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Topic 5. Climate versus anthropogenic forcing of Late Holocene environmental change affecting Indonesian marine, coastal, and terrestrial ecosystems (CAFINDO)

A detailed analysis of past environmental variability in the Indonesian region related to climate change is vital to reduce uncertainties about future regional developments. Over historical times the effects of natural climate on environmental variability have been "modified" by an increasing impact of human activities. To assess this human contribution to environmental change, high-resolution records of natural climate variability as well as of environmental variability in regions having been subject to various degrees of anthropogenic forcing are needed. Thus, discerning past natural climate forcing and the impacts of agricultural activities, forestry and pollution (etc.) on environmental variability in Indonesia could support a better estimation of future environmental variability in times of accelerating global change.
Consequently, this project aims to study both, the natural environmental variability and the effects of increasing land-use (and other factors) by humans during the last 4,000 years. By outlining the interplay between natural variability and anthropogenic forcing, this project will contribute to develop strategies for the governance and management of Indonesian marine, coastal, and terrestrial ecosystems.

For the proposed project surface sediments from the Java Sea collected by the Indonesian proponents will be utilized to assess the present-day state of marine sedimentary proxies indicative for various terrestrial and marine environmental variables. Based on this "calibration" sediments accumulating offshore two rivers from Kalimantan that are largely unbiased by human interference (Pembuang and Jelai), and two rivers from Java that are strongly affected by land-use and irrigation (Bengawan Solo and Citarum) will be analyzed in order to untangle natural and anthropogenic induced environmental changes during the past 4,000 years.

Subproject 1
Climate history of the Java Sea during the late Holocene and its relation to human activity in Java and Kalimantan
Subproject 2
Gradients in carbon and nutrient input into the Java Sea related to human activities in river catchments along the transect Java - Kalimantan during the late Holocene
Subproject 3
Vegetation, climate, fire dynamics and human impacts in Java and southern Kalimantan inferred from pollen, spore and charcoal deposits in the Java Sea during the Late Holocene
Subproject 4
Capacity building and dissemination of research results

  Coordination

 

in Germany

 

Prof. Dr. Dierk Hebbeln
MARUM - Center for Marine Environmental Sciences
University of Bremen
Leobener Str.
28359 Bremen
dhebbeln@marum.de

 

in Indonesia

 

Dr. Haryadi PERMANA

Research Center for Geotechnology
Indonesia Institute of Sciences
Jl. Sangkuriang, Bandung, 40135-INDONESIA
Ph. 62-22-250 3654
Fax: 62-22-250 45 93
hpharper.permana@gmail.com

cc to permana@geotek.lipi.go.id