Investigation, Selection And Application Of Flower Materials In The Sea Of ??flowers In The Eastern Part Of Heilongjiang Province

In recent years,Flower Sea has been widely used in landscape construction,especially the construction of beautiful countryside has achieved more remarkable landscape effect.However,Heilongjiang Province started relatively late,because of climate constraints,there are no more varieties of resources suitable for flower sea landscape,Even better varieties in other parts of China are difficult to be widely used in Heilongjiang area.How to screen more flower resources to enrich flower sea landscape is an important research topic.Through field investigation,data collection and literature review,this paper selects other flower materials used in flower sea garden and flower materials which have certain potential in flower sea construction.and then,the flower materials suitable for flower sea construction in the eastern part of Heilongjiang Province were selected according to the comparison of ecological environment and plant growth habits.Based on the combination of analytic hierarchy process(AHP)and absolute evaluation and selection method,the flower sea application value of selected flower materials was evaluated from three aspects: ornamental value,ecological adaptability and application potential.At the same time,the applicability of the flower material under different habitat conditions is discussed and the application of the habitat is recommended.Finally,taking the configuration design of a flower sea garden as an example,the flower simulation is applied to the flower sea landscape design.The main results are as follows:(1)There are fewer kinds of flowers in the eastern part of Heilongjiang Province,which can be divided into three categories: annual and biennial flowers,perennial flowers and bulbous flowers,with a total of 18 families,34 genera and 45 species.Among them,there are 17 species of Compositae,accounting for 47.8% of all flower plants.The flowering period of all kinds of flower sea materials is about the same,mostly concentrated in July-August.Yellow flowers and purple flowers were more than others,accounting for 12% each.The flower sea sightseeing park is more casual in the color matching of flowers.The use of flower varieties in the flower garden is repeated,and the homogenization is serious.lack of combination with woody flowering plants.(2)The comprehensive grade evaluation of 58 kinds of flowers was carried out by using analytic hierarchy process(AHP)and absolute evaluation and selection method.The results ofgrade evaluation were as follows.Grade I is the most valuable species in flower sea,with a total of 10 species,among which Zinnia elegans Jacq.is the most valuable flower.Grade ? is the higher species of Flower Sea Application value,with a total of 24.Grade III is the common species of Flower Sea Application value,with a total of 20 species.Grade ? is the species with lower applied value of Flower Sea,with a total of 4 species.Therefore,a total of 53 species of flower and plant materials adapted to the environmental characteristics of the eastern region of Heilongjiang Province were screened out,and the landscape effect was good,which was suitable for the planting of flowers and sea.(3)According to the above flower grade evaluation,according to the environmental characteristics of different sites and the landscape effects to be created,the application recommendations of flowers in different habitats are given from two aspects of environmental adaptability and landscape appreciation.It provides a reference for the landscape construction of flowers seas under different habitat conditions in different areas.The largest number of flower varieties can be used in open areas,with 38 species,accounting for 69.1% of all flowers.The second is 19 kinds of flowers that can be used as forest edge and sparse forest.There are 9 kinds of flowers that can be used in low-lying or waterfront sites,among which Lythrum salicaria L.is the most commonly used flower variety in low-lying areas.There are 9 kinds of flowers and 11 kinds of flowers that can be used in saline-alkali soil.(4)According to the selection and allocation mode recommended by habitat,the flower materials with high evaluation grade can be demonstrated by taking Jiamusi Dale Flower Sea as an example,and a better landscape effect can be formed.This study will provide scientific basis and important reference for the selection and application of flower materials in the eastern part of Heilongjiang Province.