Geographical climate of Nanfeng town

Nanfeng Town is a town under the jurisdiction of duchang county, Jiujiang City. It is adjacent to Pengze Lake (mouth) in the north and south of the Yangtze River. It faces the stars in the west and lives in the east of Lushan Mountain. It borders Yongxiu, Xinjian, Nanchang and Yugan in the east. The peaks overlap on the green water, and the idyllic buildings are dotted with green and red flowers. The shepherd boy plays the flute early and the fishing boat sings late. Throughout the ages, it has attracted countless poets and writers to stop and forget to return. Xie Lingyun, Li Bai and other famous poets have left a well-known poem for them. Su Shi, a great writer in the Song Dynasty, said: "Poyang Lake duchang county, Wan Lighthouse; Nanshan people don't cross the water, and the east wind blows old peach blossoms. " Huang Tingjian even praised this land as "the proud picture of Li Cheng and Fan Kuan". Nanfeng Town is located in the north of Jiangxi Province, with east longitude1162 ′ 24 ″ to11636 ′ and north latitude 28 50 ′ 28 ″ to 29 38 ′. There are Wushan in the north and Poyang Lake in the south; Huang Jinshan, Yin Bao Lake, East Coast Dongzhou, East Poyang County; The southern boundary is Xia 'anzhou, Xiashan, Nan 'an and Broad Bean Island, bordering Boyang, Yugan, Nanchang and Xinjian counties. Songmen Mountain and Xihe River in the west face Yongxiu and Xing Zi counties across the sea. Feng Ping River, Lutang River, Wushan Egongtu, Xie Yiling and Shuangjian Mountain are bordered by Hukou and Pengze counties in the north. Quantudong

It is 52.7 kilometers wide in the west and 80 kilometers long in the north and south, covering an area of 2,669.53 square kilometers, accounting for about 1.6% of the province's area.

Duchang landform is dominated by hills and lakeside plains, with wide waters and low mountains in some areas. The terrain is high in the north and low in the south, with Dagang-Wang Dun fold uplift belt as the axis and inclined to the northwest and southeast. The highest point in the territory is Sanjiangyuan in the northeast, with an altitude of 647.3 meters, and the lowest point is Binhu District, which is only 10 meter. From northeast to southwest, it shows the trend of low mountains, high hills, low hills, plains and lakes. Duchang has a well-developed water system with numerous rivers and ports, including 39 large and small rivers and ports, with a total length of 359.6 kilometers. According to the flow direction, it can be roughly divided into seven major water systems: Dagang, Daxihu, Miaoxin Lake, Dayuan Lake, Zhoujiahu and Tuanzikou. Duchang is located in the subtropical humid monsoon climate zone, influenced by Poyang Lake, with mild climate, abundant rainfall, abundant sunshine, sufficient heat, short ice age, long frost-free period, short spring and autumn season and long summer and winter. According to meteorological records, the first day of spring appears on March 24th on average (the first day when the daily average temperature passes 10℃ is beginning of spring), and the duration is about 65 days. The first day of summer appears on May 28th on average (the first day when the daily average temperature stably passes 22℃ is the first day of summer), and the duration is about 1 19 days. The average start date of autumn appears on September 24th (the day after the average daily temperature stably passes 22℃ is the start date of autumn), and the duration is about 59 days. The start date of winter appears on average at165438+1October 22nd (the day after the average daily temperature passes 10℃ is the start date of winter) and lasts about 122 days. At the turn of winter and spring, it is often hit by cold waves and the weather is changeable. At the turn of spring and summer, it was alternately controlled by cold and warm air masses, and it was rainy and cloudy all day; At the turn of summer and autumn, the vice squad leader lived in a high position for a long time, with sunny and hot weather and little rain. In autumn and winter, the cold air from the north invaded the south strongly, and the temperature plummeted and the frost was cold.

Climate element: 1, temperature: annual average temperature 17. 1℃, with the range of 16℃ to 17℃. The daily temperature difference is 7.65438 0℃. 65438+ 10 is the coldest month with an average temperature of 4.4℃, and the hottest month is July with an average temperature of 29.3℃. The order of monthly average values is: 4.4℃, 6.0℃, 10.7℃, 16.5℃, 2 1.5℃, 25.4℃, 29.3℃, 29. 1℃, 24.6. 2. Accumulated temperature: the annual average active accumulated temperature ≥℃ is 5800-6500℃. 3. Ground temperature: the annual average surface temperature is 19.5℃. 4. Frost-free period: the average frost-free period for many years is 26 1 day, the longest frost-free period is 300 days, and the shortest is 227 days. The average frost-free period of the whole year is 27 1 day, with the longest 300 days and the shortest 239 days. 5. Sunshine: the average sunshine hours for many years is 2076.3 hours, and the sunshine rate is 47%. 6. Precipitation: 1952- 1958 precipitation 1728.28 mm, 1959- 1989 average precipitation 1.5 mm 7. Evaporation and drying: annual average evaporation.

The main disastrous weather and natural disasters are: spring cold, small full cold, wind hail, plum rain, summer drought, rotten autumn, cold dew wind; Flood, drought, wind and hail, pests and diseases. Other disasters, such as low-temperature freezing snow disaster, plague, earthquake, etc., generally have low frequency, small affected area and light losses.