Ecological service function significance of Sanjiang plain wetland

Wetland is an ecological system that it has a variety of unique features,it not only provides plenty of food for human beings,raw material and water resource,but also has important function in climate regulation,water regulation,water purification,soil and water conservation,material production,protection of biodiversity and provide habitat for animals and plants,education,leisure and tourism.Sanjiang plain as China's largest concentrated distribution area of the freshwater marsh wetland,after decades of development,already became our country's important commodity grain production.Although in recent years there were large drainage reclamation of wetland in Sanjiang plain,it is still important to water,flood regulation functions and biodiversity value,at the same time the Sanjiang Plain Wetlands also plays an important role in the regulation of the local climate.Due to the more serious destruction of wetland ecological system,ecological service function is reduced,so the wetland protection,wetland restoration,wetland ecological function regulation is a brook no delay work.