With the development of economy in the Yangtze River Delta district,eutrophication which brings about the bloom of green alga,hyacinth and so on,has become more and more serious.

• 随着经济的发展,长江三角洲地区的富营养化,如蓝藻、水葫芦爆发等问题日趋严重,给该区的可持续发展带来了严重的后果。