Study On Plant Landscape And Formation Mechanism Of Characteristic Plant Landscape In Traditional Karst Villages Of Zunyi

In order to reveal the composition characteristics of landscape plants in traditional karst villages and master the characteristic plant resources of traditional karst villages,this paper takes the landscape plants in traditional karst villages in Zunyi as the research object,adopts the methods of literature review,community survey and related quantitative and qualitative research methods,carries out field research,and determines the name of plant resources in traditional karst villages in Zunyi Based on the SBE method and comprehensive evaluation method,the paper evaluates the landscape plants of traditional karst villages in Zunyi,obtains the characteristics of landscape plants resources,reveals the characteristics of landscape plants resources,and obtains the basis of plant landscaping Based on this theory,the characteristic plant landscape model and its formation mechanism are evaluated and screened,and the characteristic plant landscape inheritance theory is put forward,which aims to provide a theoretical basis for the planning and design of karst traditional village garden plant landscape,The main research results are as follows:(1)a total of 630 species of plants belonging to 158 families and 483 genera were recorded in the traditional villages of Karst,Zunyi.The ratios of trees,shrubs,herbs and lianas were about 2:4:6:1.The evergreen and deciduous trees were 97 and 116 species respectively,and one or two year old herbs and perennial herbs were 100 and 229 species,respectively.There are 163 species of plants in the selected area,which have five functions: medicinal function,economic function,ornamental function,edible function and soil and water conservation function.There are 15 distribution types of plants in the selected area,with pantropic elements as the main component,followed by north temperate distribution and world distribution.The natural plant communities are divided into 5 vegetation types,including 10 formations and 97 associations.It reflects that the plant landscape resources in Zunyi karst traditional villages are rich in species,diverse in function,complex in geographical composition and diverse in plant group composition.(2)The results show that the fractal dimension of green space contour of the six sample villages in the selected area is greater than 1.7,the complexity of landscape pattern of green space is high,and the plane type of villages is aggregation type;the plane structure of arbor is complex,followed by shrub in the typical plant community landscape of each village;the spatial isolation degree of tree species in the plant community landscape of the sample villages is high,the composition of tree species is complex,and the spatial distribution of trees in the sample site is relatively small The results show that the distribution pattern shows a trend of aggregation,the overall growth advantage of trees is medium,the forest competition in the sample plot is fierce,and the community structure is relatively stable;the plant richness of traditional karst villages in Zunyi is high,and the diversity level of herbs is the highest,followed by shrubs,and trees are the lowest.The results show that the overall stability of each plant community is relatively low;the mean value of beauty of 12 typical plant landscape types is quite different,and the beauty from high to low is tea garden,vegetable field,square,ancient well,river,sacrifice,house side,courtyard,road,forest,farmland and fruit forest;the beauty is significantly positively correlated with fractal dimension value,significantly negatively correlated with gap index,and greatly correlated with spatial structure index There is no obvious relationship between the small ratio and the angle scale,but a positive correlation between the small ratio and the mingling degree and the beauty degree.(3)Based on the current situation of plant community landscape in Zunyi karst traditional villages and following the principles of "serving the world" and "using local materials",this paper summarizes the concept and principle,basis and principle,spirit and humanistic connotation,element content and technique,and artistic effect of plant landscape in Zunyi karst traditional villages,The theory of plant landscaping in Zunyi karst traditional villages is preliminarily obtained.(4)The comprehensive evaluation results of the characteristic plant landscape of traditional karst villages in Zunyi show that the ecological benefits should be paid attention to in the evaluation process,followed by economic benefits,social benefits and aesthetic values.According to the comprehensive evaluation results of 50 plant community samples of 12 types in the selected area,48 plant community landscape configuration modes are summarized,which can provide a reasonable plant landscape configuration mode for the plant landscape design of traditional karst villages.Its formation mechanism is: in a specific space,human or natural activities form one or another influencing factors,these factors interact with each other,jointly promote the development of the ecosystem to a new state,and produce the direct consequences,one by one,the formation of characteristic plant landscape,natural factors and human factors exist and evolve at the same time,they continue to interact with each other,and constantly produce New characteristic plant landscape.(5)The inheritance strategies of characteristic plant landscape in Karst traditional villages are as follows:(1)making use of local plant resources according to local conditions;(2)deeply excavating the potential plant culture in villages.(3)We should attach great importance to the control of rocky desertification in traditional karst villages,and make full use of karst habitat to create characteristic plant landscape.