DOI: 10.1016/j.atmosenv.2013.11.052
Scopus记录号: 2-s2.0-84890017574
论文题名: Increase in ammonia volatilization from soil in response to N deposition in Inner Mongolia grasslands
作者: Zhang Y ; , Han X ; , He N ; , Long M ; , Huang J ; , Zhang G ; , Wang Q ; , Han X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 84 起始页码: 156
结束页码: 162
语种: 英语
英文关键词: Fertilization
; Grassland
; N addition regime
; N cycle
; N deposition
Scopus关键词: Ammonia
; Experiments
; Nitrogen fertilizers
; Soils
; Fertilization
; Grassland
; N cycles
; N deposition
; Deposition
; ammonia
; nitrogen
; ammonia
; atmospheric deposition
; estimation method
; growing season
; nitrogen cycle
; semiarid region
; simulation
; soil emission
; volatilization
; article
; atmospheric deposition
; fertilization
; grassland
; growing season
; Mongolia
; nitrogen deposition
; priority journal
; soil
; volatilization
; China
; Nei Monggol
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: Ammonia (NH3) is an important component of the nitrogen (N) cycle in terrestrial ecosystems and is a significant atmospheric pollutant. Results from studies of ammonia emissions from semi-arid grasslands have been infrequently reported although these emissions may be increasing rapidly with a subsequent increase in atmospheric N deposition. Moreover, whether N deposition regimes (fertilization vs. atmospheric N deposition) influence NH3 volatilization from soil is unclear. We conducted an N deposition experiment in an Inner Mongolian grassland with nine levels of N addition (0, 1, 2, 3, 5, 10, 15, 20, and 50gNm-2yr-1) and two additional N regimes: a two-pulse addition (N2) simulating fertilization and monthly addition (N12) simulating atmospheric N deposition. We investigated NH3 volatilization from the soil in 2010 and 2011 after the addition of N. NH3 volatilization rates significantly increased with increasing intensities of N addition for both the two-pulse (R2=0.993, P<0.001) and monthly addition (R2=0.992, P<0.001). Cumulative NH3 emissions during the growing season were higher for the monthly addition regime (1.28-3.54gNm-2) than the two-pulse addition regime (1.12-2.71gNm-2) (P<0.001), and there was a significant inter-annual variation in both of the N addition regimes. NH3 volatilization rates and cumulative emissions were significantly positively correlated with soil ammonium concentration in both N addition regimes. Overall, a higher level of N application at a higher frequency resulted in higher NH3 emissions indicating that the assessments made in most N fertilization experiments will underestimate the effects of N deposition on NH3 emissions from soils as well as on N cycles. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80838
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Yuquan Road, Beijing 100049, China; Synthesis Research Center of Chinese Ecosystem Research Network, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
Recommended Citation:
Zhang Y,, Han X,, He N,et al. Increase in ammonia volatilization from soil in response to N deposition in Inner Mongolia grasslands[J]. Atmospheric Environment,2014-01-01,84