The Distribution Of Vegetation And Assessment Of The Ecological Restoration For The Degraded Chaganoor Lake Basin Wetlands

In this article, the ecological and vegetation of Chagannoor lake was investigated and analyzed. The results showed that the lake water and the Lakeside soil proved to be severe salinization. The vegetation of the lakeside shows a high biodiversity, which herbs are absolute advantage. Mesophydrophyte plant communities’constructive species mainly to be monodominant and xerophyte plant communities’constructive species are more polydominant. The floristic elements show the temperate zone and mongolia geographical region, but the advantage is not obvious. Outward from the lakeside, the vegetation showed a feature of "longitudinal zonation and horizontal partition" pattern. Based on the moisture conditions and the vegetation types, the lakeside can be divided into three different landscape areas:the mid-humid areas which located in the central of the south shore, the northwest depression of the lake and the river estuary of the Nugesi in the Southwest; The xerophytes zone located in the north and east shores of the Lake; the extremely xerophytes area located in the south and the southeast shore of the lake. The seven dominant species was overall correlation significant negative and the21spices-pairs were also mainly negative correlation, interactions between different species was weak which indicated that the vegetation of the area is in the early stages of succession, and the environment of community was less stable.In addition, the effectiveness of some ecological restoration measures including vegetable planting and wind-breaking barriers were investigated and assessed. Among the7introduced herbage plants, Suaeda glauca was the only plant which successfully established in the salty and alkali lake basin. Among the5tested woody plants, Nitraria sibirica showed the highest surviving rate. Both low and high standing wind-breaking barriers showed good results in that vegetation coverage and species diversity were obviously higher than that in the control areas. Wind proof and sand suppressing net also showed good results for vegetation recovery. Service life and layout direction of the wind-breaking barrier affected the effectiveness of the barrier. For the reason of the strong wind, the low horizontal sand barrier and grass checkered were less effective.