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Unimodal Response of Soil Methane Consumption to Increasing Nitrogen Additions

文献类型：期刊论文

作者Peng, Yunfeng4; Wang, Guanqin3,4; Li, Fei3,4; Yang, Guibiao3,4; Fang, Kai3,4; Liu, Li3,4; Qin, Shuqi3,4; Zhang, Dianye3,4; Zhou, Guoying1,2; Fang, Huajun5
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2019-04-16
卷号53期号:8页码:4150-4160
ISSN号0013-936X
DOI10.1021/acs.est.8b04561
英文摘要Nitrogen (N) status has a great impact on methane (CH4) consumption by soils. Modeling studies predicting soil CH4 consumption assume a linear relationship between CH4 uptake and N addition rate. Here, we present evidence that a nonlinear relationship may better characterize changes in soil CH4 uptake with increasing N additions. By conducting a field experiment with eight N-input levels in a Tibetan alpine steppe, we observed a unimodal relationship; CH4 uptake increased at low to medium N levels but declined at high N levels. Environmental and microbial properties jointly determined this response pattern. The generality of the unimodal trend was further validated by two independent analyses: (i) we examined soil CH4 uptake across at least five N-input levels in upland ecosystems across China. A unimodal CH4 uptake-N addition rate relationship was observed in 3 out of 4 cases; and (ii) we performed a meta-analysis to explore the N-induced changes in soil CH4 uptake with increasing N additions across global upland ecosystems. Results showed that the changes in CH4 uptake exhibited a quadratic correlation with N addition rate. Overall, we suggest that the unimodal relationship should be considered in biogeochemistry models for accurately predicting soil CH4 consumption under global N enrichment.
WOS关键词MAIZE CROPPING SYSTEM ; BOREAL FOREST ; RICE FIELD ; CH4 FLUXES ; OXIDATION ; DYNAMICS ; CARBON ; CO2 ; FERTILIZATION ; GRASSLANDS
资助项目Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China[31770521] ; National Natural Science Foundation of China[91837312] ; National Natural Science Foundation of China[31825006] ; Chinese Academy of Sciences[QYZDB-SSWSMC049] ; Chinese Academy of Sciences-Peking University Pioneer Collaboration Team
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000465190300015
出版者AMER CHEMICAL SOC
源URL[http://ir.igsnrr.ac.cn/handle/311030/68622]  
专题生态系统网络观测与模拟院重点实验室_外文论文
作者单位1.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Key Lab Tibetan Med Res, Xining 810008, Qinghai, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
6.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
7.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Yunfeng,Wang, Guanqin,Li, Fei,et al. Unimodal Response of Soil Methane Consumption to Increasing Nitrogen Additions[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(8):4150-4160.
APA Peng, Yunfeng.,Wang, Guanqin.,Li, Fei.,Yang, Guibiao.,Fang, Kai.,...&Yang, Yuanhe.(2019).Unimodal Response of Soil Methane Consumption to Increasing Nitrogen Additions.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(8),4150-4160.
MLA Peng, Yunfeng,et al."Unimodal Response of Soil Methane Consumption to Increasing Nitrogen Additions".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.8(2019):4150-4160.

入库方式： OAI收割

来源：地理科学与资源研究所

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