Qingguo Lane is a Gu Xiang built by the river in the center of Changzhou, which was built in the Wanli period of the Ming Dynasty. At that time, the Beijing-Hangzhou Grand Canal entered Xishuiguan from Wenheng Bridge, passed through the East-West Xiatang, passed through the city and wound eastward from Dongshuiguan. It is said that during the Qianlong period of Qing Dynasty, Qingguo Lane became a distribution center for all kinds of fruits from south to north because of its canal, so it was named "Qianguo Lane", also known as "Qingguo Lane". "Changzhou Fu" says: "When you enter the lane of thousands of fruits, peaches, plums, plums and colors are all Chen." After the canal was diverted, the name of the lane remains to this day. The historical and cultural connotation of Qingguo Lane is extremely rich. For hundreds of years, talents have come forth in large numbers because of its "scholarly fragrance and fragrance of the Mohe River". According to incomplete statistics, there are more than 1 Jinshi coming out of Qingguo Lane, many of whom have won the honors of "No.1 scholar" and "biography", and the official ranks among the top two titles. In modern times, many famous people emerged, such as Sheng Xuanhuai, Qu Qiubai, Zhao Yuanren and Zhou Youguang. There are many celebrities' former residences, temples, theaters, bridges, steles and ancient wells in Qingguo Lane. Up to now, there are nearly 2 former residences of celebrities, such as the former residences of Tang Jingchuan, Li Boyuan, Sheng Xuanhuai and Zhao Yuanren. The historical origin, humanistic connotation and classical architecture of Qingguo Lane are not only unique in Changzhou, but also rare in Jiangsu Province, and its historical and cultural value is immeasurable.

Second, the problems caused by Changzhou's economic prosperity

(1) The economy has developed at a high speed for more than 3 years. Changzhou, known as "China and Wu are complementary, and eight cities are famous", has taken advantage of the huge location advantage of the central city in the Yangtze River Delta region, persisted in taking reform and opening up and scientific and technological innovation as the driving force, developed the economy and improved people's livelihood as the main line, and focused on economic work and major project construction through industrialization, urbanization and modernization, and constantly optimized it. Efforts have been made to lay a solid foundation for development. On the basis of total breakthrough, the city's national economy has achieved a leap in quality and industrial upgrading on the basis of structural adjustment. The overall development level and quality have been steadily improved, the material foundation has been continuously enhanced, and the comprehensive strength has been significantly improved, which has occupied an important position in the development of Jiangsu's national economy. (See Table 1) We can easily see from Table 1 that during the Eleventh Five-Year Plan period, Changzhou's GDP doubled and the per capita GDP level also improved greatly. As of 212, the GDP growth rate of Changzhou has exceeded 1% in recent years, which is ahead of the national development level in the same period. (2) The protection of historical buildings is imminent. With the changes of the times and the vicissitudes of history, only ordinary people in Changzhou now live in Qingguo Lane. We can only recall the past scene that "the green fruit is not ripe, but the aroma of Qiu Lai is full of fragrance". In such a busy city, Qingguo Lane is an incredible place, surrounded by rows of high-rise buildings, just like a paradise. This is a typical building of Jiangnan water town. Small bridges, flowing water and mossy stone roads all tell its history. In the 198s, Qingguo Lane was able to maintain its original appearance, and the buildings everywhere exuded the charm of Jiangnan Water Town. As early as 1987, it was announced by the Changzhou Municipal Government as a historical and cultural protection zone in Changzhou. However, due to historical reasons, Qingguo Lane has not been completely protected and repaired. In recent ten years, with the acceleration of urban construction, many buildings around Qingguo Lane have been demolished and some original parts that are not in harmony with modern commercial streets have been demolished for the development of downtown South Street. Now it has been demolished or rebuilt many times, and now it is beyond recognition. Only its main block covers less than half of the original area. The momentum of the past has disappeared, and the protection work is imminent.

III. Discussion on whether there is a contradiction between economic development and historical buildings

So will economic development definitely have a negative impact on historical and cultural buildings? At present, there are two opinions in society: on the one hand, with the deepening of urbanization, the contradiction between urban construction and cultural heritage protection is extremely prominent. Many historical buildings are located in the center of the city, just as Qingguo Lane is in Changzhou. Under the pressure of huge demand for urban development space and increasing shortage of land supply, vicious incidents of demolishing historical buildings and developing real estate for short-term economic benefits have occurred from time to time, which has brought irreparable harm to cultural heritage protection, urban texture and personality characteristics. Feng Jicai, a famous scholar, also believes that the protection of historical heritage is under an unprecedented impact. In the face of such an impact, on the one hand, we should strengthen the consciousness of cultural protection in the whole society, on the other hand, we need various ideas, methods and experiences that are constantly improving to solve the practical problems of historical building protection. On the other hand, some scholars believe that the protection of historical and cultural cities and economic development are not contradictory, but can promote each other. This is not uncommon at home and abroad, and the smoke of World War II almost destroyed the whole of Britain. In the process of choosing the reconstruction method, the decision-makers of the city did not build another new city to replace it, but restored and recast it on the original site, which created immeasurable economic benefits for the future. The same is true of Lijiang in China, which accounts for nearly 5% of the service industry and generates more than 85% of the fiscal revenue. These are all due to its special city image and historical accumulation. This can also prove that the protection of historical and cultural buildings is valuable and will increase in value. As far as the problems in the protection process of Qingguo Lane are concerned, the following problems can be summarized: First, demolishing cultural relics and ancient buildings in disregard of relevant laws and regulations. Some units and developers are reckless, and even more, they report to the relevant departments after the cultural relics buildings are demolished. This kind of quick success and instant benefit over protection will cause permanent damage to ancient buildings. Secondly, the cooperation between departments is not enough, and the protection is difficult to implement. Some units either don't actively provide housing files, or refuse to pay the fees for the ancient cultural relic building in sign production under various excuses. The surrounding residents don't know that it is a cultural relic building, so they use it at will or even damage it, resulting in the basic protection of ancient buildings in name only. Finally, the repair method is improper. Some ancient cultural relics and buildings are occupied by schools and related enterprises, and many of these buildings have been transformed by users, with modern doors and windows, stairs and brick walls installed. These ancient buildings are unrecognizable, which puts economic benefits before social benefits and over-operates enterprises, resulting in the "four unlike" of protecting buildings.

iv. solutions from an economic perspective

from an economic perspective, the protection and cultural inheritance of qingguoxiang block should be a combination of goods and articles. From the perspective of architecture, its historical imprint and the effective use of developers can become high-value goods; In addition, from the perspective of cultural heritage and arts, it is also a public object for the public to pay tribute to. Therefore, we should fully consider its complexity when studying its costs and benefits. Judging from the current development situation of Qingguo Lane, firstly, developers will incur certain expenses in the process of obtaining the right to develop blocks; Then there is the cost of renovation and restoration in the short term; Finally, the cost of daily management and maintenance after completion. In the past, it was because of the high cost of repairing historical and cultural buildings that developers who only looked at short-term interests were discouraged. From the perspective of income, in addition to the daily rent, the commercial income of public places, and the future prosperity of regional real estate and commerce due to the high value of the block. But these benefits need more time to accumulate, so smart developers should have foresight. Therefore, how to balance the cost and income, and even realize income generation, should be the key to the solution.

(1) The corporate strategy of pursuing that "blue ocean" enterprise to surpass the traditional industry competition and create a new market is the "blue ocean strategy". The "blue ocean" here is not a field without competition, but a brand-new market field obtained through differentiation, where enterprises can obtain faster growth and higher profits by virtue of their innovative ability. The same is true when it comes to the protection of historical and cultural buildings. How to find the unique beauty of the block in the protection and develop it is very important. As mentioned above, a short Qingguo Lane has produced so many famous people at home and abroad, including patriotic industrialist Liu Guojun, Tang Jingchuan, one of the "Three Great Masters of Jiajing", and Zhou Youguang, the modern linguist "the father of Pinyin", and so on, which can be called a celebrity lane. Among them, the celebrity culture and humanistic atmosphere should be the unique beauty of this block and must be highlighted. Therefore, three cultural axes can be formed on the basis of the original building: the axis to show the traditional culture of Qingguo Lane, to restore the former residences of the Ming and Qing Dynasties with eight houses of the Tang Dynasty as the main body, to highlight the characteristics of the juxtaposition of courtyards in the north and south of Qingguo Lane, and to organically integrate celebrity culture, traditional business and folk culture on this basis to show the long-standing traditional culture of Qingguo Lane; The scenic tour axis of the ancient canal, with the theme of canal culture, restores the natural form of Nanshi River and the ancient buildings, ports and bridges on both sides, organically combines with the tour planning of the ancient canal, and shows the scenic scene of the ancient canal with scattered water and white walls and tiles. Tianjing Lane Ancient Street Experience Axis, with the theme of exploring secluded places in Gu Xiang, restores and darns the original texture of streets and lanes, organically links Tianjing Lane with surrounding streets and lanes, and forms criss-crossing streets and lanes extending in all directions, forming a representative street and lane experience space of Changzhou Ancient City.

(2) It is necessary to grasp the "degree" in order to achieve a high degree of harmony between urban economic development and cultural protection. Among them, "Kuanzhai Lane" in Chengdu is a successful model. As a brand-new "business card" of Chengdu's cultural tourism and a "living fossil" of Chengdu, Kuanzhai Lane has successfully avoided the unusual migration of residents similar to that in Old Town of Lijiang, Yunnan Province, and has not lost the historical authenticity and living life of the block, completely retaining the last remains of the urban pattern of "a thousand years less cities" and the original architectural pattern of a hundred years in old Chengdu, and at the same time incorporating fashion elements, showing its diverse heartfelt charm. There are nearly 5 building communities in the core area of the alley, which are composed of quadrangles, garden buildings, house-style boutique hotels and other unique building communities, and the scale is relatively low and concentrated. At present, a large number of famous domestic and foreign merchants have settled in Kuanzhai Lane, and many cultural celebrities have also settled in. In 28, Louis Vuitton held a Louis Vuitton classic car parade in Chengdu. As the first stop in China, Kuanzhai Lane officially entered the world's vision. The marketing model of increasing its influence through linkage with international first-line brand activities is worth learning. Applying this model flexibly to the renovation and development of Qingguoxiang block, the existence of aborigines adds a lot of life breath and realism. In addition, creative fairs, theme activities, the second class of history education and so on not only protect and publicize architecture and culture, but also promote the development of regional economy, killing two birds with one stone. We should be alert to the problems such as "holiday economy", "cloning" of development mode, similar tourism resources, and fake antiques usurping the host's role, which often occur in the development of ancient towns in China. We should always put cultural and social benefits first.

the general trend of China's economic development is irreversible. With everyone applauding the bullish economic situation, we must not ignore the ancient buildings and blocks that have stood for hundreds of years in the city. They tell immortal legends and inherit the fine traditions of our ancestors. Professor Ruan Yisan, the guardian of the ancient city, once said, What is the charm of our city? Besides wearing the same cement and steel coat, how many memories can you relive? It doesn't matter if you throw away your clothes. If you throw away valuable ancient buildings, you will throw away your mother-in-law bridge. Therefore, in this era of giving priority to economic benefits, we must appeal to all sectors of society to take action so that the protection of historical and cultural buildings and economic construction can develop in a coordinated and mutually beneficial way!

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