长春市区沟渠考（Changchun City Ditch test）

长春市区沟渠考（Changchun City Ditch test） 长春市区沟渠考(Changchun City Ditch test) Changchun City Ditch test Two hundred years ago, Changchun was the largest town in the hundreds of square kilometers outside the wicker border and Yitong hexi. Within the last century, development and change have been slow and have not yet been able to shake off the features of the villages and towns. Since the beginning of this century, due to the railway construction, the situation has changed greatly. Early Kuanchengzi (Changchun city) covers an area of less than four square kilometers. By the end of the last century, the rest of the land was still farmland and some barren land. In the past eighty years, the urban area has expanded by thirty times. It can not be said that urban sprawl is very fast. There is no big river near Changchun. The only Yitong River flows through the eastern part of the city is familiar to local residents. Yitong River has many tributaries in the urban area of Changchun, especially the tributary of the west side of Yitong River, several of which are located in the built-up area. However, due to the development of city construction, had engineered years of these ditches, now some paragraphs are not old, some have disappeared from the ground. As a result, it has become increasingly difficult to figure out what natural canals are. Now, according to the literature on urban development since the beginning of this century and maps drawn from different eras, the following sections are summarized: Toudaogou The river rises from Ren Jia Tun (now Bei'an Road, long Shen Railway East) on the east side, eastward across the Victory Park, then slightly off to the northeast, crossing the Changchun railway, into the Yitong River near Fort Hill group. Less than five kilometers Toudaogou, runoff is small, a few decades ago in the dry season is dry, the rainy season when the traffic is not stable. In 1906, Japan won the South Manchuria Railway from the hands of Russia, in the rivers north of the Changchun Mantetsu subsidiary, people use the attached land collectively as toudaogou. Since then, Toudaogou had two canals and lots of the concept. In 1919, the construction of Japanese Victory Park (formerly West Park), intercept the Toudaogou, for the park artificial lake. In the downstream of the river park, built several bridges, from the west to the East is the first bridge (now Beijing Avenue, near the intersection of Nanjing Avenue), two bridges (between east two street and Guiyang Street), three bridges (now East three street to Shanghai road and bridge between Japan (now) on the sea and victory Street intersection north, originally called the East inclined Street Bridge) and Changnong bridge (now East five street is the original Industrial Street near the intersection with long path). Among them, the Japanese bridge is the most famous, the bridge is relatively wide. Because the line it is located and affiliated commercial port, and even the Yuki traffic, so at that time is very important. This bridge is a wooden bridge, early 20s, before and after the change made some concrete bridges or bridges. The city drainage project Changchun the earliest, is a subsidiary of rainwater and sewage, are in Japan into the Toudaogou bridge downstream. The affiliated outside, there are two wooden bridge, a bridge is a town called Xingyun, Yancang bridge, by the time the administration -- Jihei discusses the luck Bureau building. The location is outside the south wall of the pseudo palace. The Hanten bridge, 30s was rebuilt, is a concrete bridge outside the palace is false. The beginning of 1935, the Toudaogou of the West (Stalin street to the East and the west of the road gradually underground). Is the natural ditch, into the underground culvert. Therefore, several bridges mentioned earlier are no longer bridges. After the liberation, a false front of the palace, also changed the culvert, so now only in the East and West ends Toudaogou visible remnants of the river. Two channel Toudaogou source originated in the north, in the vicinity of the railway is long Shen line. From the south-west to the northeast, flowing through Kaixuan Road bends to the Near East, into the Yitong River by Zhang Pantun, three, and quite regardless of Meng Jia Qiao Tu Zi tun. Full length than Toudaogou kilometers long. The south side of the ditch is not far away, Is the northern boundary of Manchuria Rail attached. In the northwest and north of the area, is affiliated to the Russian Middle East Railway, built in the Kuanchengzi station in the east. In the Changchun north station, two road ditch South Manchuria Railway accessorily dug four tap water wells in 10s, this is one of the city's water supply engineering early. Seventy years ago, two bridges on the less formal bridge is just north of five pass (now Industrial Street) north of the bridge is the only way which must be passed to the farmers, the farmers. The two channel is built through the park after the liberation of the north. Toudaogou and two channel channel are relatively simple, no obvious tributary ditches. Cucumber ditch The cucumber gully is a small river that flows through the center of the city. The mainstream originated from cucumber Gou Tun (Xi'an bridge southeast) in the southeast, flowing through the original mountain park, the children's Park, along the road near the people now, Yong'an Xinglonggou confluence in Nanling and then into the street, Yi tonghe. The other tributary, which originates near the geological palace and flows through the peony Park (now on the north side of the Jilin University campus), joins the main stream at Stalin Avenue East (West Park of the children's Park). The upper reaches of the cucumber ditch, there are cucumber ditch and front and back cucumber ditch and other villages. Dirty after five (also called Hu Tun Tun Wuhu) and Zhu Da tun. In the northern section of the geological palace, there is a Xinghuacun in the upper reaches of the northern section of the geological palace. It is the scenic spot of Changchun city since this century until 30s. There are not many rivers left now, but most of them have been underground except for some parks. Among them, along the road is public health, after the liberation in order to improve the urban environmental sanitation and city traffic and the construction of culverts. Now, the north of the geological palace, the city flower company, the water in the courtyard and the artificial lake in the children's Park, the original water sources are from the mainstream of the cucumber ditch. Prosperous gully This is the largest one in the south ditch, and the runoff in the catchment area are relatively large. The mainstream originates from the northeast of the watershed, and the other tributaries originate from the happy ridge and the back prosperous ditch. These tributaries converge near the workers' and peasants' road, from the southwest to the northeast. In 1937, at the confluence point near the dam along the southwest side of road workers and peasants, the interception after the formation of today's Lake, artificially built more than 100 hectares of water, used to built the city's largest park -- South Lake Park. Prosperous ditch from the South Lake dam flows through the current Zoo Park, and the tiger ditch confluence, continue to flow northeast and converge cucumber ditch into the Yitong river. Xinglonggou, cucumber and tiger ditch ditch concourse, until a section of the Yitong River, formerly also known as the West river. Tiger gully Originated in the tiger ditch Tuen (now Liberation Road, near the long Shen Railway West) on the eastern side, from northwest to East, south direction, through the original Xinmin Park into the zoo, into the thriving ditch. Now, the water in the park in the Chaoyang Park (formerly known as Xinmin Park) is blocked by the water from the tiger gully. Now Stalin Avenue on the west side of the green, has been occupied, part into the culvert, the river is invisible. Only the park remains part of the original landscape. After more than half a century of urban construction and development, the natural outlook has changed greatly. From the natural rivers, has evolved into the city drainage channel and culvert. The original river was cut straight and turned underground. Now it's impossible to look at the natural river one hundred years ago. (collection, use, office, Changchun, place names)