| In this paper,a series of quantitative analysis methods are used to study the spatial morphological characteristics,landscape aesthetics characteristics,structural characteristics and landscape pattern characteristic of Qingyan ancient town,reveals the basic characteristics of the spatial morphology of Qingyan ancient town,obtains the main factors of the spatial morphological structure of Qingyan ancient town,and put forward the development strategy of the spatial morphological structure of Qingyan ancient town.The study enriches the research field of Qingyan ancient town and excavates the cultural connotation and historical context of Qingyan ancient town,which provides the theoretical basis for the construction,protection,renewal and development of the ancient town,and provides theoretical reference for the tourism development of other ancient towns.The results are as follows:(1)The research results of spatial morphological features of Qingyan ancient town are as follows:(1)The sequence of the lacunarity index of he mountain area was: mountain area2(59.890)>mountain area1(11.055)>mountain area3(6.241),The sequence of the lacunarity index of the street area was: street area3(3.42)>street area2(2.636)>street area1(2.534)>street area4(2.420.(2)The analysis of the boundary space image showed that: the lacunarity index of north gate facade was 1.500;the lacunarity index of the vertical wall was 1.183.(3)The analysis of the image shape of the marker space showed that:the lacunarity index of zhao fu scholar was hightest,,the lacunarity index of the Catholic church,ethical fang zhao,the Christian church and Wanshou Palace was lower,and the numerical difference between them was not great.(4)In the analysis of spatial morphological image of the nodes,the lacunarity index of Dingguangmen was 1.157,and the small square plane's was 1.045.(5)The analysis of the characteristics of the street space shape imagery showed that the lacunarity index of the two facades of the same street were similar,indicating that the two sides of the building on both sides of the building space aggregation degree was more consistent;the lacunarity index of West Street facade was the lowest,and below North Street facade and South Street facade,while the north street facade was not much different from that of the south street.(2)the research results of spatial morphological aesthetics in qingyan ancient town were as follows:(1)The mean value of SBE in the core area was 13.70,-9.75 in the transition zone,-0.48 in the outer area.The correlation of SBE between the core area and the transition zone was significant(p=0.043<0.05),the difference of SBE between the core area and the transition zone was significant.(2)The mean value of SBE of the 14 non-road landscape was-13.97.(3)The mean value of SBE of the north and south streets was 12.01,the landscape quality of the north and south streets was the highest relative to other places,while the landscape aesthetic quality was the lowest in the street landscape.(4)The mean value of SBE of 47 scenic spots within the wall was-0.20,The mean value of SBE of the landscape outside the wall was-2.09.The landscape aesthetic quality inside the wall was better than ouside.(5)The mean value of SBE of“individual buildings”was-22.94;The mean value of SBE of “street” was 3.81,The mean value of SBE of“other” was 5.07;the mean value of SBE of“structures” was 2.77.The p value of "single building" and "street" was 0.058,which was close to significant value of 0.05,and its correlation was significant.(3)The research result of Qingyan ancient town:(1)north-south street and the east-west street of Qingyan ancient town was the highest location about the integration than the other alleyway street,valedictorian street,the academy street and the oil-press lane.Besides,the north-south street was better than east-west street.Which meaned that Qingyan ancient town Space network has clear integration degree centre,represented the "cross" style layout.The connection value of north-south street and the east-west street were higher than the rest of other areas in Qingyan ancient town,which meaned that the farther away from the center of the intersection,the lower the connection value.The north-south street and east street in the ancient town were the lowest area about the depth value,the highest section of the depth value was located in the northern part of the ancient town.Which meaned that the farther away from the main traffic road,the higher about the depth value.And the closer from the main traffic road,the smaller about the depth value.In Qingyan ancient town,the Control value of the north-south street and the east-west street were higher,but the northwest street was lower,which meaned the north-south street and the east-west street had a strong controlling effection the space morphology structure of ancient town.(2)The results of Control value analysis showed that the north-south street and the east-west street were higher,but the northwest street was lower,which meaned the north-south street and the east-west street had a strong controlling effection the space morphology structure of ancient town(3)The analysis of street-net density in Qingyan ancient town showed that the intersection of north-south street and east-west street was the most than others Radiate outward from the center of "cross".The density of the street-net was getting smaller,which showed that the "cross" corner was the "key block" of ancient town.(4)The results of space richness analysis of Qingyan ancient town showed that When N was equal to 5,the square of R was equal to 0.54,the result indicated that the fitting degree was better.When N was equal to 8,the square of R was equal to 0.69,which was closer to 0.7,the fitting degree was so well.The results showed that the area of Qingyan ancient town was diverse and rich.(4)The research result of spatial morphological characteristics of landscape pattern features of Qingyan Ancient Town:(1)The fractal dimension of various types of landscape in Qingyan town was as follows: road landscape = 1.57> wall landscape = 1.30> architectural landscape = 1.11> farmland landscape = 1.05> water landscape = mountain landscape = 1.03> green landscape = 1.01.The fractal dimension of each type of landscape was large,which indicateed that the ancient town had more interference,the impact of human factors on the landscape was more obvious.(2)In the landscape diversity analysis,the landscape diversity index H(1.392)in the town of Qingyan was lower,and the difference between the value and the maximum diversity index Hmax(1.946)was larger.The landscape dominance index of Qingyan town was 0.554,and its value was higher,which indicateed that the imbalance of all kinds of landscape development in Qingyan town;The landscape evenness index of Qingyan town was 0.567,and its value was low,which showed the imbalance of the development of various types of landscapes in Qingyan town.(3)Qingyan town patch density index of 11.695,this showed that the number of patches of the overall landscape of Qingyan town was more dense,the patches were more intensive,but the gap between the various types of landscape patches was large,also showed the uneven development of the town landscape.Qingyan ancient town of various types of landscape plaque density index order: green landscape> water landscape> farmland landscape> architectural landscape> mountain landscape> road landscape> wall landscape.Qingyan ancient town of landscape fragmentation index was low,its value was 0.005,which showed that the town of Qingyan landscape during the study of the degree of fragmentation was not high.Qingyan ancient town of various types of landscape landscape separation index sort: water landscape> farmland landscape> green landscape> road landscape> wall landscape> mountain landscape> architectural landscape.The number of plots of water landscape was only 1,and the high resolution index indicated that the patches were small and narrow in shape. |
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