The geographical environment of Tongxiang

Tongxiang City is located in Hangjiahu Plain in the north of Zhejiang Province, with geographical coordinates of 30 28' ~ 30 47' north latitude and12017' ~120 39' east longitude. It is adjacent to Xiuzhou District of Jiaxing City in the east, Haining City in the south, Deqing County and Yuhang District of Hangzhou City in the north, Nanxun District of Huzhou City in the northwest and Wujiang District of Jiangsu Province in the north.

Tongxiang City is a part of the Yangtze River Delta Plain, with low terrain and no hills. Generally speaking, it is high in the southeast and low in the northwest, slightly inclined to Taihu Lake, with an average elevation of 5.3 meters.

The rivers in China belong to Taihu Lake system in the Yangtze River basin. The city boundary river is connected with the Shangtang water system in Chang 'an, with Haining in the south and Jiangsu Province in the north via Lanxi Tang. The Beijing-Hangzhou Grand Canal flows through the city boundary, with a total length of 4 1.77km. There are 46 backbone rivers in the city, most of which intersect the canal vertically and are distributed in a network. The rivers connected with Tongxiang section of the Canal mainly include Jinniutang, Baimatang, Kangjingtang, Chang 'an Tang, Hanshantang, Ling 'an Tang, Lamb Tang, Xishengdai Tang and Changshan River, with a total length of 240 1km and a total water area of 46.3km2, accounting for 6.3% of the total area of the city. It is a typical Jiangnan water network plain. Tongxiang is a typical subtropical monsoon climate. Warm and humid, with four distinct seasons, abundant rain and sunshine. It is characterized by rainy spring, hot summer, dry autumn and cold winter.

The annual average temperature is 65438 06.5℃. The maximum Leng Yue 1℃, the monthly average temperature of 4. 1℃, and the extreme minimum temperature of-1.0℃ occurred in 199 1 year and 12.30. It is the hottest in July, with the monthly average temperature of 28.5℃ and the extreme maximum temperature of 4 1. 1℃, which occurred on August 9, 20 13. The daily average temperature exceeds 65438 00℃. The first day of average warming is March 17, and the end day is June165438+1October 26, and the first ice sunrise is now June165438+1October 29. The annual frost-free period is 243.6 days, the annual thunderstorm day is 32. 1 day, the annual fog day is 30.8 days and the annual snowfall day is 9.6 days. The main disastrous weather is rainstorm, drought, typhoon, continuous rain, cold wave, lightning and strong wind. There are generally no destructive natural disasters.