In long term, water hyacinth management should
be implemented taking into consideration the whole
eco-system. There is a need to reduce sewage from
industry and man activity, to regulate the pollution
caused by inputs used in the agricultural, to take ef-
fective measures to keep the natural balance of the
eco-system, to solve the present contradiction be-
tween economical development and environmental
protection, and to introduce new successful foreign
technologies in China that may save resources used
for research and control. These all are urgent ques-
tions, which need to be responded in China.