Investigation And Evaluation Study On The Plant Landscape Of The Shuiyuanshan Park In Jiamusi City

This study takes the woody plant landscape of Shuiyuanshan Park in Jiamusi,Heilongjiang Province as the research object.A comprehensive survey was conducted on the plant landscape of 34 typical samples in 5 plant landscape areas by means of a combination method of census and sample survey.I analyze the species composition and diversity of the park plant landscape.AHP?the Analytic Hierarchy Process?and SBE?Scenic Beauty Estimation procedure?were used for the comprehensive evaluation and the study on the quality of plant landscapes 5functional areas.According to the results of the investigation,I summarize the ecological and landscape characteristics of the plants in Shuiyuanshan Park,and put forward the Suggestions for optimizing the adjusting.The main conclusions:?1?There are 64 species of woody plants in the sample,which belong to 23 families and44 genera.In 5 plant landscape areas,the most abundant plant species in Overlooking the Court area account for 46.88%of the park plant species.The Plant species in Tranquil Rest area and Front Square area account for 40.63%and 37.50%respectively,in Bird Park area account for25.00%,while in the sunny South area,account for the lowest percentage,it's only 17.19%.The highest proportion of evergreen trees planting is the South area,which reaches 1:3.188.It approaches the suitable quantitative proportion of evergreen trees and deciduous trees in northern area.But the proportion of evergreen trees in the other 4 plant landscape areas is obviously insufficient.?2?The Simpson diversity index of 5 plant landscape areas in Shuiyuanshan Park and Shannon-Wiener diversity index show a obviously consistent change.From Simpson,Shannon-Wiener diversity index and Margalef index,we found that species diversity and species richness are strikingly lower in Bird Park area and South area than in other areas.From the Pielou index,the lowest number is about 0.7 in the Bird park area,which indicates the obviously dominant species and the uneven plant distribution.There is a good species distribution uniformity in Front Square area with the index about 1.0.The low species richness index and low diversity index will affect the ecological nature and landscape of plant landscape.?3?I use AHP to evaluate five sections of plant landscape in the park landscape from three aspects:ecology,landscape and service.The quality level of plant landscape in Tranquil Rest area and Front Square area is grade?.It is grade?in Overlooking the Court area and Bird Park area.And in South area,it is grade III.To evaluate five areas of plant landscape of Shuiyuanshan Park in landscape,I use the method SBE.And the evaluation focuses on beauty and ornamental value.The results show:There is a linear relationship between the Y_SBE value of plant landscape and 8 elements,which are:life form constitution,plant configuration,botanical landscape composition art,ornamental value,species richness,plant landscape arrangement,plant growth,and density of trees.The landscape model of plant landscape is established after regression analysis:SBE=-11.036-15.298X1-15.784X2+25.107X3+4.052X4+14.454X5-14.183X6+19.711X7-6.544X8The results of plant landscap quality evaluation obtaining from AHP and SBE are highly consistent.The comprehensive evaluation reaults are:Tranquil Rest area>Front Square area>Overlooking the Court area>Bird Park area>South area?4?The life form proportion of plant landscape in this park is imbalanced.The variety and quantity of evergreen trees need to be improved.In order to further improve the quality of Shuiyuanshan Park plant landscape,it is suggested to introduce proper planting tree species which are suitable for local planting,enrich plant species of the green,strengthen the seasonal change of plant landscape and increase plant landscape arrangement.