Stydies On Wetland Plant Diversity In Jiangxi And The Breeding Of Major Species

This paper is based on the field investigation and indoor study combining method, The main research on Jiangxi province wetland plant species diversity, life form, ecological habits,, biological characteristics, resource utilization, breeding characteristics of main kinds and so on, and on the basis edit the Jiangxi wetland higher plant catalogue.The study provide scientific basis for Jiangxi wetland conservation, sustainable use and the protection,planning and restoration of Poyang Lake.Through the collection and identification, total582wetland plant species (including varieties, cultivars and the following unit) had been recorded,and belonged to105families and283genera. Include2bryophyte species belonged to2families and2genera,8pteridophyta species belonged to7families and7genera,4gymnospermae species belonged to1families and4genera,568angiospermae species belonged to95families and270genera. Cyperaceae plants is the best families in Jiangxi wetland; followed by Poaceae, Asteraceae and polygonaceae. The national first grade protection of4kinds of wild plants:Isoetes sinensis Palmer, Glyptostrobus pensilis、 Metasequoia glyptostroboides and Brasenia schreberi, national second level protection wild plants have Ceratopteris thalictroides.The analysis showed that the Jiangxi wetland plant distribution area types are various, mainly to the pantropic distribution, followed by the world wide cloth and temperate elements. Wetland plants are divided into6life forms as trees, shrubs, herbaceous perennials, annuals, woody vines and herbaceous vines, and3ecological habits as Hygrophilous, marsh,and aquatic, the herbal form most in the life form and ecological types mainly to wet.The wetlands in Jiangxi province are divided into eight habitat types as lakes, rivers, streams, marshes, ponds, paddy fields,eservoir and valley stream. Various habitat type breeding a variety of wetland plants. Biological habit analysis showed that different types of wetland plants in different depth of adaptability, and have rich color that divided into white, yellow, red, purple and brown.The phenological period is apparent.the research of propagation characteristics find the best mode of reproduction of Lythrum salicaria L.and Typha orientalis Presl. and the wetland plant breeding mode, it showed that abundant wetland plants through asexual reproduction to reproduction.