Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1620811114 |
Historical climate controls soil respiration responses to current soil moisture | |
Hawkes, Christine V.1; Waring, Bonnie G.1,2; Rocca, Jennifer D.1,3; Kivlin, Stephanie N.1,4 | |
2017-06-13 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:24页码:6322-6327 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Ecosystem carbon losses from soil microbial respiration are a key component of global carbon cycling, resulting in the transfer of 40-70 Pg carbon from soil to the atmosphere each year. Because these microbial processes can feed back to climate change, understanding respiration responses to environmental factors is necessary for improved projections. We focus on respiration responses to soil moisture, which remain unresolved in ecosystem models. A common assumption of large-scale models is that soil microorganisms respond to moisture in the same way, regardless of location or climate. Here, we show that soil respiration is constrained by historical climate. We find that historical rainfall controls both the moisture dependence and sensitivity of respiration. Moisture sensitivity, defined as the slope of respiration vs. moisture, increased fourfold across a 480-mm rainfall gradient, resulting in twofold greater carbon loss on average in historically wetter soils compared with historically drier soils. The respiration-moisture relationship was resistant to environmental change in field common gardens and field rainfall manipulations, supporting a persistent effect of historical climate on microbial respiration. Based on these results, predicting future carbon cycling with climate change will require an understanding of the spatial variation and temporal lags in microbial responses created by historical rainfall. |
英文关键词 | microbial climate change precipitation legacies |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403179300055 |
WOS关键词 | CARBON-USE EFFICIENCY ; MICROBIAL COMMUNITY ; TEMPERATE FOREST ; ORGANIC-MATTER ; AVAILABILITY ; ADAPTATION ; PHYSIOLOGY ; ECOSYSTEM ; ALTERS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/204735 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Texas Austin, Dept Integrat Biol, Austin, TX 78712 USA; 2.Utah State Univ, Dept Biol, Logan, UT 84322 USA; 3.Duke Univ, Dept Biol, Durham, NC 27708 USA; 4.Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA |
推荐引用方式 GB/T 7714 | Hawkes, Christine V.,Waring, Bonnie G.,Rocca, Jennifer D.,et al. Historical climate controls soil respiration responses to current soil moisture[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(24):6322-6327. |
APA | Hawkes, Christine V.,Waring, Bonnie G.,Rocca, Jennifer D.,&Kivlin, Stephanie N..(2017).Historical climate controls soil respiration responses to current soil moisture.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(24),6322-6327. |
MLA | Hawkes, Christine V.,et al."Historical climate controls soil respiration responses to current soil moisture".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.24(2017):6322-6327. |
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