A review of the status of invasive plant, Case Study: water hyacinth Distribution in Guilan Province

Due to the increase in human activities, the destructive impact on the environment is not limited to a particular region of the world. Including the destructive impacts are entering non-native plant species around the world during the last 200′ years with the spread of agriculture, increase the exchange of goods, augmented human activities as well growth environmental destruction, it's increasing.
One of the damages that, especially in recent years has been considered, is the arrival of non-native plant species (invasive) water hyacinth to the natural ecosystems. It was observed the first time in 1390 in Rasht Eynak lagoon, due to the high rate of growth and reproduction, these could in a short time, the, whole surface of the Eynak lagoon where the seen for the first time in the province's natural areas, cover up.
Studies show, water hyacinth, has the ability to Attracting and purification heavy metals, but The presence of aberrant because of the severity ability to reproduce and adapt it, as an green Iron Glove can be throat of life-life species including fish and plants, directly and with disruption of the food chain for birds and other compact creatures killed them
As a result of not dealing with non-native and invasive species in wetlands will lead to a slow death. In this paper, the distribution of the species Considered in province then Short-term and medium-term control measures are described.