DOI: 10.1002/2015JD024441
论文题名: Wet acid deposition in Chinese natural and agricultural ecosystems: Evidence from national-scale monitoring
作者: Yu H. ; He N. ; Wang Q. ; Zhu J. ; Xu L. ; Zhu Z. ; Yu G.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2016
卷: 121, 期: 18 起始页码: 10995
结束页码: 11005
语种: 英语
英文关键词: acid deposition
; gross domestic product
; nitrate
; pH
; precipitation
; sulfate
Scopus关键词: acid deposition
; agricultural ecosystem
; atmospheric pollution
; environmental monitoring
; Gross Domestic Product
; nitrate
; pH
; precipitation (chemistry)
; spatial variation
; suburban area
; sulfate
; China
; Nei Monggol
; Qinghai-Xizang Plateau
英文摘要: Acid deposition in precipitation has received widespread attention. However, it is necessary to monitor the acid deposition in Chinese agricultural and natural ecosystems because data derived from traditional urban/suburban observations might overestimate it to some extent. In this study, we continuously measured the acid deposition through precipitation (pH, sulfate (SO4 2−), and nitrate (NO3 −)) in 43 field stations from 2009 to 2014 to explore the spatial patterns and the main influencing factors of acid deposition in Chinese agricultural and natural ecosystems. The results showed that the average precipitation pH at the 43 stations varied between 4.10 and 8.25 (average: 6.2) with nearly 20% of the observation sites being subjected to acid precipitation (pH < 5.6). The average deposition of SO4 2− and NO3 − was 115.99 and 32.93 kg ha−1 yr−1, respectively. An apparent regional difference of acid deposition in Chinese agricultural and natural ecosystems was observed, which was most serious in south and central China and less serious in northwest China, Inner Mongolia, and Qinghai-Tibet. The level of economic development and amount of precipitation could explain most of the spatial variations of pH, SO4 2−, and NO3 − depositions. It is anticipated that acid deposition might increase further, although the current level of acid deposition in these Chinese agricultural and natural ecosystems was found to be less serious than projected from urban/suburban data. The control of energy consumption should be strengthened in future to prevent an increase of acid deposition in China. ©2016. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62822
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Yu H.,He N.,Wang Q.,et al. Wet acid deposition in Chinese natural and agricultural ecosystems: Evidence from national-scale monitoring[J]. Journal of Geophysical Research: Atmospheres,2016-01-01,121(18)