Investigation On Submerged Plants Resources In Guizhou Province And Its Application In Landscape Architecture

Nowadays,the water pollution of China is serious and the water ecological environment improvement is imminent.The submerged plants played a key role in the ecological restoration due to its special ecological niche and water purification function in the ecosystem.In this paper,the submerged plants resources of Guizhou province were taken as the research object to study the distribution of submerged macrophytes resources and its growth status and living environment;and the landscape characteristics such as the ornamental value in the garden were analyzed;and in the composition of the natural community,the relatively suitable plants combination pattern of submerged was extracted and used.Providing some theoretical and practical guidance for the future application of garden plants in the application of submerged plants,the results are as follows:(1)A total of 8 families,11 genera,31 species and 1 variety,obtained from the literature statistics and field investigation of Guizhou submerged plants resources,such as Potamogetonaceae,Hydrocharitaceae,Najadaceae,Zannichelliaceae,Haloragidaceae,Lentibulariaceae,Ceratophyllaceae,Podostemaceae.Among them,the proportion of Potamogetonaceae plants accounted for 34.37%,followed by Hydrocharitaceae plants,accounting for 28.12%.In Guizhou Province,the surveyed submerged plants have 7 families,9 genera,21 species and 1 variety.(2)The survey results showed that the foliage type plants accounted for 40.7%,the conspicuous type plants accounted for 18.8%,the foliage and flower type plants accounted for 37.5%and 3% of the other plants.Most of the submerged plants had a long ornamental period and a high ornamental value.Combined with the survey data,the comparison and analysis of the ornamental types of submerged macrophytes could fully exploit the value and prospect of submerged plants in garden ornamental,and lay the foundation for further aquatic plants.(3)The submerged macrophytes of the surveyed plots were analyzed,and concluded that the submerged plants single community were 11 species,complex community were 6 species,associated communities were 5 species.In the garden application,submerged plants combined with water plants,floating plants,wet plants,floating leaf plants to be configured,and on this basis,6 species of aquatic plant communities were simulated.The submerged plants underwater space position were used to landscaping application,increasing plant level,great to meet the diversity of ecosystems and organisms;improving water self-purification capacity and maintain water environment steady state,to avoid the development of algae water environment.