Dazong Lake

Dazong Lake

Dazong Lake, the name of the lake, belongs to Lixia River system. Located in Yandu District, Yancheng City, Jiangsu Province and Xinghua District, Taizhou City, it is also known as Pinghu. It is one of the remnant lakes after the disintegration of the ancient Sheyang Lake. Dazong Lake, located in the hinterland of Lixiahe plain, is the most low-lying area in Yundong lake group. The lake is slightly elliptical in shape, covering an area of 21 square kilometers, of which the water area is 16 square kilometers

It belongs to type I freshwater lake of carbonate sodium group.

geographical position

Dazong Lake is located in the southwest of Yandu District of Yancheng City, 45 kilometers away from Yancheng City. Its geographical coordinates are 119 ° 43 ′ e to 119 ° 50 ′ N and 33 ° 7 ′ n to 33 ° 13 ′ n. It is connected with Binhu block of DAZONGHU town in Yandu District of Yancheng City in the East, beilonggang block of Louwang town in Yandu District of Yancheng City in the north, Shagou town of Xinghua City in Taizhou City in the west, and Zhongbao town of Xinghua City in Taizhou City in the south . Convenient transportation, Shuangxin Avenue high-grade highway direct, K5 air-conditioned bus also to the local, to play very convenient!

DAZONGHU tourist area is located in the hinterland of Lixiahe River in Suzhong, DAZONGHU town in Yandu District, 42 kilometers away from the urban area, with convenient transportation. Dazong Lake in the resort is the largest and deepest lake in Lixiahe area, known as the "water town". It is 9 kilometers long from east to west and 6 kilometers wide from north to south, covering an area of 30 square kilometers. The resort not only has a vast lake water, clear and transparent secondary water quality, well preserved ecological environment, four seasons pleasant climate and other good lake wetland ecological resources, but also has one of the "twenty four filial piety" Wang Xiang's sleeping place, the tomb of Chen Lin, one of the seven sons of Jian'an in the late Eastern Han Dynasty, the former residence of song Cao, a famous calligrapher in the late Ming and early Qing Dynasties, Yangzhou Zheng Banqiao, one of the "eight monsters", is a famous calligrapher and painter. Dazong Lake has been a famous scenic spot in Yancheng since ancient times, and its autumn color has been listed as one of the ten new sights in Yancheng. She attracts many tourists to visit with her tranquil artistic conception, tranquil and beautiful scenery and elegant charm. Dazong Lake Tourism Resort takes Dazong Lake water surface as the core, good ecological environment as the foundation, and rich Lixia lake culture as the foundation. It focuses on the development of characteristic tourism projects, further enriches the humanistic connotation and lake landscape, and constructs a collection of Lake sightseeing, leisure vacation, folk customs, ecological education, scientific research, etc. It is a multifunctional ecological tourist resort and a national "AAAA" tourist area. The development area of the first phase of the core zone is 3.5 square kilometers, which has been opened to the outside world in November this year. There are entrance square, aquatic customs, history and culture, Buddhist culture, reed labyrinth and other functional areas, forming eight landscapes: wetland ecology, night photo of Xinghu Lake, fishing fire of Jiangfeng, hidden beauty of Green Island, bell of Zen temple, shadow of lotus, wild geese in Ludang and qiongge Pavilion in Xiandao. Among them, reed labyrinth is the world's best, which has been declared as a Guinness record. .

natural resources

At the junction of Yandu District and Xinghua City, there is a rippling lake, which is Dazong Lake.

Dazong Lake covers an area of 21 square kilometers, including 16 square kilometers of water area

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Dazong Lake is a passing lake. Liyu River, Zhongyin River and Daxi River in the South and West are the main inflow channels, while mangshe River in the northeast is the main outflow channel. The lake basin is shallow and flat, and the terrain inclines slightly from northeast to southwest. The deep water area is located in the southwest of the lake. The annual average water depth is between 1.02 m and 1.5 m. The bottom of the lake is flat, hard, mostly chicken bone soil, with little silt. The lake water is clear, with fish, shrimp and aquatic plants. The natural food is rich, which is suitable for the growth of various aquatic animals and plants.

DAZONGHU town is named for its DAZONGHU lake, which is the largest and deepest lake in Lixiahe area of Central Jiangsu Province. It is known as "the land of water" and "the land of fish and rice". Dazong Lake, also known as Pinghu Lake and zonghu lake, was originally evolved from the ancient lagoon and formed about 800 years ago before the Southern Song Dynasty.

ecological environment

The lake is slightly oval in shape, with a water level of 1.42M, a length of 6km, a maximum width of 5.5km, an average width of 4.67km, an area of 28.02km2, a maximum water depth of 1.50M, an average water depth of 1.02M, and a storage capacity of 0.286 × 108m3.

The lake area has a north subtropical monsoon climate, with an average annual temperature of 14.3 ℃, 1.0 ℃ in January and 27.1 ℃ in July. The average annual precipitation is 1060 mm, accounting for 64.2% of the annual precipitation from June to September. The annual average sunshine duration is 2350h, the total radiation is 506500j / cm2, and the frost free period is 221 days. It mainly receives the water from the surrounding lakes such as Guozheng lake, Desheng lake and Wugong lake, and enters the lake through Daxi River in the west, Zhongyin River and Liyu River in the south. After storage, it is discharged from mangshe River in the northeast and Xingyan canal in the East, which is the main place for flood detention in Lixia River area. Floods are frequent and droughts are not uncommon. In 1954, the highest water level was 3.09M; in 1932, the lake was dry and dusty.

The transparency of the lake is 65cm, and the pH value is 8.4. The salinity is 351.16mg/l, the contents of cation Na +, Ca2 +, Mg2 +, K + are 36.23, 45.5, 14.25, 1.85mg/l respectively, and the contents of anion HCO3 -, Cl -, SO42 -, CO32 - are 159.81, 48.04, 38.23, 6.00mg/l respectively. DO2.62mg/L，TFe0.02mg/L，TN1.2mg/L，TP0.04mg/L，SiO23.22mg/L；NO3--N1.16mg/L，NO2--N0.04mg/L，PO43--P0.03mg/L。 It is a grassy lake.

The average dissolved oxygen is more than 5.5-7.5 mg / L. it is rich in calcium and trace elements, which is very suitable for the growth of crabs and other aquatic products.

Lake types

Dazong Lake belongs to the type I fresh water lake of sodium bicarbonate group.

fish

There are more than 60 species of fishes belonging to 22 families in Dazhong lake, mainly Cyprinidae. The main economic fishes are carp, crucian carp, bream, catfish, Siniperca chuatsi, black carp and yellow catfish. The lake also produces green shrimp, white shrimp and Macrobrachium rosenbergii. In addition to natural fishing, aquaculture production has developed rapidly. By the end of 1980s, the area of all kinds of aquaculture has reached 6.72 km2. Grass, Megalobrama amblycephala, silver carp, bighead carp, common carp, crucian carp and river crab are the main breeding species.

aquatic plant

The coverage rate of aquatic vegetation is 95%. Phragmites australis, Typha latifolia, Zizania latifolia, lotus root and rhombia are the main species in the coastal area; submerged plants are widespread in the open waters, and the main species are Vallisneria, Jucao, Potamogeton malayi, Hydrilla verticillata, etc. The lake is rich in snail and clam resources, with an average of 92 ind. / m2 and a biomass of 150 g / m2.

History and culture

The origin of Dazong Lake can be divided into two types: sink lake theory and lagoon theory.

According to Chenhu theory, Dazong Lake was originally a prosperous East Jincheng City, which was submerged due to a sudden subsidence. In 1929, the lake dried up due to the severe drought. Many cooking stoves, wall bricks, floor tiles, porcelain pots, jars, etc. were found. A broken flagpole, an ancient well, and the remains of the wall and streets were also found.

According to the research of the lagoon speaker, Dazong Lake evolved from a lagoon. After the first land formation, it was a beach. There were human activities. Later, because of the immersion of sea water, the sea water retreated to the East. Because of the low-lying terrain, it formed a lake more than 800 years ago.

Although Dazong Lake is remote. However, there are many celebrities in history, and the humanistic history and cultural connotation are also very rich.

Chen Lin

Chen Lin? Kong Zhang was born in Sheyang County in ancient times. He is one of the seven writers of Jian'an. He is good at writing and writing. At the beginning of the Han Dynasty, he Jin was the commander of the general. He Jin wanted to call foreign soldiers to kill the eunuch, but Chen Lin didn't listen to his advice. He Jin was defeated. Dong Zhuo took the opportunity to lead his troops to Luoyang. Chen followed Yuan Shao to attack Dong Zhuo and took charge of the secretary.

Yuan Shao ordered him to write for yuan Shaoxi Yuzhou, accusing Cao Cao of immorality and dependence. After yuan Shaobai, because of Chen Wenxiong at home, he kept Cao Cao in charge of Sikong army to offer sacrifices and keep records. Jian'an 22 years (217) died, buried in Sheyang Lake yandujing (now liujungou West four Li). During the Wanli period of the Ming Dynasty, Yang Ruiyun, the magistrate of Yancheng County, had poems and essays on Tomb sacrifice.

Song Cao

Song Cao (1620-1701) word binchen, No. shooting mausoleum. Calligrapher, patriotic poet. Born in the South Gate of Yancheng. He was influenced by his father Bo Xuegu when he was young, and began to study linchi at the age of 7. In Song Dynasty, Cao Gong was good at poetry and calligraphy, but he was not successful in his official career. In 1647, Li Yu and others fought against the Qing Dynasty. Defeated, in jail. After Yingshi, song retired to Tang village outside the South Gate of Yancheng. He closed the door to rest, met with friends and talked about arts, and his attainments became deeper and deeper. During the first year of Kangxi (1662-8), the imperial court issued two imperial edicts, which were recommended by the state officials, and the Song Dynasty lived in seclusion. In 1978, in order to compile the history of the Ming Dynasty, the imperial court issued an imperial edict to the famous Confucianists in China. Yan hang, the Minister of state, and Mu Tianyan, the governor of Jiangsu Province, took the exam together. The Song Dynasty refused to go because of his mother's old age. After that, he traveled to Jianghuai, visited Yangzhou, Zhenjiang, Kunshan, Suzhou and Hangzhou, and made friends with Gu Yanwu.

Chinese PinYin : Da Zong Hu