DOI: 10.1016/j.atmosenv.2014.10.034
Scopus记录号: 2-s2.0-84908244108
论文题名: Combined effects of nitrogen fertilization and biochar on the net global warming potential, greenhouse gas intensity and net ecosystem economic budget in intensive vegetable agriculture in southeastern China
作者: Li B ; , Fan C ; H ; , Zhang H ; , Chen Z ; Z ; , Sun L ; Y ; , Xiong Z ; Q
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 100 起始页码: 10
结束页码: 19
语种: 英语
英文关键词: Biochar
; Greenhouse gas intensity (GHGI)
; Net ecosystem economic budget (NEEB)
; Net global warming potential (net GWP)
; Vegetable agriculture
Scopus关键词: Bio chars
; Combined effect
; Global warming potential
; Net ecosystem economic budget (NEEB)
; Nitrogen fertilization
; Southeastern china
; agricultural chemical
; biochar
; methane
; nitrogen fertilizer
; nitrous oxide
; unclassified drug
; climate change
; economic analysis
; emission
; environmental economics
; fertilizer application
; global warming
; greenhouse gas
; intensive agriculture
; methane
; net ecosystem exchange
; nitrogen
; nitrous oxide
; vegetable
; agricultural management
; agriculture
; Amaranthus
; Article
; bok choy
; budget
; China
; controlled study
; coriander
; crop production
; ecosystem
; factorial design
; fertilization
; field experiment
; greenhouse effect
; greenhouse gas
; greenhouse gas intensity
; net ecosystem economic budget
; net global warming potential
; soil temperature
; tung choy
; vegetable
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Field experiments were conducted to determine the effects of nitrogen (N) fertilization and biochar addition on the net global warming potential (net GWP), greenhouse gas intensity (GHGI) and net ecosystem economic budget (NEEB). These experiments were conducted in an intensive vegetable field with 4 consecutive vegetable crops in 2012 and 2013 in southeastern China. The experiment was conducted with a 32 factorial design in triplicate at N fertilizer rates of 0, 1475, 1967kgNha-1 and biochar rates of 0, 20, and 40tha-1. Although CH4 emissions were not obviously affected by N fertilization, N2O emissions increased by 27.2-116.2% and the net GWP increased by 30.6-307.2%. Consequently, the GHGI increased significantly, but vegetable yield and the NEEB did not improve. Furthermore, biochar amendments did not significantly influence CH4 emissions, but significantly decreased the N2O emissions by 1.7-25.4%, the net GWP by 89.6-700.5%, and the GHGI by 89.5-644.8%. In addition, vegetable yields significantly increased by 2.1-74.1%, which improved the NEEB. Thus, N fertilization did not increase vegetable yields or the NEEB. However, N fertilization did increase the net GWP and GHGI. In contrast, biochar additions resulted in lower N2O emissions and net GWP and GHGI, but increased vegetable yield and the NEEB in the intensive vegetable production system. Therefore, appropriate biochar amendment should be studied to combat changing climate and to improve the economic profits of vegetable production. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82098
Appears in Collections: 气候变化事实与影响
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作者单位: Jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
Recommended Citation:
Li B,, Fan C,H,et al. Combined effects of nitrogen fertilization and biochar on the net global warming potential, greenhouse gas intensity and net ecosystem economic budget in intensive vegetable agriculture in southeastern China[J]. Atmospheric Environment,2015-01-01,100