| 标题 |
  Increasing impact of warm droughts on northern ecosystem productivity over recent decades 近几十年来，温暖干旱对北方生态系统生产力的影响越来越大
相关领域
环境科学
生态系统
陆地生态系统
温带气候
初级生产
气候变化
生长季节
中纬度
碳汇
生产力
大气科学
气候学
生态学
生物
地质学
宏观经济学
经济
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| 网址 | |
| DOI | |
| 其它 | 期刊Nature Climate Change，摘要：Climate extremes such as droughts and heatwaves have a large impact on terrestrial carbon uptake by reducing gross primary production (GPP). While the evidence for increasing frequency and intensity of climate extremes over the last decades is growing, potential systematic adverse shifts in GPP have not been assessed. Using observationally-constrained and process-based model data, we estimate that particularly northern midlatitude ecosystems experienced a +10.6% increase in negative GPP extremes in the period 2000–2016 compared to 1982–1998. We attribute this increase predominantly to a greater impact of warm droughts, in particular over northern temperate grasslands (+95.0% corresponding mean increase) and croplands (+84.0%), in and after the peak growing season. |
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