長期的な炭素循環,化石燃料,大気の構成
1Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06520-8109, USA. robert.berner@yale.edu
Nature
|November 25, 2003
まとめ
何百万年も続く長期炭素循環は,岩石と地表の炭素の交換に影響を与えます. 新しい計算により,有機物質の埋葬,化石燃料,そしてファネロゾーイク時代の大気進化に及ぼす影響が明らかになった.
科学分野:
- 地質化学 地質化学
- 古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは
- 地球科学 地球科学 地球科学
背景:
- 長期的な炭素循環は,地質的な時間尺度で岩石と地球表面の間の炭素交換を統制する.
- 複雑なフィードバックループは,炭素埋葬,栄養素循環,大気ガス (CO2,O2) と地球気候を結びつけています.
研究 の 目的:
- ファネロゾイク時代 (過去5億5000万年) の炭素流動を分析する.
- 地質学的および大気学的プロセスに対する長期的な炭素循環の影響を説明するために.
主な方法:
- 炭素の流れに関する新しい計算.
- ファネロゾイク期の炭素埋葬データの分析.
主要な成果:
- 定量化された炭素流は,有機物質の埋葬パターンに関する洞察を提供します.
- 炭素循環の動態と化石燃料の形成との関連が示された.
- 長期の炭素循環によって引き起こされる大気組成の進化を図解した.
結論:
- 長期的な炭素循環は,地球の大気と地質の進化の重要な原動力である.
- ファネロゾイク期の炭素流の理解は,気候と資源形成のモデルを強化する.
さらに関連する動画
08:12Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids BPCA
Published on: May 16, 2016
17.3K
07:32Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
Published on: June 4, 2021
4.7K
関連する概念動画
What are Biogeochemical Cycles?
31.0K
The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
31.0K
The Carbon Cycle
32.8K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
32.8K
The Sulfur Cycle
41.6K
Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...
41.6K
Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
The Fossil Record
23.0K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
23.0K
Microbes and Climate Change
88
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
88
