Abstract
Molecular distributions of phospholipid ester-linked fatty acids in a soil profile of the Dinghushan Biosphere Reserve
Highlights
The increase of CO2 concentration in the atmosphere leads to the rise of temperature, which is the focus of global climate change and global carbon cycle research
The phospholipid ester-linked fatty acids (PLFA) detected in soil from the Wukesong in the Dinghushan Biosphere Preserve are mostly derived from microorganisms
The soil microbial biomass represented by the total concentration of PLFA is positively correlated to total organic carbon (TOC) content, indicating that the activity of the microbes within the soil profile is significantly controlled by the input of organic matter
Summary
The increase of CO2 concentration in the atmosphere leads to the rise of temperature, which is the focus of global climate change and global carbon cycle research. The actual carbon increment in the atmosphere, the actual carbon increment absorbed by the ocean and the total increment of fossil fuel are relatively easy to measure accurately, so the carbon increment of land use change in the world is likely the key to the “missing carbon sink”. The terrestrial ecosystem of soil organic carbon undergoing only relatively minor changes will lead to great changes of the soil organic carbon pool in absolute amounts, and can cause the atmospheric carbon exchange to be intensified, which would eventually contribute to global climate change. The forest soil organic carbon storage mechanism plays an important role in the carbon cycle of terrestrial ecosystems
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