| Cycadaceae plants is a world-class endangered plants.Wild Cycas genus(Cycas)species is a national type I level key protected wild plants in China,with scientific research,ecological,economic and cultural aesthetic values.The cycad garden in Nanning Qing Xiu Shan Scenic Spot is a representative and typical cycad garden in China.Based on the theories of ecology,landscape aesthetics,botany and phytocoenology,this paper investigates,analyzes and evaluates the landscape of cycad garden in Nanning Qing Xiu Shan Scenic Spot.From the aspects of plant landscape,landscape sketch and cultural landscape,this paper analyzes the existing problems in the landscape,and concludes with optimization suggestions.The main research results are as follows:(1)On the basis of reviewing literatures and consulting relevant experts,the landscape evaluation system of the cycad garden in Nanning Qing Xiu Shan Scenic Spot was constructed,in which plant landscape,landscape sketch facilities and cultural landscape were selected as the criteria,and 15 second-level indicators were selected.(2)Weight value is calculated by using the analytic hierarchy process.The weight values of evaluation index of the criterion layer have an order of plant landscape(0.6608),cultural landscape(0.2081),landscape sketch and facilities(0.1311).In the index layer,the weight values of plant landscape evaluation index have an order of plant species diversity(0.2866),plant landscape ecological effect(0.2262),plant growth status and adaptability(0.2103),plant configuration mode(0.1106),plant ornamental characteristics(0.0636),plant seasonal change(0.0540),level richness(0.0488).The weight values of cultural landscape evaluation index have an order of richness of cultural connotation(0.6586),regional characteristics(0.1852)and expression form of cultural landscape(0.1562).The weight values of landscape sketch and facilities evaluation index are in the order of guide map and clear sign(0.3354),architectural sketch aesthetic(0.2756),service facility sketch configuration(0.1926),pavement aesthetic(0.1241),landscape facility safety(0.0722).It can be seen that plant species diversity,plant landscape ecological effect,plant growth status and adaptability,cultural connotation richness,guide map and clear sign,and architectural aesthetics are the six elements that should be considered with priority in the landscape evaluation of cycad garden(3)The established landscape evaluation index system of the cycad garden in Nanning Qing Xiu Shan Scenic Spot was used for the design of the questionnaire survey.The qualitative index quantitative research of landscape evaluation was conducted through the methods of questionnaire survey and interview,so as to evaluate the landscape conditions from the perspective of users.(4)Through inductive analysis,problems in the landscape of the cycad garden in Nanning Qing Xiu Shan Scenic Spot were pointed out and optimization suggestions were given.It also provides reference basis for the construction,promotion and transformation of cycad garden in Nanning Qing Xiu Shan Scenic Spot and other cycad professional gardens at home and abroad. |
