| Shenyang World Expo Garden was established in 2006.After 12 years of development,Shenyang World Expo Garden has become a new type botanical garden with proper layout,reasonable planning,rich connotation,neat appearance,and popular with many tourists.Shenyang World Expo Garden has embarked on the road of scientific research,popular science and tourism common development.Although the plant landscape of Shenyang World Expo Garden has made some achievements and progresses,it is still in the stage of development and improvement.Therefore,the reasonable evaluation of the plant landscape of Shenyang World Expo Garden is the basis of realizing the plant landscape value and ecological value of Shenyang World Expo Garden,and it is one of the preconditions for the comprehensive and correct evaluation of the tourism resources of Shenyang World Expo Garden.In this study,the plant landscape of Shenyang World Expo Garden was selected as the research object,according to the data from investigation,analysis of its basic characteristics,plant diversity index and the ornamental characteristics of vegetation index,using the analytic hierarchy process(AHP)to construct the appropriate evaluation system,build the yaahp index model for scores of each index.The analytic hierarchy process(AHP)was used to evaluate the plant landscape of Shenyang World Expo Garden from the angle of qualitative and quantitative.The research results showed that:(1)The plants in 57 sites of 19 exhibition gardens investigated and analyzed belong to 18 families and 42 genera,including 4 families of gymnosperms and 14 families of angiosperms.(2)The species richness,diversity,and evenness index of plant community trend consistent in 19 19 exhibition gardens.The Margalef richness index,Shannon-Winer index,Simpson index in Biaoben,Beijing,Xian,and Shenzhen garden were higher.It is shown that the plant landscape represented by these sites is rich in species,and it is easy to form a relatively stable plant community structure and a better ecological environment.(3)The study on the seasonal characteristics of plant landscape shows that the Biaoben garden,Ningxia garden and Xian garden had highest ornamental value,which can not only appreciate spring leaves,spring flowers,but also summer flowers,autumn leaves and autumn fruits.(4)The plant landscape of Shenyang World Expo Garden is comprehensively evaluated by the analytic hierarchy process,and the overall situation of plant landscape of Shenyang World Expo Garden is reflected according to the comprehensive evaluation index and landscape level.The weight value of the criterion layer is ranked from high to low as ecological function factor > landscape aesthetic function >recreation function > service function;The maximum weight value in the index layer is the stability of plant landscape community,which in turn is the adaptability of plant species,the diversity of plant species,and the harmony between plant and habitat.The AHP method combines quantitative evaluation with qualitative evaluation,which is of guiding significance to the construction of plant landscape in Shenyang World Expo Garden,and provides methods for plant landscape evaluation in World Expo Garden. |
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