Geographical environment of Guancheng Hui nationality area

Guancheng Hui nationality area belongs to the continental climate of semi-arid monsoon type in the north temperate zone. Its characteristics are: windy in spring and changeable temperature; Summer is hot and rainfall is concentrated; Autumn is cool and sunny; Winter is cold and dry, windy and snowy. The general sunshine hours are 2385.5 hours, and the sunshine rate is 54%. June has the most sunshine hours, 258.2 hours, and the sunshine rate is 60%. The least in March is 177.7 hours, and the sunshine rate is 48%. The accumulated temperature above 10℃ is 4673.2 hours, which is closely related to the photosynthesis, growth and reproduction of crops and is beneficial to the growth and development of autumn crops. At the same time, sunshine hours are related to sunny, cloudy and cloudy days. The average years in this area are: sunny 173.2 days, cloudy1010.5 days, and cloudy for 90.7 days.

Although the temperature varies greatly throughout the year, it is generally mild. The coldest and hottest weather in a year won't be too long, just about a month. Winter and spring are controlled by northwest airflow, with more northwest wind and lower temperature, generally between-10℃. The coldest time is mostly in January, and the monthly average temperature is -3℃. The temperature in winter is dry and cold, and sometimes there will be "late spring cold", which is extremely unfavorable to crops and vegetables and needs to be guarded every year. The frost-free period is longer, 227 days a year. The first frost period is around165438+1October1,and the final frost period is around March 28th. Frost period, suitable for the growth of various crops. This is also the best season for fishery production.

Precipitation is characterized by great interannual variation and uneven distribution within the year, with an average precipitation of 636.7 mm in most years. According to the statistics of Zhengzhou Meteorological Observatory, the annual maximum precipitation is1128.4 mm (1964) and the minimum precipitation is 334.8 mm (1996). The annual precipitation is mostly concentrated from June to September, with an average of 4 15.2mm, accounting for 65.2% of the annual precipitation. The average precipitation from March to May is 1 19.5mm, accounting for18.8% of the annual precipitation; The average precipitation from June 65438 to February of the following year was 102 mm, accounting for 16% of the annual precipitation. The rainfall is the largest in July, and the average monthly rainfall in most years is 140 to 160mm.

There are many north winds and southeast winds to the west of Guancheng Hui nationality area, which mostly occur in winter and spring, with the maximum in 65438+February and 65438+ 10 month every year. The maximum wind power can reach 8-9. Strong winds of magnitude 8 or above have an average of 23 days in most years, but the number of days in each year varies greatly. In summer and autumn, there are more southeasterly winds or southerly winds, mostly of Grade 2-3, and less gale of Grade 8. The rivers under the jurisdiction of Guancheng Hui Autonomous Region mainly include Xiong 'er River, Qili River, Chaohe River and Shili River, all of which belong to the Huaihe River system. Xiong 'er River originates from Tiesanguan Temple in the southern suburbs of Zhengzhou City, with a drainage area of 87 square kilometers, a drainage area of 80 square kilometers, a river length of 2 1.4 kilometers, and a length of 5.4 kilometers flowing through its jurisdiction. Sacrifice the town to Jinshui District and enter Dongfeng Canal.

He Shili originates from Xinzheng, flows through He Shili Town, passes through National Highway 107, reaches Qilihe Village in Caonan Township, reaches Chahe Village in Putian Township in the north, and joins Qilihe River in the north of Longhai Railway. It is 29.4 kilometers long and flows through Guancheng District 16.8 kilometers. The drainage area is 6 1 km2, and the drainage area is 20.5 km2.

Longxugou, the ancient name of Qilihe River, originated near Banpoqiao Village, Guodian Town, xinzheng city. It flows through Shilihe Town, Shangzhuang Village and Qilihe Village in Caonan Township, joins Weihe River in Putian Township and flows eastward into Dongfeng Canal. The total length is 38.3 kilometers, and the length flowing through the jurisdiction is 27 kilometers. The basin area is 205.7 square kilometers, and the basin spacing is 103 square kilometers.

Chaohe River originated in xinzheng city. It was called service water in ancient times, also known as Luanhe River and Putian River. Because of its tidal phenomenon, it is now called Chaohe. It flows through Caonan Township and Putian Township under its jurisdiction and flows into Dongfeng Canal in Xiaosunzhuang, Putian Township. The total length is 32. 1km, and it flows through the jurisdiction area of 20.8km The drainage area is1610.3km2, and the interval area is 9 1 km2.