Spatial and temporal distribution Characteristic of China acid rain and its harm

The acid rain in its natural environment, industrial and agricultural production and human health in serious harm, by the various national attentions, has become a worldwide environmental problem. Since the 80s of last century, along with economic development, China's acid rain pollution was accelerating trend in Europe and North America has become the world's third largest major contributor to acid rain, through a database search, find the relevant departmental annual reports, national survey The distribution of acid rain, more than 10 years of Acid Rain in China and changes in spatial and temporal distribution characteristics of a systematic analysis and research. To understand the impact of acid rain on soil structure, for us to study the impact of acid rain on the Three Gorges Dam is of great significance.