中国南方典型地区油-稻轮作条件下大气SO2干沉降速率动态变化

应用生态学报 ›› 2003, Vol. ›› Issue (9): 1543-1546.

中国南方典型地区油-稻轮作条件下大气SO₂干沉降速率动态变化

胡正义¹, 徐成凯¹, 曹志洪¹, 王体健², 赵言文³

1. 中国科学院南京土壤研究所土壤圈物质循环重点实验室, 南京 210008;
2. 南京大学大气科学系, 南京 210008;
3. 南京农业大学, 南京 210095

收稿日期:2001-03-22 修回日期:2001-08-31 出版日期:2003-09-15
通讯作者: 胡正义,男,1963年生,副研究员,主要从事土壤圈硫素循环和植物硫素营养研究,发表论文47篇.Tel:025-6881107,E-mail:zhyhu@issasac.cn.
基金资助:
国家基础研究发展规划项目(G1999011805);中国科学院知识创新工程领域前沿项目(ISSASIP0205);中国科学院红壤生态试验站资助项目

Dynamics of dry deposition velocities (V_d) of atmospheric SO₂ on rapeseed/rice rotation systems in selected area of South China

HU Zhengyi¹, XU Chengkai¹, CAO Zhihong¹, WANG Tijian², ZHAO Yanwen³

1. LMCP, Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China;
2. Nanjing University, Nanjing 210008, China;
3. Nanjing Agricultural University, Nanjing 210095, China

Received:2001-03-22 Revised:2001-08-31 Online:2003-09-15

摘要/Abstract

摘要： 以1998年11月～1999年10月中国科学院红壤生态试验站农田小气候观测站气象梯度资料(温度、风速、气压),计算近地面湍流特征参数(u^*、θ^*、L),然后采样阻力模式计算SO₂干沉降速率(V_d),研究了该地油-稻轮作条件下大气SO₂干沉降V_d动态变化。结果表明,一年中大气SO₂于沉降V_d时平均年均值0.124～0.897cm·s^-1(mean±SE=0.507±0.167cm·s^-1).一年中大气SO₂干沉降V_d存在如下规律性:白天>晚上。3～8月份SO₂V_d平均值(0.611cm·s^-1大于9～12、1～2月份SO₂V_d平均值(0.401cm·s^-1)。水稻生长期间(0.605±0.093cm·s^-1)>油菜(0.491±0.166cm·s^-1)>休闲(0.342±0.174cm·s^-1)。

Abstract: With the profile meteorological data collected from the farmland micro-meteorological experimental substation, Experiment Station of Red Earth Ecology, Yingtan, Jiangxi, Chinese Academy of Sciences during rapeseed/rice rotation from Nov.1998 to Oct.1999, the surface layer turbulence characteristic parameters (u^*,θ^*,L) and the atmospheric SO₂ dry deposition velocities (V_d) were calculated.The results indicated that the hourly mean V_d of SO₂ dry deposition was ranged from 0.124 to 0.897 cm·s^-1 (mean±SE = 0.507±0.167 cm·s^-1), and its regular dynamic pattern was as follows: it was always higher at daytime than at night, and the mean V_d of SO₂ dry deposition during March-August(0.611 cm·s^-1) was obviously greater than that during Sept.- Dec.and Jan.-Feb.(0.401 cm·s^-1).The mean V_d of SO₂ dry deposition during various crop growth stages was decreased as the order of rice (0.605±0.093 cm·s^-1) > rapeseed (0.491±0.166 cm·s^-1) > follow (0.342±0.174 cm·s^-1).

中图分类号:

S181

胡正义, 徐成凯, 曹志洪, 王体健, 赵言文. 中国南方典型地区油-稻轮作条件下大气SO₂干沉降速率动态变化[J]. 应用生态学报, 2003, (9): 1543-1546.

HU Zhengyi, XU Chengkai, CAO Zhihong, WANG Tijian, ZHAO Yanwen. Dynamics of dry deposition velocities (V_d) of atmospheric SO₂ on rapeseed/rice rotation systems in selected area of South China[J]. Chinese Journal of Applied Ecology, 2003, (9): 1543-1546.

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中国南方典型地区油-稻轮作条件下大气SO₂干沉降速率动态变化

Dynamics of dry deposition velocities (V_d) of atmospheric SO₂ on rapeseed/rice rotation systems in selected area of South China

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