Is the population density high in Xingren City, Southwest Guizhou?

Population density: 258 people/km2.

Xingren City is located in the middle of southwest Guizhou Province, adjacent to Zhenfeng County in the east, Anlong County and Xingyi City in the south, Pu 'an County in the west, Qinglong County in the north, and Guanling across the mountains and rivers in the northeast. The terrain is high in the west and low in the east, and the terrain in the territory fluctuates greatly. The county covers an area of 1785 square kilometers, governs 16 townships and 286 administrative villages, and is inhabited by 16 ethnic groups such as Han, Bu, Yi, Miao, Hui, Yi and Gelao, with a total population of 445,000, of which ethnic minorities account for 20% of the total population.

Xingren County, with simple folk customs and superior natural conditions, was once known as a "shopping mall" in history, but now it is famous for its rich gold and coal resources and is known as the "Golden Capital". The county is rich in mineral resources, mainly including gold, coal, antimony, mercury, thallium, sulfur, limestone and barite. Among them, the prospective coal reserves exceed 4.5 billion tons, making it the first medium-sized thallium-rich deposit in the world.

Xingren county has a suitable climate, which belongs to the mild and humid climate of the northern subtropical plateau type. The county's existing arable land is1089,300 mu, which is suitable for developing grassland animal husbandry. In 2002, the county's GDP was 7.79 billion yuan, the total grain output was 144489 tons, the total industrial output was 446 million yuan, the fiscal revenue was 83.68 million yuan (mainly from pillar industries such as coal, gold and flue-cured tobacco), and the net income of farmers was 1425 yuan.

Traffic development

Xingren county enjoys excellent location conditions, with 324 national highway in the east and 320 national highway in the west, provincial highways 2 14, 2 15, south (Ning)-Kunming (Ming) railway, Panbai (Se) high-grade highway and Guiyang (Yang)-Huangguoshu high-grade highway passing through the territory.

The east-west provincial highway 2 14 and the north-south provincial highway 2 15 in the county cross to form the main skeleton of the highway, and there is a Pu 'an-Xingyi highway connected to Pu 'an in the west, which radiates to the surrounding counties in a big shape. Huilong town, Baling Town, Zhang Yu Town on the broken roof and Tunjiao Town on Xing 'an Line have all formed a certain scale highway network. There are 9 highways in the county, such as Bianshan, Kazi, Dong Qing, Laoliushan, Bangjie, Kaysa Tun, Haizi, Broken Coal and Downhill, which are connected with the surrounding county roads, and Jiupan Ferry and Boyang Bridge are connected with Guanling and Qinglong. The main skeleton of the county highway has basically taken shape.

At present, the capacity of all kinds of highways in the county is about 1090 km. Among them, there are 3 provincial roads 15 1, accounting for 14%, and the road conditions are normal; More than 262 kilometers of roads 18 in Yang Qun county and township, accounting for 20.7%; Poor rural roads; Dingxing high-grade highway is more than 29 kilometers, accounting for 2.7%; Rural self-repair and self-support roads are more than 648 kilometers, accounting for 59.4%.

Geographical climate

The winter climate in Xingren County is warm and dry. Due to various factors, it is characterized by a mild and humid monsoon climate in the northern subtropical zone of the plateau, with no severe cold in winter, no heat in summer, a long frost-free period and the same season of rain and heat. Under normal circumstances, cold and warm air masses appear alternately in spring, the weather is very unstable, and there are often strong winds and cold in late spring. In summer, due to the influence of the southeast moist air circulation, there are many southerly winds, high humidity and heavy rain, but the heat intensity is low. When the western Pacific high extends westward and ocean typhoons land in Guangdong and Guangxi, it will bring precipitation to the county. Autumn lasts for a short time and cools down quickly. When the cold air in the north is strong, the autumn wind forms in the south. When the cold and warm air masses are evenly matched, autumn rain often occurs. Winter is controlled by the cold air circulation in the northwest and north to south, with more northerly winds, low humidity and less precipitation in the cold and dry continental air mass, so the phenomenon of "dry winter" often occurs. The cold air mass is a long way to the south, and the territory of Daxian County has become denatured, which has no serious impact, but there are also phenomena such as snowfall and freezing. The disastrous weather caused by weather fluctuation includes drought, hail, cold in late spring, rainstorm, autumn wind and strong wind.

First, the temperature

The annual average temperature in the county is 65438 05.2℃. It is the hottest in July, with an average temperature of 22.l℃. January is the coldest month with an average temperature of 6. 1℃. The extreme maximum temperature is 34.6℃ and the minimum temperature is -7.8℃. The number of days above lO℃ is 243 days, and the annual accumulated temperature above 10℃ is 4588℃.

In the valley areas below1000m in the northeast, such as Suojiang River, Boyang River, Mashahe River and Chapu River, the annual average temperature is above 16℃, the average temperature in June-August is above 22℃, and the average temperature in July is above 24℃.

The annual average temperature in the ridge areas such as Duantou Mountain, Dayakou Mountain and Magu Mountain in the west is below 1600 meters above sea level. The average annual temperature in most other areas is between 14- 15℃. The annual average temperature in Baling, Chengguan and Tunjiao is about 15- 16℃.

Second, air pressure.

From 10 +0 0954+65438+65438, the weather station began to measure the air pressure. During the period from 1954 to 1985, the air pressure varied from 844.3 mbar to 878.9 mbar, with an annual average of 86 1.3 mbar and the highest value of 878.9 mbar, appearing in 196 1,/. The extremely low value is 844.3 millibar, which appeared on May 9 198 1.

Third, humidity.

The air humidity was measured from 65438+65438 in 0947 to 1 in October. From 1947 to 1985, the annual average relative humidity is 80%. The minimum value is 2%, appearing on April 29th 1954, February 9th 1955 and February 4th 1969. The minimum monthly relative humidity is in March and the maximum is in August.

Fourth, sunshine.

Sunshine hours should be calculated from 65438+65438 in 0954 and 1 in October. From 1954 to 1985, the annual average sunshine 1564.7 hours, accounting for 35% of sunshine hours (sunshine percentage). The youngest sunshine (1954) is 1268.4 hours, and the oldest sunshine (1978) is 1889.6 hours. The annual average total radiation in the county is per square centimeter 103.00 kcal. The total annual radiation of each township is between 97- 103 kcal per square centimeter. The maximum value of total radiation is in the county, per square centimeter 103 kcal.

Verb (abbreviation for verb) water level drops.

Precipitation is measured from 1942 to 1 1.5. By the end of 1985, the total precipitation was 56,555.8 mm, the annual average precipitation was 13 15.3 mm, the annual average precipitation days were 190 days, and the annual average precipitation days were 6.9 mm. At least 1960 (960.4 mm). The number of days with daily precipitation greater than or equal to 25mm is 56 1 day, with an average of 13 days; The number of days greater than or equal to 50 mm is 164 days, with an average of 4 days per year; 13 is greater than or equal to 100 mm, and the maximum daily precipitation is 207.6 mm, which occurs in1971September 14. The longest continuous precipitation days over the years reached 28 days, with the precipitation of 247.8 mm, and the time was 197 1 year. The longest continuous days without precipitation is 29 days, and the time is 1949 years.

The distribution of precipitation in the county gradually decreases from west to northeast. The rainy area is in the area from Duantou Mountain, Dayakou to Magu Mountain. Dianmu, Gaowu, Panjiazhuang, west of Longchang Line, Zhang Yu District; On the western edge of Chengguan and Huangjiao District, the average annual precipitation is above 1400 mm ... The rainy center of the county is in the downhill, Wangjiazhai, Kongbai, Dew Camp, Zhang Yu and Jiaole areas, with the average annual precipitation of 1500 ~ 1540 mm; The rainy area is in the mountainous area, and the average annual precipitation is between1180 ~1250 mm; Other areas are between 1250 and1400 mm.

Sixth, the wind.

1942165438+1wind was observed on 5 October. Before 1952, the wind power was calculated by grade, and the data was incomplete. From September 1952, the wind force is calculated in seconds. From 1953 to 1985, the annual average wind speed is 1.9 meters per second. The most common winds are easterly winds and still winds. 10 minute average maximum wind speed 19 meters per second, west-southwest westerly, which occurred on 1967 May 24th. Dyne anemometer has been used to measure instantaneous wind speed since 1966. As of 1985, the instantaneous maximum wind speed is 38.2 meters per second (12), which occurred in June 1984.

The development of history

Xingren County belonged to _ _ country in the Spring and Autumn Period, and Yelang country in the Warring States, Qin and Han Dynasties. In the eighth year of Zhenguan in Tang Dynasty (634), Panshui County was established, belonging to Panzhou; From Tang Tianbao to Southern Song Dynasty, it belonged to Yabu and Yayawan. The Yuan Dynasty belonged to general manager office, Pu 'an Road. In the 16th year of Hongwu in Ming Dynasty (1383), Xingren established the city; In the first year of Yongle (1404), it belonged to Pu 'an appeasement department and was transferred to Sichuan Chief Secretary; In the 30th year of Wanli (1602), Xingren City was established. In the eighteenth year of Qing Shunzhi (166 1), Pu 'an County was established in this county, which belonged to Anshun Prefecture. In the 22nd year of Kangxi (1683), he moved to the county and ruled in Pu 'an County. In the 19th year of Qianlong (1754), a patrol inspection department was established in this county, which was called Xincheng. In the third year of Jiaqing (1798), a new county was established in this county, which was ruled by Pu 'an and belonged to Xingyi Prefecture. In the third year of Xuantong (19 1 1), he announced that he would leave Pu 'an County and set up a new county temporarily. In the first year of the Republic of China (19 12), Xincheng County was re-established. In June of 5438+00, Xincheng County was abolished, and some flower planting areas in Pu 'an, Annan, Anlong and Xingyi were allocated to establish Xincheng County. In the third year of the Republic of China (19 14), in June of 5438+0, Xincheng County was changed to Xinxian County, and in July, it was named Xingren County, with a county office under its jurisdiction. In the 17th year of the Republic of China (1928), the county government was renamed as the county government. In twenty-four years of the Republic of China (1935), the office of the Commissioner of the third administrative supervision district of the province was stationed in the county; Twenty-seven years moved to Anshun; I stayed in the county for 28 years. 1949 12 19 Xingren specializes in peaceful uprising and county liberation.

After the founding of New China, 1950 to 1952 were under the jurisdiction of Xingren District, 1953 to 1956 were under the jurisdiction of Xingyi District, and 1956 to 1965 were under the jurisdiction of Anshun District. 1958 65438+ In February, Zhenfeng merged with Xingren, called Xingren County, and the county was established as the county seat. 196 1 July, the original organizational system of the two counties was restored. 1965 to 198 1 September, which is under the jurisdiction of Xingyi District. 1In May, 982, the Buyi and Miao Autonomous Prefecture in southwest Guizhou was established to administer Xingren.

In April, 20021year, Xingren City was named as the second batch of national "green prevention and control demonstration counties" for crop diseases and insect pests.

202 1 1, the Ministry of Agriculture and Rural Affairs recommended Xingren City as the third batch of national rural entrepreneurial innovation typical counties.

In June 2020, Xingren City was included in the second batch of revolutionary cultural relics protection and utilization counties (Long March District (Red Army)).

From 2065438 to March 2009, Xingren City was included in the list of the first batch of counties (around the Yangtze River) for the protection and utilization of revolutionary cultural relics.

On February 20 16, xingren city was included in the list of counties (cities, districts) with basically balanced development of compulsory education in China in 20 15.