Terrestrial N2O emissions and related functional genes under climate change: A global meta-analysis
文献类型：期刊论文
| 作者 | Li, Linfeng2,3; Zheng, Zhenzhen2; Wang, Weijin3,4,5; Biederman, Joel A.6; Xu, Xingliang7 ; Ran, Qinwei2; Qian, Ruyan2; Xu, Cong2; Zhang, Biao2; Wang, Fang2,3
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| 刊名 | GLOBAL CHANGE BIOLOGY
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| 出版日期 | 2020-02-01 |
| 卷号 | 26期号:2页码:931-943 |
| 关键词 | drought nitrous oxide precipitation soil moisture soil N cycle warming |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.14847 |
| 通讯作者 | Hao, Yanbin(ybhao@ucas.ac.cn) ; Wang, Yanfen(yfwang@ucas.ac.cn) |
| 英文摘要 | Nitrous oxide (N2O) emissions from soil contribute to global warming and are in turn substantially affected by climate change. However, climate change impacts on N2O production across terrestrial ecosystems remain poorly understood. Here, we synthesized 46 published studies of N2O fluxes and relevant soil functional genes (SFGs, that is, archaeal amoA, bacterial amoA, nosZ, narG, nirK and nirS) to assess their responses to increased temperature, increased or decreased precipitation amounts, and prolonged drought (no change in total precipitation but increase in precipitation intervals) in terrestrial ecosystem (i.e. grasslands, forests, shrublands, tundra and croplands). Across the data set, temperature increased N2O emissions by 33%. However, the effects were highly variable across biomes, with strongest temperature responses in shrublands, variable responses in forests and negative responses in tundra. The warming methods employed also influenced the effects of temperature on N2O emissions (most effectively induced by open-top chambers). Whole-day or whole-year warming treatment significantly enhanced N2O emissions, but daytime, nighttime or short-season warming did not have significant effects. Regardless of biome, treatment method and season, increased precipitation promoted N2O emission by an average of 55%, while decreased precipitation suppressed N2O emission by 31%, predominantly driven by changes in soil moisture. The effect size of precipitation changes on nirS and nosZ showed a U-shape relationship with soil moisture; further insight into biotic mechanisms underlying N2O emission response to climate change remain limited by data availability, underlying a need for studies that report SFG. Our findings indicate that climate change substantially affects N2O emission and highlights the urgent need to incorporate this strong feedback into most climate models for convincing projection of future climate change. |
| WOS关键词 | GREENHOUSE-GAS FLUXES ; NITROUS-OXIDE EMISSIONS ; CARBON-DIOXIDE ; ALPINE MEADOW ; DENITRIFYING BACTERIA ; EXPERIMENTAL DROUGHT ; PERMAFROST REGION ; SOIL EMISSIONS ; ELEVATED CO2 ; NITRIC-OXIDE |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000511917700057 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/132626]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Hao, Yanbin; Wang, Yanfen |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 3.Griffith Univ, Environm Futures Res Inst, Sch Environm & Sci, Brisbane, Qld, Australia 4.Dept Environm & Sci, Brisbane, Qld, Australia 5.Univ Queensland, Sch Agr & Food Sci, Brisbane, Qld, Australia 6.ARS, Southwest Watershed Res Ctr, Tucson, AZ USA 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 8.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Linfeng,Zheng, Zhenzhen,Wang, Weijin,et al. Terrestrial N2O emissions and related functional genes under climate change: A global meta-analysis[J]. GLOBAL CHANGE BIOLOGY,2020,26(2):931-943. |
| APA | Li, Linfeng.,Zheng, Zhenzhen.,Wang, Weijin.,Biederman, Joel A..,Xu, Xingliang.,...&Wang, Yanfen.(2020).Terrestrial N2O emissions and related functional genes under climate change: A global meta-analysis.GLOBAL CHANGE BIOLOGY,26(2),931-943. |
| MLA | Li, Linfeng,et al."Terrestrial N2O emissions and related functional genes under climate change: A global meta-analysis".GLOBAL CHANGE BIOLOGY 26.2(2020):931-943. |
入库方式： OAI收割
来源：地理科学与资源研究所
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