Study On Investigation And Viewing Period Research Of Autumn And Winter Fruit Trees In Nanjing Botanical Garden Mem.Sun Yat-sen

In the landscape,plants are indispensable as the only material with vitality.Fruit plants are an important part of plant materials.In the course of a long history,it has gradually emerged.Fruit plants not only provides food to the abdomen,but also gives the plant different cultural and aesthetic experiences.Autumn and winter are the most ornamental fruit cycle.At this time,the plant is depressed and the world is simple.Landscaping is not as lush as in spring and summer.Therefore,it is of positive significance to conduct in-depth research on the characteristics of autumn and winter fruit plants.Through follow-up observation of the fruit plants of the Botanical Garden in autumn and winter,based on the ecology of vegetation,the characteristics,richness and similarity of the population of the sample were investigated,and the time sequence,ornamental cycle and community stability were analyzed.Under the premise of integrated landscape ecology theory and landscape architecture theory,quantitative research is conducted.In article,the Botanical Garden 8 area Arboretum,Medicinal Plants Garden,Plant Systemic Garden,Bulb and Perennial Garden,Herbarium,Rose Garden,Central Landscape and Red Maple Hillock were selected as the survey objects.Using point-quarter sampling methods to study 121 samples in eight regions.Through the analysis of research data found that:(1)Sun Yat-sen Botanical Garden is rich in plant species,and 179 plant species are counted in the sample sites,there are 75 kinds of fruit plants,accounting for 41.90%,38 family.There are 47 species of arborous and 28 species of shrubs.Rosaceae(10),holly(5),Lonicaceae(4),Polygonaceae(4),and Camellia(4)plants accounted for the largest percentage of fruit plant species.In the order of importance value,the top five arborous were Trachycarpus fortune(6.50),Celtis sinensis(5.19),ginkgo biloba(5.04),Ilex chinensis(4.03),Koelreuteria paniculata(4.02),and the top five shrubs were hydrangea(5.09),Ilex cornuta(4.80),Photinia serrulata(4.57),Osmanthus fragrans(3.47),and Viburnum dilatatum(2.97).(2)Sun Yat-sen Botanical Garden uses specialized garden to create landscapes.Regional community similarities are between 10%and 20%.The largest difference in community similarity is the rose garden and Arboretum,similarity is 10.98%.Smallest is Central landscape and Herbarium.Smilarity is 38.10%.In diversity of the community,data show that plants have a certain number of distributions,and individual species have higher uniformity.And generally higher than the urban green space indicators.Overall,the landscape is unique and the plant configuration is in line with the park theme.(3)Statistical analysis was conducted on the fruit cycle of 63 plant species.Best viewing period of 43 fruit species was in September and October,accounting for 68.25%.The top five plants in the ornamental cycle of fruiting plants are Koelreuteria bipinnata var.integrifoliola(175),Adina rubella(168),Cardenia jasminoidies(168),Sapium sebiferum(150),and Dendrobenthamia hongkongensis(147).The highest frequency of plants top five is Ilex chinensis(8)、Ilex cornuta(6)、Nandina domestica(5)、Rosa roxburghii(5)、ginkgo biloba(5)。The most common types of red fruit were 28 species,accounting for 43.07%,followed by brown and yellow.(4)Birds have a decisive significance in the long-distance transmission of fruit plants,The hard shell of plant fruit has experienced bird digestion,which is more conducive to the germination of seeds.It is of great significance to protect the conservation of fruit trees.Whether the fruit of the plant determines the number of resident birds,determines the migration time and location of migratory birds.Fruit plants are of great significance to ecological stability.Through the above research results,a fuzzy cognition of the autumn and winter fruit plants of Sun Yat-sen botanical garden was carried out.As a whole,the landscape features of the botanical garden are prominent,and the community species is rich,showing a good landscape effect.The results of this study hope to help the landscape construction.