Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-15515-2 |
Accelerated dryland expansion regulates future variability in dryland gross primary production | |
Jingyu Yao; Heping Liu; Jianping Huang; Zhongming Gao; Guoyin Wang; Dan Li; Haipeng Yu; Xingyuan Chen | |
2020-04-03 | |
发表期刊 | Nature |
出版年 | 2020 |
英文摘要 | Drylands cover 41% of Earth鈥檚 surface and are the largest source of interannual variability in the global carbon sink. Drylands are projected to experience accelerated expansion over the next century, but the implications of this expansion on variability in gross primary production (GPP) remain elusive. Here we show that by 2100 total dryland GPP will increase by 12 卤 3% relative to the 2000鈥?014 baseline. Because drylands will largely expand into formerly productive ecosystems, this increase in dryland GPP may not increase global GPP. Further, GPP per unit dryland area will decrease as degradation of historical drylands outpaces the higher GPP of expanded drylands. Dryland expansion and climate-induced conversions among sub-humid, semi-arid, arid, and hyper-arid subtypes will lead to substantial changes in regional and subtype contributions to global dryland GPP variability. Our results highlight the vulnerability of dryland subtypes to more frequent and severe climate extremes and suggest that regional variations will require different mitigation strategies. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249597 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Jingyu Yao,Heping Liu,Jianping Huang,et al. Accelerated dryland expansion regulates future variability in dryland gross primary production[J]. Nature,2020. |
APA | Jingyu Yao.,Heping Liu.,Jianping Huang.,Zhongming Gao.,Guoyin Wang.,...&Xingyuan Chen.(2020).Accelerated dryland expansion regulates future variability in dryland gross primary production.Nature. |
MLA | Jingyu Yao,et al."Accelerated dryland expansion regulates future variability in dryland gross primary production".Nature (2020). |
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