1. Dep. of Earth Sciences; National Cheng Kung Univ.; Tainan 70101 Taiwan
2. State Key Lab. of Urban and Regional Ecology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; 18 Shuangqing Beijing 100085 China
3. Division of Crop Science; Taiwan Agricultural Research Institute; Taichung City 41362 Taiwan
4. Dep. of Environmental Science and Engineering; National Pingtung Univ. of Science and Technology; Pingtung 91201 Taiwan
5. Dep. of Resource Environment and Green Industries; Univ. of Kang Ning; Tainan 70901 Taiwan
6. Dep. of Atmospheric Sciences; Chinese Culture Univ.; Taipei 11114 Taiwan