Jianyang Lake

Jianyang Lake

Jianyang lake, also known as Jianhu Lake, is located about five kilometers southeast of Yuanqiao in Huangyan District, adjacent to Luoyang Office of Luqiao District in the East and Zeguo town of Wenling City in the south. It is formed from the ancient bay into a west east lagoon. From wangjiaao in the west to zhensuoqiao out of the lake in the East, it is 2500 meters long and 50 meters wide. It is a river section of jinqinggang water system, which originates from Taihu mountain and consists of shanshuijing river. The river flows from west to East all the year round. The original water area is more than 2000 mu. In the early Republic of China, it began to reclaim land for planting. In the 1960s, it began to reclaim dykes and dig ponds to raise fish. The existing water area is about 1000 mu. In the lake area, the rivers are curved and there are many sandbars. There are islands in the lake and lakes on the island. The upper lake and the lower Lake each have an island in the lake, which is surrounded by sandbars. Ponds are dug on the island for aquaculture.

Ecological condition

The lake area has a good ecology with a variety of animal and plant resources. Reeds, bamboos and willows are everywhere, and wild egrets and white gulls are flying in the smoke. Huguang waterscape is known as "Shajiabang in Huangyan". Among the wild animals, there are more than 10 species of birds, such as Guze tit, brown grey tit, grey magpie, dove wax bead, pit bird, grass bird, etc., more than 10 species of reptiles, such as viper, and seven or eight species of amphibians, such as frog; plant resources mainly include evergreen coniferous forest, evergreen broad-leaved forest, coniferous broad-leaved mixed forest, shrub and grass, woody cultivated vegetation, etc.

geographical position

Taizhou City

Taizhou city is located in the central coast of Zhejiang Province, in the middle of China's coastal zone. The total area of the city is 9411 square kilometers, which is 172.8 kilometers long from east to west and 147.8 kilometers wide from north to south. It is adjacent to Ningbo and Shaoxing in the north, Jinhua and Lishui in the west, Wenzhou in the South and the East China Sea in the East. The urban area is located in the north end of wenhuang plain in the middle of Taizhou City, covering an area of 1536 square kilometers.

Yuanqiao town

Yuanqiao town is located in the south of Huangyan District, Taizhou City, adjacent to Huangyan City in the north, Luqiao District in the East, Wenling City in the South and Yueqing City in the West. The total area of the town is 80.4 square kilometers, showing the structure of "Six Mountains, one water and three fields". Since the opening of the port in the Song Dynasty, Yuanqiao has been known as the "important town of Nanxiang". With superior location, developed economy, convenient transportation and beautiful environment, Yuanqiao is the material distribution center of Huang, Wen and le.

Jianyang Lake

Jianyang lake is located about 5km southeast of Yuanqiao Town, 18km away from Huangyan City, 5km away from Luqiao City, 20km away from Jiaojiang city and 6km away from Zeguo town in Wenling. Surrounded by many rivers, surrounded by mountains on three sides, the natural environment is beautiful. The Ningbo Taizhou Wenzhou Railway, airport expressway and national highway 104 under construction cross Jianyang Lake area from East, South and West.

Geology and geomorphology

Taizhou is close to the mountains and faces the sea. The terrain inclines from west to East. There are various landforms in Taizhou, such as mountains, hills, basins, plains, bays and islands. The mountains in Northwest China are continuous, and the mountains and hills account for 2 / 3 of the land area. In the southeast, there are gentle hills, flat plains, broad beaches, crisscross rivers, tortuous coasts, numerous harbors and islands.

The geomorphic structure of Huangyan area can be summarized as "seven mountains, one water and two fields". In the East, it belongs to the wenhuang plain, which is a land of plenty of fish and rice; in the west, it is hilly and mountainous, with the main mountain ranges of Kuocang mountain branch and beiyandang mountain. After the Himalayan movement of the neotectonics, the Huangyan Area rose in the West and fell in the East. The western mountainous area is characterized by a young mountainous area, and the eastern part is a descending area. There are more than 100 meters of loose Quaternary sediments (about 23 million years ago), forming a marine plain, accounting for about one third of the whole area. It is an important agricultural area. Yuanqiao town is a 5000-6000-year-old marine accumulation area. Before the formation of the land, there were sapropel layer, biogas iron ore layer and cyanite layer in the 1-meter profile, which is called ancient hypabyssal body.

Jianyang lake is located in the southeast of Yuanqiao Town, in the plain area of water network, which is a part of the wenhuang plain, mainly composed of wetland, water network and agricultural land. The lake area is surrounded by mountains on all sides, including Shizishan, Jilongshan, Mashan and xilinling (Laoyingshan) in the north and Wenling tianhuangshan in the south. The forest coverage rate of surrounding mountains is close to more than 60%, and the ecological environment is good.

hydrologic condition

There are many rivers in Taizhou. There are two main water systems, Jiaojiang River system and Jinqing river system. Jianyang lake belongs to Jinqing water system, with a total area of 1.25 square kilometers. It is the largest inner lake in Huangyan District and the largest inland wetland in Taizhou city. The main rivers connected with the lake are Southeast Zhongjing, southwest Zhongjing and Shanshui Jing. Nanzhongjing, 15-22 meters wide and 12 kilometers long, is the main drainage channel in the south of Huangyan District; shanshuijing, 21-30 meters wide and 13.65 kilometers long, is the main channel for discharging the flood water from Taihu mountain area into jinqinggang. Among them, the reach from Jianyang bridge to Luqiao is large in upper part and small in lower part, with poor flood discharge, low-lying terrain on both sides and frequent waterlogging.

The distribution of groundwater in Taizhou city can be divided into rich water area, relatively rich water area, poor water area and extremely poor water area according to the reserves of groundwater resources.

Soil type

The soil types in Huangyan Area are mainly yellow soil, red soil, fluvo aquic soil, paddy soil and saline soil, 14 subclasses, 41 soil genera and 117 soil species. Among them, Jianyang Lake area is located in the marine plain area, mainly composed of fluvo aquic soil and paddy soil, with flat terrain, high content of organic matter and good ability of fertilizer and water conservation, which is suitable for the cultivation of dry grain, rice, citrus and other crops and fruit trees. In addition, Jilongshan and other mountains are dominated by red soil, with more gravel and better fertility, and mainly planted with fruits and other trees.

climatic conditions

Located in subtropical monsoon climate, warm and humid, abundant rainfall, four distinct seasons. The average temperature is 17 ℃, the average temperature in January is 6 ℃, and the average temperature in July is 27.8 ℃. The final frost period is on March 14, and the first frost period is on November 29. The average frost free period is 259 days. In winter, affected by the northwest air flow, it is usually sunny and cold. When the cold air goes southward, severe cooling and northwest gale often appear. In spring, the cold and warm air masses collide frequently, sometimes cold and sometimes hot. In early summer, because the cold air from the north meets the warm and humid air from the south, the influence is equal, forming the Meiyu weather. After entering the midsummer of July, under the control of subtropical high, except for local thunderstorm, there are many sunny days, high temperature and more sunshine. Autumn cooling faster, the mid autumn day after high air cool, commonly known as "little spring.".

Plant resources Jianyang lake is rich in plant resources. According to the biodiversity survey report, there are 538 species of vascular plants belonging to 389 genera of 139 families (including subspecies), including 33 species of pteridophytes belonging to 22 genera of 17 families, 505 species of seed plants belonging to 367 genera of 122 families (21 species of gymnosperms belonging to 17 genera of 9 families, 484 species of angiosperms belonging to 350 genera of 113 families). There are 352 wild plants and 186 cultivated plants. There are more than 10 families: Gramineae (56 species), Compositae (41 species), Leguminosae (29 species), Rosaceae (23 species), Liliaceae (14 species), Cyperaceae (13 species), Polygonaceae (12 species), Euphorbiaceae (12 species), Rubiaceae (12 species). At the same time, Jianyang lake has four national class II protected plants, mainly Fagopyrum dibotrys, Cinnamomum camphora, Glycine soja and Ormosia henryi. There is one species listed in the red list of species in China, namely, palm tree.

The vegetation types of Jianyang lake can be divided into 5 vegetation types: coniferous forest, broad-leaved forest, shrub grass, aquatic vegetation and cultivated vegetation, 9 vegetation types: warm coniferous forest, mixed coniferous and broad-leaved forest, bamboo forest, low mountain shrub grass, emergent aquatic vegetation, floating aquatic vegetation, orchard, nursery and crop field, 23 formation groups and 28 groups.

Animal resources Jianyang lake has a good ecological environment with a wide variety of animal and plant resources. Reeds, bamboos and willows are everywhere. Wild egrets and white gulls fly in the smoke. They are called "Shajiabang in Huangyan". According to the biodiversity survey statistics, there are 114 species of known animals in Jianyang Lake area, including birds, mammals, reptiles and so on. Among them, there are 42 bird species, accounting for 10.12% of the total bird species in southeastern Zhejiang, including one national first class protected species, two national second class protected species, and 10 provincial key protected species; 11 mammal species, two national second class protected species, and one provincial key protected species; 7 reptile and amphibian species, one national second class protected species, and two provincial key protected species; 16 fish and mollusk species; 4 crustacean species; There are 34 species of insects.

Humanistic conditions

Jianyang lake is a lagoon evolved from an ancient Bay about 2000 years ago, which has a certain historical and cultural heritage. "Jianyang lake, located at the foot of Jilong mountain, the 39th capital of the Qing Dynasty, is a huge flood in the southeast, with an area of 2000 mu, one Li vertically and five li horizontally. Among them are the reeds on the sandbanks, which are dancing in the sky. Silverfish in water, Long Cun Cun Cun Cun, such as Allium macrostemon leaves, color such as silver, taste the most beautiful. In the middle of the stream, it's like "every Chinese flavor".

In 1905, the county censor Yang Chen, together with you Tao and Nan Shunpu, developed industry. He built a dike around the lake, planted mulberry and raised silkworms, and built a Western-style villa in the lake. In Tao Yuanming's "going back to my hometown", the word "taking pride out of the South window" means "taking pride in Xuan"

Chinese PinYin : Jian Yang Hu