Affiliations: Research Center for Eco-Environmental Sciences,
Chinese Academy of Sciences, Beijing 100085, China. E-mail:
FZW@mail.rcees.ac.cn
Abstract: South China has become the third largest region associated with acid
deposition following Europe and North America, the area subject to damage by
acid deposition increased from 1.75 million km² in 1985 to 2.8 million
km² in 1993. Acid deposition has caused serious damage to ecosystem.
Combined pollution of acid rain and SO_2 showed the obvious multiple effects on
crops. Vegetable was more sensitive to acid deposition than foodstuff crops.
Annual economic loss of crops due to acid deposition damage in eleven provinces
of south China was 4.26 billion RMB Yuan. Acid deposition caused serious damage
to forest. Annual economic loss of wood volume was about 1.8 billion RMB Yuan
management, specifying acid-controlling region, controlling and abating the
total emission amount of SO_2; (2) selecting practical energy technologies of
clean coal, for example, cleansing and selecting coal, sulfur-fixed-type
industrial briqutting, abating sulfur from waste gas and so on; (3) developing
other energy sources to replace coal, including water electricity, atomic
energy and the new energy such as solar energy,wind energy and so on; (4) in
acid deposition region of south China, selecting acid-resistant tvpe of crop
and tree to decrease agricultural losses, planting more green fertilizer crops,
using organic fertilizers and liming, in order to improve buffer capacities of
soil.
