红壤典型地区大气硫输入的干沉降通量研究——以江西红壤站为例

应用生态学报 ›› 2001, Vol. 12 ›› Issue (6): 923-926.

红壤典型地区大气硫输入的干沉降通量研究——以江西红壤站为例

王体健¹, 李宗恺¹, 胡正义², 曹志洪²

1. 南京大学大气科学系, 南京, 210093;
2. 中国科学院南京土壤研究所土壤圈物质循环开放研究实验室, 南京, 210008

收稿日期:1999-08-27 修回日期:1999-11-16 出版日期:2001-11-25 发布日期:2001-11-25
通讯作者: 王体健,男,1968年生,博士,副教授,主要从事酸沉降、大气和土壤相互作用等方面的研究工作,发表论文20余篇.E-mail:Wangtj@263.net E-mail:Wangtj@263.net
基金资助:
国家自然科学基金(49771051)、中国科学院士壤圈物质循环开放室和红壤生态站资助项目.

Dry deposition flux of air sulphur at a typical red soil area-with Jiangxi Red Soil Station as example

WANG Tijian¹, LI Zongkai¹

Department of Atmospheric Science, Nanjing University, Nanjing 210093), HU Zhengyi, CAO Zhihong(Nanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008

Received:1999-08-27 Revised:1999-11-16 Online:2001-11-25 Published:2001-11-25

摘要/Abstract

摘要： 在江西(鹰潭)红壤典型地区农田下垫面上进行大气SO₂、硫酸盐(SO₄^2-)的浓度采样,利用阻力模式计算SO₂和SO₄^2-的干沉降速度,估算大气S输入农田生态系统的干沉降通量.结果表明,农田下垫面上SO₂和SO₄^2-干沉降速度的平均值分别是0.3、0.23cm·s^-1.干沉降速度具有明显的日变化特征,一般白天大于夜间,午后出现最大值.大气S输入农田生态系统的半年干沉降通量为6.7g·m^-2.

Abstract: The concentrations of SO₂ and SO₄^2- in air were observed on farmland at Yingtan,the typical red soil area of Jiangxi Province.Based on data provided by the automatic meteorological station of China Ecosystem Research Network,the dry deposition velocity of SO₂ and SO₄^2- was calculated using a resistance model,and the dry deposition flux of sulphur from the atmosphere to the farmland ecosystem was estimated.The results showed that the average dry deposition velocity(Vd)of SO₂ and SO₄^2- was 0.43 and 0.23cm·s^-1,respectively.The Vd of SO₂ and SO₄^2- in the daytime was significantly higher than that at night,and the highest velocity occurred in the afternoon.The total annual dry-deposition flux of sulphur inputted to farmland ecosystems was 13.4g ·m^-2.

中图分类号:

X142

王体健, 李宗恺, 胡正义, 曹志洪. 红壤典型地区大气硫输入的干沉降通量研究——以江西红壤站为例[J]. 应用生态学报, 2001, 12(6): 923-926.

WANG Tijian, LI Zongkai. Dry deposition flux of air sulphur at a typical red soil area-with Jiangxi Red Soil Station as example[J]. Chinese Journal of Applied Ecology, 2001, 12(6): 923-926.

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