Study On Plant Landscape Evaluation Of Coastal Wetlands In The Yellow River Delta

This paper takes the plant landscape of the coastal wetland in the Yellow River Delta as the research object,based on-the-spot research and the collection and collation of a large number of documents,combined with multi-disciplinary knowledge such as ecology,landscape aesthetics,environmental psychology and statistics,the selection of typical plant landscape samples of coastal wetland in the Yellow River Delta was comprehensively evaluated.Discussion on the pattern of Plant Landscape allocation suitable for Coastal Wetlands in the Yellow River Delta,it provides reference for the construction of plant landscape in coastal wetland in the future.The main contents and results of the study include:1.The related concepts of coastal wetland,plant landscape evaluation and related research trends at home and abroad were summarized.2.Survey on the Yellow River Delta region,combined with the collection of relevant data,summarize its regional natural conditions and wetland survey.3.Using typical plot method,in the five wetlands of the Yellow River Delta,the landscape of six typical plants in the Yellow River Delta,including garden road,landscape stone,sketch,rest activity area,bank barge and water body,has been selected and a total of 21 sample plots have been selected.Collated and summarized the results:(1)In the selected plots,there are 58 species of plants belonging to 43 genera,29 families,including 7 alien species,51 native species,40 salt-tolerant plants,49 terrestrial plants,9 wet plants and 6 aquatic plants.(2)The landscape configuration patterns of plant communities in the sample plot are diverse.47.6% of the total plots in which the density of the community was more than 50%,42.9% of the total plot was covered by more than 50% of herbaceous plants.It covers fourtypes of vertical structures.Arbor-shrub-grass plant community accounted for 47.6% of the total sample plot;Arbor-irrigation plant community accounted for 14.3% of the total sample plot;Arbor-grass plant community accounted for 19% of the total sample plot;irrigation-grass type plant community accounted for 9.5% of the total sample plot.(3)In the plant landscape community of the sample plot,the main ornamental plants are flowers and leaves.Spring,summer,autumn three seasons as the main flowering season.Including evergreen trees,deciduous trees,evergreen shrubs,deciduous shrubs,lianas,herbs and aquatic plants of 7 life forms,among which deciduous trees are the majority,followed by deciduous shrubs and herbs,lianas are the least,only one species.4.According to the actual investigation and relevant literature reading and analysis,as well as expert consultation,determine the relevant quantitative evaluation indicators.The AHP-fuzzy comprehensive evaluation method was used to evaluate the comprehensive quality of the plant landscape samples selected from the coastal wetland in the Yellow River Delta.Calculated the weight value of evaluation factor,it is concluded that the order of the important factors affecting the beauty of plant landscape in the coastal wetland of the Yellow River Delta is ecological beauty > spatial beauty > artistic conception beauty > ornamental beauty.At the same time,the comprehensive evaluation system of the plant landscape in the coastal wetland of the Yellow River Delta was established,and the comprehensive quality of the plant landscape was evaluated.The results of the evaluation are as follows: The plant landscape quality level of the five coastal wetlands in the Yellow River Delta is grade Ⅱ,which indicates that the plant landscape quality of the five coastal wetlands in the Yellow River Delta is relatively stable.5.The evaluation results of plant landscape in the coastal wetland of the Yellow River Delta were compared and analyzed.The plant landscape quality and community structure characteristics of the coastal wetland in the Yellow River Delta were summarized,and on the basis of this,the construction model suitable for the plant landscape in the coastal area of the Yellow River Delta was put forward.In order to provide reference for the future construction of coastal wetland plant landscape.