Landscape Character Assessment On Nan'an Qionghai Rural Landscape

The landscape character assessment(LCA)of rural landscape plays a very important role in the improvement of rural landscape.It is a commonly used method in the study of rural landscape at home and abroad.With the transformation of rural production and life style and the great impact of urbanization on rural landscape,the rural landscape has appeared the problems of homogeneity,unity,deterioration of ecological environment and the disappearance of rural folk customs.In October 18,2017,comrade Xi Jinping put forward in the nineteen major report that "the problem of solving the problem of" three rural areas "must be the most important part of the work of the whole party,and the strategy of Rural Revitalization should be implemented,and it is pointed out that in 2050,the rural revitalization,the strong agriculture,the rural beauty and the rich and strong farmers have been fully realized.Objective and targeted investigation and evaluation of rural landscape environment is urgently needed to solve the problems faced by rural planning and construction.Landscape character assessment is an objective and accurate method in rural landscape evaluation at home and abroad,and has achieved remarkable results in the developed countries such as the UK.There are still shortcomings in the study of village landscape characteristics evaluation.By identifying and evaluating the small scale landscape characteristics of the rural landscape of Hainan Township on the southern bank of Qiong lake,Xichang,this paper makes a suggestion for the landscape improvement strategy and landscape management for different landscape features in order to provide reference and suggestions for the vast rural landscape construction.The main conclusions are as follows:(1)The rural landscape classification system of Hainan township is constructed.According to the related rural landscape research at home and abroad,and according to the actual characteristics of Hainan Township,according to the classification system of "landscape area landscape type landscape unit-landscape element",the rural landscape of Hainan township is divided into three types: natural landscape,semi natural landscape and artificial landscape.Hainan township as a whole belongs to the plateau mountain rural landscape area,which is further divided according to the principle of highlighting regional characteristics;natural landscape includes natural water landscape,natural woodland landscape,natural river landscape,natural wetland landscape,and so on;semi natural landscape including artificial woodland landscape,artificial wetland landscape,artificial landscape bag,etc.It includes settlement landscape,farmland landscape,garden landscape,road landscape and so on.Landscape elements are the further division of landscape units,such as dryland,pond,Tian Kan and other landscape elements.(2)Identify the features of rural landscape in Hainan township.Through indoor research and field investigation,we identify two types of landscape characteristics: natural landscape and cultural landscape.The natural landscape features include the natural cloud light,the forest mountain flower,the forest patch,the natural grassland and the bird habitat,etc.the humanistic landscape features include the layout of the "Fengshui",the traditional adobe house building group,the temple of the Ling Ying temple,the pharmacist temple and the ancient stage site,the big stone market,the first cylinder under the sky,and so on.And landscape characteristics and related legends,folk customs and other non-material characteristics.(3)Form the Hainan Township landscape feature zoning map.Select the features of topography,vegetation cover and other characteristics,use GIS technology and cluster analysis to obtain the preliminary distribution map of 5 landscape features in Hainan Township,and make a field investigation and investigation to modify the landscape characteristic boundary,and make a summary and summary to determine the landscape features of Hainan Township first grade,namely,settlement,pastoral,Lake Wetland and mountain.The characteristics of forest,river and barren landscape area,as well as 26 kinds of two level landscape characteristics,such as mountain gentle slope settlement,mountain gentle slope farmland,mountain steep slope woodland and so on.And select 8 descriptive indexes,such as land use mode,terrain feature,vegetation cover,farmland feature,settlement feature,visual feature and so on,and analyze the main landscape features of each landscape feature area.(4)Setting up a landscape character assessment system.The purpose of rural landscape improvement is to evaluate the landscape feature areas from four aspects of nature,regionality,sensitivity and environmental conditions,and select 24 evaluation indexes to form the comprehensive model of Hainan Township landscape feature evaluation,including vegetation cover characteristics,patch boundary type,landscape diversity index,topographic landform and geomorphology.Characteristics,patch density and other subjective and objective indicators are combined.Through the normalization of evaluation indicators and weighted processing of subjective and objective indicators,we get the final evaluation results.The results show that the regional score of the settlement landscape is higher,the environment of the settlement is poor,the sensitivity of the garden landscape is higher,the landscape environment and the region need to be improved;the lake wetland landscape area has better naturalness and regionality,the environmental conditions are higher,and the landscape view has strong natural,regional and regional characteristics.The sensitivity difference is small;the rivers and natural grassland area,slightly better,the whole landscape needs to be improved.(5)According to the results of LCA,the reasons for the formation of rural landscape and the trend of future development,the specific landscape feature promotion strategies for landscape feature areas are formulated to deal with the pressure of the future development of landscape,and to protect and maintain,strengthen and rebuild,restore and maintain various strategies and phases.And give suggestions for management.