熱帯雨林の炭素循環と気候変動
1School of GeoSciences, University of Edinburgh, Edinburgh, UK. edward.mitchard@ed.ac.uk.
Nature
|July 27, 2018
まとめ
現在 熱帯雨林は 炭素の循環を均衡させていますが 森林破壊や気候変動により 炭素の排出量が増加し 気候変動の目標を阻害します 効果的な保全政策には より良いデータが必要です
科学分野:
- 環境科学
- 気候科学
- エコロジー
背景:
- 熱帯雨林は世界の炭素循環において 極めて重要な役割を担っており 現在ではほぼ中立のシンクとして機能しています
- 森林伐採と森林破壊は炭素を放出し 気候変動は森林の炭素吸収能力に影響します
研究 の 目的:
- 炭素中立状態から炭素源への 熱帯雨林の移行を強調するためです
- この変化が地球温暖化目標に及ぼす影響を 強調するためです
- 効果的な政策行動を妨げるデータ制限を特定する.
主な方法:
- この研究は,熱帯森林の炭素動態に関する現在の理解と予測をまとめています.
- 森林伐採,森林破壊,気候変動,炭素循環の 相互作用を分析しています
主要な成果:
- 熱帯雨林は近い将来 純炭素源に変わると予測されています
- この移行は地球温暖化を2°Cに制限する課題を悪化させるでしょう.
- 森林伐採を止めるための現在の国際協定には,監視と政策実施のための十分なデータがない.
結論:
- 熱帯雨林のデータ収集とモニタリングシステムの改善が急務です.
- 効果的な保全と炭素管理のためのデータの根本的な欠如が政策措置を妨げています.
- 世界的な気候変動緩和目標を達成するために,データギャップを解決することは極めて重要です.
関連する概念動画
Global Climate Change
29.0K
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.
29.0K
The Carbon Cycle
43.9K
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.
43.9K
What is Climate?
20.9K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
20.9K
What are Biogeochemical Cycles?
39.6K
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.
39.6K
Carbon Skeletons
115.3K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
115.3K
Standard Entropy Change for a Reaction
24.9K
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in standard entropy between the products and the reactants.
24.9K


