Research On The Formation Mechanism Of Plant Landscaping And Characteristic Plant Landscapes In Traditional Tujia Villages In Tongren City

In this paper,the plant landscapes in six Tujia traditional villages in tongren city are taken as the research objects,and the spatial distribution characteristics,spatial morphological structure characteristics,plant landscape species diversity and stability characteristics,and plant landscape aesthetic characteristics of Tujia traditional villages in tongren city are comprehensively studied.The main types of reference models of characteristic plant landscapes,traditional village plant landscaping theories,and plant landscape protection and development strategies are summarized,which achieve the expected purpose and provide reference theory and practical guidance for better protecting the plant landscapes of Tujia traditional villages in tongren city.The research results are as follows:A total of 620 species of plants,belonging to 500 genera and 208 families,were recorded in the traditional Tujia villages in Tongren.According to the statistics of plant life forms,there are 131 species of trees,119 species of shrubs,334 species of herbs and37 species of vines.The flora has the characteristics of transition from Pan-tropics to North Temperate Zone.Floral plants play an important role in different plant ornamental parts.From the view of individual ornamental characteristics,the ornamental value of arbor was the highest,and that of vine was the lowest.The plant communities of traditional Tujia villages in Tongren were divided into 7vegetation types and 43 communities.The warm coniferous forest accounted for 29.9 %in 43 communities.The fractal dimension of each village is greater than 1.5,which indicates that the greenbelt landscape has fractal characteristics.The green landscape gap of each village is distributed in clusters,and the result of Tyson polygon is consistent with it.The landscape of each plant community is aggregated and distributed,the overall growth advantage is in the medium state,the degree of mixing difference is significant,and the growth vitality is low.With the increase of altitude,the individual competition index,growth vitality and stability of plants all decreased.The species richness of the whole plant community was higher,and the species richness index of herb layer was higher than that of tree layer and shrub layer.The stability of each plant community was low.Landscape beauty degree of different plant communities was the highest in river and farmland.The relationship between landscape beauty of community plants and fractal dimension,gap degree and competition index was significant.There are 5 first-level and 26 second-level plant landscape indicators in the comprehensive evaluation of traditional Tujia villages in Tongren.The ecological environment,folk culture and its second-level indicators are the main influencing factors of the plant landscape of traditional Tujia villages in Tongren.The average comprehensive score of ancient tree type plant landscape was the highest,followed by sacrificial ceremony,river channel,water mouth forest and forest,and the comprehensive score of fruit forest type plant landscape was the lowest.From high to low,the comprehensive evaluation of plant landscape in the six villages were Tuanlong Village,Yunshe Village,Qugou Village,Haojiawan Village,Furong Village and Daxi Village.Through threshold screening,26 reference models of main types of characteristic plant landscapes were obtained.The main factors affecting the characteristic plant landscape of Tujia traditional villages in Tongren are natural factors,human factors,economic factors and social factors.The formation mechanism of characteristic plant landscape of Tujia traditional villages in Tongren is the interaction of local natural factors and human factors,the internal expansion of natural factors and the external space restriction of human factors.The plant landscape principles,principles,elements and artistic techniques embodied in the plant landscape of traditional Tujia villages in Tongren are summarized and summarized,and the theoretical thoughts of characteristic plant landscape of traditional Tujia villages in Tongren are preliminarily obtained,providing reference for the plant landscape of traditional villages.For research in the field including found the problems in traditional tujia village,respectively from the stability of plant landscape diversity to regional culture,plant landscape,karst environment is fomous trees and plants landscape protection and development put forward including traditional tujia village characteristics of plant landscape protection and development strategies.