Drought Sensitivity of the Amazon Rainforest
Copyright policy )Drought Sensitivity of the Amazon Rainforest
Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events. Affected forest lost biomass, reversing a large long-term carbon sink, with the greatest impacts observed where the dry season was unusually intense. Relative to pre-2005 conditions, forest subjected to a 100-millimeter increase in water deficit lost 5.3 megagrams of aboveground biomass of carbon per hectare. The drought had a total biomass carbon impact of 1.2 to 1.6 petagrams (1.2 × 10 15 to 1.6 × 10 15 grams). Amazon forests therefore appear vulnerable to increasing moisture stress, with the potential for large carbon losses to exert feedback on climate change.
- French National Centre for Scientific Research France
- University of California, San Francisco United States
- University of Amsterdam Netherlands
- Utrecht University Netherlands
- National Research Institute for Agriculture, Food and Environment France
Phytomass, Biodiversité et Ecologie, Climate, vulnerability, drought, Trees, priority jou, Energy Balance, name=General, amazonie, Keywords: carbon, moisture, /dk/atira/pure/subjectarea/asjc/1000, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, Silvicultura, Biomass, Milieux et Changements globaux, AMAZON RAINFOREST, DROUGHT, sécheresse, changement climatique, drought stress, article, Droughts, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, climate change, CARBON CYCLE , phytomass, Priority Journal, adaptation à la sécheresse, Drought Stress, stress à la sécheresse, rainforest, environment, Brazil, Environmental Monitoring, climate effect, cycle du carbone, Rainforest, General Science & Technology, Climate Change, [SDE.MCG]Environmental Sciences/Global Changes, forêt amazonienne, Vulnerability, Dry Season, [SDV.BID]Life Sciences [q-bio]/Biodiversity, Carbon Cycle, Biodiversity and Ecology, Amazonia, Affordable and Clean Energy, Climate Effect, dry season, [SDV.EE]Life Sciences [q-bio]/Ecology, carbon cycle, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, biomasse, Moisture, DROUGHT;AMAZON RAINFOREST;CARBON CYCLE , Ecosystem, environmental monitoring, stress hybride, Tropical Climate, Drought, biomass, Atmosphere, tolérance à la sécheresse, Seasonal Variation, Carbon Dioxide, South America, energy balance, Carbon, Climate Action, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.MCG] Environmental Sciences/Global Changes, Medio Ambiente, Dry Weight, CARBON CYCLE, dry weight, adaptation au changement climatique, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, global climate, Global Climate, [SDV.BID] Life Sciences [q-bio]/Biodiversity
Phytomass, Biodiversité et Ecologie, Climate, vulnerability, drought, Trees, priority jou, Energy Balance, name=General, amazonie, Keywords: carbon, moisture, /dk/atira/pure/subjectarea/asjc/1000, [SDV.BV] Life Sciences [q-bio]/Vegetal Biology, Silvicultura, Biomass, Milieux et Changements globaux, AMAZON RAINFOREST, DROUGHT, sécheresse, changement climatique, drought stress, article, Droughts, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, climate change, CARBON CYCLE , phytomass, Priority Journal, adaptation à la sécheresse, Drought Stress, stress à la sécheresse, rainforest, environment, Brazil, Environmental Monitoring, climate effect, cycle du carbone, Rainforest, General Science & Technology, Climate Change, [SDE.MCG]Environmental Sciences/Global Changes, forêt amazonienne, Vulnerability, Dry Season, [SDV.BID]Life Sciences [q-bio]/Biodiversity, Carbon Cycle, Biodiversity and Ecology, Amazonia, Affordable and Clean Energy, Climate Effect, dry season, [SDV.EE]Life Sciences [q-bio]/Ecology, carbon cycle, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, biomasse, Moisture, DROUGHT;AMAZON RAINFOREST;CARBON CYCLE , Ecosystem, environmental monitoring, stress hybride, Tropical Climate, Drought, biomass, Atmosphere, tolérance à la sécheresse, Seasonal Variation, Carbon Dioxide, South America, energy balance, Carbon, Climate Action, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.MCG] Environmental Sciences/Global Changes, Medio Ambiente, Dry Weight, CARBON CYCLE, dry weight, adaptation au changement climatique, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, global climate, Global Climate, [SDV.BID] Life Sciences [q-bio]/Biodiversity
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