Study of vegetation response to changing climate
How? using the stable isotopic composition of organic biomolecules

How? using the stable isotopic composition of organic biomolecules
My research focuses on Earth's climate variability, and paleovegetation reconstruction. I am interested in learning about the causes and mechanisms of past and present fluctuations in the monsoonal precipitation, and consequent variations in C3-C4 plant abundance.
I use a combination of satellite datasets, isotope-enabled organo-geochemical measurements, and climate models to recognize processes that operate from moisture source to precipitation sites. Primarily, my work involves carbon and oxygen isotopic composition of soil carbonate, carbon and hydrogen isotopic composition of lipid biomarkers as well as the analysis of climate simulations.
1. Understanding the short (annual) and long-term (centennial) variations in Indian summer and winter monsoon precipitation.
2. Evaluating the hydrological impact on past vegetation composition
3. Recognizing the competing influence of climatic, geographical and ecosystem control on stables isotopes of bulk and molecular organic carbon in plant leaves
Carbon isotopic characterization of modern plant leaves from Indo-Gangetic plain
Identifying OM sources using lipid biomarkers
Indian summer monsoon precipitation reconstruction using stables isotopes of soil carbonates
Understanding the Late Holocene evolution of largest Asian grassland ecosystem using stable isotopes of organic molecules
Characterizing the carbon isotopic discrimination of modern C3 plants across the world
Role of warming on Indian summer monsoon rainfall
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Understand the vectors of land-ocean OC transport
Characterizing the stable isotopes of the third largest river water in India: Godavari
Recognizing OM sources through stable isotopes and distribution of biomolecules
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Disentangling abiotic versus biotic control on carbon isotopes in C3 plant leaves
Characterizing the carbon isotopes of native and non-native C3 plants
First record of Northeast monsoon precipitation
Reconstructing plant type abundance: A Bayesian model approach
Characterizing stable isotopes in Indian summer monsoon precipitation from eastern India
Role of land-cover on n-alkane carbon isotopes in C3 plants: A machine learning approach
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If you have questions about our research, feel free to send me a message. I will get back to you as soon as possible.
CSIR-National Institute of Oceanography, Goa, Indi
Copyright © 2021 Dr. Sayak Basu- All Rights Reserved.
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