Effect Of Screening And Water Purification Of Salt Tolerance Emergent Plants

Tianjin Binhai New Area is located in the Bohai Bay on thewest coast, coastline153km, the former retreat of Haiti, soil andwater bodies salinization, eutrophication, wetland resource degradationhas led to serious degradation of wetlands, wetland plant speciesdiversity decreased regional aquatic ecosystems system vulnerable. Andhow to achieve clear water, green shore targets in this fragilewater system, and build ecological protection of urban and ruralwater systems is a very significant current ecological construction inTianjin Binhai New Area is also facing a very critical issue. Suchhigh salinity and the presence of a certain degree of eutrophicationin the Binhai New Area of water features, water purification andin order to achieve the purpose of ecological restoration, the key isto solve the coastal areas of aquatic ecosystems is difficult to buildthe survival of aquatic plants, single species or ecological missingissues, construct suitable water quality characteristics of economicallyviable aquatic vegetation patterns and optimized configuration schemefor saline areas of ecological restoration of eutrophic water providetheoretical and practical basis.Tianjin Binhai area of aquatic plants through research, select8kinds of more widespread use of emergent plants, according to theusual method of plant salt tolerance screening, and study differentconcentrations of salt water stress quite morphology of plants,physiological and ecological impact of screening can be located inthe Tianjin Binhai New Area, the natural environment and climaticconditions can be grown in salt emergent plants to determine thethreshold tolerant plants, water aquatic ecosystems, species recoveryand reconstruction work provided the source.Absorption of water by plant nutrients many factors, in saltedwater, different salinity levels on the growth of aquatic plants,physiology will produce different degrees of impact, the paperselected under different salinities salt Pioneer plants, salinity affectwater absorption of nutrients to plants, water purification plants tobe evaluated.In addition, the paper also select representative regions Saltemergent plants Demonstration Project Restoration. According to waterquality and sediment conditions Demonstration Zone, select tolerantpioneer plant by plant growth dynamics observation, observation restorewater ecosystems during and after recovery test area, sediment andplant nutrient levels, evaluate these pioneer feasibility of plants andtheir different configurations in the coastal saline areas of waterrecovery, competition and expansion capability between plants providetechnical support for the salted water salinization of coastal aquaticrestoration control dispatching work.