XVI International Botanical Congess
The Yellow River Delta, located in east China's Shandong province, is one of the three largest deltas in China. Owing to the limitation of salinized soil condition, the natural vegetation types mainly are salt meadows and scrub in the delta. Six or seven community types can be classified and common plant species of each community are only 6-12. The flora in this area are about three hundred and most of them are C3 plants. among the three hundred plants, less than ten species are dominant and edicator. It is shown through primary study that microbiological diversity get down distinctly and soil salt go up if removed dominant plant species.