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	Application of the VSD Model to Determine Regional Control Targets of Acid Deposition
	Zhao He-chun ; Xie Shao-dong
	2012
关键词	Acid deposition Regional control targets VSD Cumulative frequency distribution MAGIC MODEL ACIDIFICATION SAFE
英文摘要	In order to control regional acid deposition pollution, it is necessary to determine scientific regional control targets for atmospheric acid deposition. This study proposed a method to conduct multi-site simulation using the VSD model and the simulation results were plotted by cumulative frequency distribution curves. Then the regional acid deposition control targets were determined based on the analysis of the restoration of the soil in the region under different deposition scenarios in the target years. The method was applied in the Guangzhou-Dongguan-Huizhou region. To analyze the control targets for acid deposition in this region, 25 sites were simulated by VSD model based on onsite soil sampling and investigation, and the results were plotted by cumulative frequency distribution curves. The results indicated that when S deposition was controlled alone and if the protection rate was 80%, the S control targets should be 7.68-12g.m(-2).y(-1) in the short-term and 10.24-16g.m(-2).yr(-1) in the long-term; the short-term and long-term S deposition control targets should be 5.12-8g.m(-2).yr(-1) and 7.68-12g.m(-2).yr(-1) if the protection rate was 95%. When the S and BC depositions were controlled simultaneously and if the protection rate was 80%, the S control targets should be 2.56-4 g.m(-2).yr(-1) in the short-term and 5.12-8 g.m(-2).yr(-1) in the long-term when BC deposition was 6.4-12.8 g.m(-2).yr(-1); and the S control targets should be 2.56-4 g.m(-2).yr(-1) when BC deposition was 4.8-9.6 g.m(-2).yr(-1). If the protection rate was 95%, the S control targets should be 0.64-1 g.m(-2).yr(-1) in the short-term and 5.12-8 g.m(-2).yr(-1) in the long-term when BC deposition was 6.4-12.8 g.m(-2).yr(-1); and the S control targets should be 0.64-1g.m(-2).yr(-1) in the short-term and 2.56-4g.m(-2).yr(-1) in the long-term. When BC deposition was 2-4 g.m(-2).yr(-1), S deposition should be controlled to 0.64-1g.m(-2).yr(-1) for the protection rate of 80% and 95%, and some manual restoration measures are required at the same time; Engineering, Environmental; Environmental Sciences; Materials Science, Multidisciplinary; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.4028/www.scientific.net/AMR.356-360.2647
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/324564]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Zhao He-chun,Xie Shao-dong. Application of the VSD Model to Determine Regional Control Targets of Acid Deposition. 2012-01-01.

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