Measurements of nitrous oxide emissions from vegetable production in China
文献类型:期刊论文
作者 | Xiong, ZQ; Xie, YX; Xing, GX; Zhu, ZL; Butenhoff, C |
刊名 | ATMOSPHERIC ENVIRONMENT
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出版日期 | 2006-04-01 |
卷号 | 40期号:12页码:2225-2234 |
关键词 | crop system tillage management nitrogen source emission factor sampling strategy |
ISSN号 | 1352-2310 |
DOI | 10.1016/j.atmosenv.2005.12.008 |
通讯作者 | Xiong, ZQ(zqxiong@issas.ac.cn) |
英文摘要 | Nitrous oxide (N2O) emissions resulting from Chinese vegetable production were measured. A site in suburban Nanjing (East coast; Jiangsu Province) was monitored from November 2001 to January 2003, in which five consecutive vegetable crops were sown. The crops consisted of radish, baby bok choy, lettuce, second planting of baby bok choy, and finally celery. Results suggested that N2O emission events occur in pulses. The average N2O-N flux for all five crops was 148 +/- 9 mu gN m(-2) h(-1) and the average emission rate was 12 +/- 0.7 kg N ha(-1). The average seasonal emission fluxes ranged from 37 mu g N m(-2) h(-1) in the radish plot to 300ggN m(-2) h(-1) in the celery plot. The celery field produced the greatest cumulative emission of 5.8 kg N ha(-1) while the baby bok choy field had the lowest rate of 0.96-1.0 kg N ha(-1). In total, 0.73% of applied fertilizer N was emitted as N2O-N as a whole. The lettuce field had the largest emission factor of 2.2%. Results indicate that emissions from vegetable field are a potential source of national N2O inventory. Temporal variation is much greater than spatial variation and the corresponding CV averaged 115% and 22%, respectively. Under the same total sampling quantity, increasing sampling frequency is more important than increasing spatial replicates. (c) 2006 Elsevier Ltd. All rights reserved. |
收录类别 | SCI |
WOS关键词 | CROPPING SYSTEMS ; SOIL ; N2O ; AGRICULTURE ; DENITRIFICATION ; FIELD ; METHODOLOGY ; FERTILIZER ; GRASSLAND ; INVENTORY |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
语种 | 英语 |
WOS记录号 | WOS:000236527700014 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558591 |
专题 | 南京土壤研究所 |
通讯作者 | Xiong, ZQ |
作者单位 | 1.Portland State Univ, Dept Phys, Portland, OR 97207 USA 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
推荐引用方式 GB/T 7714 | Xiong, ZQ,Xie, YX,Xing, GX,et al. Measurements of nitrous oxide emissions from vegetable production in China[J]. ATMOSPHERIC ENVIRONMENT,2006,40(12):2225-2234. |
APA | Xiong, ZQ,Xie, YX,Xing, GX,Zhu, ZL,&Butenhoff, C.(2006).Measurements of nitrous oxide emissions from vegetable production in China.ATMOSPHERIC ENVIRONMENT,40(12),2225-2234. |
MLA | Xiong, ZQ,et al."Measurements of nitrous oxide emissions from vegetable production in China".ATMOSPHERIC ENVIRONMENT 40.12(2006):2225-2234. |
入库方式: iSwitch采集
来源:南京土壤研究所
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