval;DeHolz;Pantoja;Wellner;Tiedemann
• 通讯作者: Tiedemann

Holocene variations in productivity associated with changes in glacier activity and freshwater flux in the central basin of the Strait of Magellan

• DOI: 10.1016/j.palaeo.2015.06.023
• 发表时间: 2015-10-15
• 期刊: PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
• 影响因子: 3
• 作者: Aracena, Claudia;Kilian, Rolf;Kissel, Catherine
• 通讯作者: Kissel, Catherine

Isoprenoid and branched GDGT-based proxies for surface sediments from marine, fjord and lake environments in Chile

• DOI: 10.1016/j.orggeochem.2015.10.007
• 发表时间: 2015-12
• 期刊: Organic Geochemistry
• 影响因子: 3
• 作者: J. Kaiser;Stefan Schouten;R. Kilian;H. Arz;F. Lamy;J. Damsté

Peat decomposition records in three pristine ombrotrophic bogs in southern Patagonia

• DOI: 10.5194/bg-9-1479-2012
• 发表时间: 2012-01-01
• 期刊: BIOGEOSCIENCES
• 影响因子: 4.9
• 作者: Broder, T.;Blodau, C.;Knorr, K. H.
• 通讯作者: Knorr, K. H.