Nitrous oxide emissions following seasonal freeze-thaw events from arable soils in Northeast China

文献类型： 外文期刊

第一作者： Chen Zhe

作者： Chen Zhe;Yang Shi-qi;Zhang Ai-ping;Zhang Qing-wen;Yang Zheng-li;Chen Zhe;Wang Wen-ying;Jing Xin;Song Wei-min;Mi Zhao-rong

作者机构：

关键词： N2O;non-growing season;nitrogen biogeochemical cycling;soil moisture;snow cover;structural equation model

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2018 年 17 卷 1 期

页码：

收录情况： SCI

摘要： Seasonal soil freeze-thaw events may enhance soil nitrogen transformation and thus stimulate nitrous oxide (N2O) emissions in cold regions. However, the mechanisms of soil N2O emission during the freeze-thaw cycling in the field remain unclear. We evaluated N2O emissions and soil biotic and abiotic factors in maize and paddy fields over 20 months in Northeast China, and the structural equation model (SEM) was used to determine which factors affected N2O production during non-growing season. Our results verified that the seasonal freeze-thaw cycles mitigated the available soil nitrogen and carbon limitation during spring thawing period, but simultaneously increased the gaseous N2O-N losses at the annual time scale under field condition. The N2O-N cumulative losses during the non-growing season amounted to 0.71 and 0.55 kg N ha(-1) for the paddy and maize fields, respectively, and contributed to 66 and 18% of the annual total. The highest emission rates (199.2-257.4 mu g m(-2) h(-1)) were observed during soil thawing for both fields, but we did not observe an emission peak during soil freezing in early winter. Although the pulses of N2O emission in spring were short-lived (18 d), it resulted in approximately 80% of the non-growing season N2O-N loss. The N2O burst during the spring thawing was triggered by the combined impact of high soil moisture, flush available nitrogen and carbon, and rapid recovery of microbial biomass. SEM analysis indicated that the soil moisture, available substrates including NH4+ and dissolved organic carbon (DOC), and microbial biomass nitrogen (MBN) explained 32, 36, 16 and 51% of the N2O flux variation, respectively, during the non-growing season. Our results suggested that N2O emission during the spring thawing make a vital contribution of the annual nitrogen budget, and the vast seasonally frozen and snow-covered croplands will have high potential to exert a positive feedback on climate change considering the sensitive response of nitrogen biogeochemical cycling to the freeze-thaw disturbance.

分类号：

  • 相关文献

[1]Identifying the key factors that affect the formation of humic substance during different materials composting. Wu, Junqiu,Zhao, Yue,Qi, Haishi,Wei, Zimin,Zhao, Xinyu,Yang, Tianxue,Du, Yingqiu,Zhang, Hui.

[2]Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation. Lu Ying,Liang Wenju,Bai Wei,Cai Qian,Wang Xuefeng,Lu Ying. 2017

[3]Enhancement of farmland greenhouse gas emissions from leakage of stored CO2: Simulation of leaked CO2 from CCS. Zhang, Xueyan,Ma, Xin,Li, Yue,Ma, Xin,Li, Yue,Wu, Yang.

[4]Nitrous Oxide and Methane Fluxes During the Maize Season Under Optimized Management in Intensive Farming Systems of the North China Plain. Shi Yue-Feng,Wu Wen-Liang,Meng Fan-Qiao,Zheng Liang,Wang Da-Peng,Ye Hui,Shi Yue-Feng,Wang Da-Peng,Ding Guang-Wei.

[5]Integrated management practices significantly affect N2O emissions and wheat-maize production at field scale in the North China Plain. Shi, Yuefeng,Wu, Wenliang,Meng, Fanqiao,Zheng, Liang,Zhang, Zhihua,Wang, Dapeng.

[6]Estimates of N2O Emissions and Mitigation Potential from a Spring Maize Field Based on DNDC Model. Li Hu,Qiu Jian-Jun,Wang Li-gang,Xu Ming-yi,Liu Zhi-qiang,Wang Wei. 2012

[7]Measurements of N2O emissions from different vegetable fields on the North China Plain. Diao, Tiantian,Guo, Liping,Yan, Hongliang,Lin, Miao,Zhang, He,Lin, Erda,Xie, Liyong,Lin, Miao,Zhang, He,Lin, Jia. 2013

[8]Integrative impacts of soil tillage on crop yield, N use efficiency and greenhouse gas emission in wheat-corn cropping system. Latifmanesh, H.,Zheng, C. Y.,Song, Z. W.,Deng, A. X.,Zhang, B. M.,Zhang, W. J.,Huang, J. L.,Li, L.,Chen, Z. J.,Zheng, Y. T.. 2016

[9]Mitigating nitrous oxide emissions from a maize-cropping black soil in northeast China by a combination of reducing chemical N fertilizer application and applying manure in autumn. Guo, Yanling,Chen, Guanxiong,Kou, Yongping,Xu, Hui,Guo, Yanling,Kou, Yongping,Luo, Liangguo. 2013

[10]Impacts of cropping practices on yield-scaled greenhouse gas emissions from rice fields in China: A meta-analysis. Feng, Jinfei,Chen, Changqing,Zhang, Yi,Zhang, Weijian,Feng, Jinfei,Song, Zhenwei,Deng, Aixing,Zheng, Chengyan,Zhang, Weijian. 2013

[11]Estimation of N-2 and N2O ebullition from eutrophic water using an improved bubble trap device. Gao, Yan,Liu, Xinhong,Wang, Yan,Guo, Junyao,Zhang, Zhenhua,Yan, Shaohua,Yi, Neng. 2013

[12]Nitrous Oxide Flux from Long-term Fertilized Black Soils in A Snowfall Process. Wang Lianfeng,Han Zuoqiang,Sun Xin,Zhang Xilin,Wang Lianfeng,Cai Yanjiang. 2010

[13]Fate of N-15 derived from composts and urea in soils under different long-term N management in pot experiments. Luo, LG,Kondo, M,Itoh, S.

[14]Response of soil moisture under different crop planting to precipitation in Central Hill Region, Sichuan Basin. Liang, Chuan,Long, Xunjian,Zhang, Chunmin,Zhang, Chunmin. 2011

[15]The changing pore size distribution of swelling and shrinking soil revealed by nuclear magnetic resonance relaxometry. Shi, Fugang,Zhang, Congzhi,Zhang, Jiabao,Shi, Fugang,Zhang, Xiangning,Yao, Jian,Shi, Fugang.

[16]Temperature and moisture responses to carbon mineralization in the biochar-amended saline soil. Sun, Junna,He, Fuhong,Zhang, Zhenhua,Shao, Hongbo,Shao, Hongbo,Xu, Gang.

[17]Moisture Effect on Soil Humus Characteristics in a Laboratory Incubation Experiment. Li, Cuilan,Gao, Shuqing,Zhang, Jinjing,Zhao, Lanpo,Li, Cuilan,Gao, Shuqing,Zhang, Jinjing,Zhao, Lanpo.

[18]Topographic Indices and Yield Variability in a Rolling Landscape of Western Canada. Chi Bao-Liang,Bing Cheng-Si,Walley, F.,Yates, T..

[19]EFFECTS OF TILLAGE IN FALLOW PERIOD AND SOWING METHODS ON WATER STORAGE AND GRAIN PROTEIN ACCUMULATION OF DRYLAND WHEAT. Deng, Yan,Deng, Yan,Sun, Min,Gao, Zhiqiang,Zhao, Hongmei,Ren, Aixia,Li, Guang,Yang, Zhenping,Zong, Yuzhen.

[20]The response of ecosystem CO2 exchange to small precipitation pulses over a temperate steppe. Hao, Yanbin,Wang, Yanfen,Mei, Xurong,Cui, Xiaoyong.

作者其他论文 更多>>

微信小程序