How many expressways are there in Langfang?

Beijing-Shanghai Expressway (formerly Beijing-Tianjin-Tanggu, now G2) has a Langfang exit around Langfang called Langfang Exit.

In addition, Zhuo Lang Expressway also has Langfang exit, but Zhuo Lang Expressway is less than Beijing.

In addition, there are many expressways passing through Langfang.

For example, Jingha passes through Sanhe Yanjiao (belonging to Langfang jurisdiction), and Beijing-Shenyang Expressway passes through Xianghe (belonging to Langfang jurisdiction).

Geographical environment of Langfang

geographical position

Langfang City is located in the east of central Hebei Province, bordering Kyoto in the north, Jinmen in the east, Cangzhou in the south and Baoding in the west. It is located between Beijing and Tianjin, in the hinterland of Bohai Sea. The geographical coordinates are116038' 07 "-44' 06" and 39028' 42 "-32' 54" north latitude. ?

Langfang City is located in the mid-latitude zone, with a continental monsoon climate of warm temperate zone and four distinct seasons. Summer is hot and rainy, winter is cold and dry, spring is dry and windy, and autumn is refreshing and cool. Sufficient light and heat resources, rain and heat in the same season, are conducive to crop growth. At the same time, however, there are many meteorological disasters, such as dry-hot wind, thunderstorm, hail and strong wind, continuous rain and cold wave, which often have adverse effects on agricultural production.

Temperature: annual average temperature in Langfang (197 1-2000)1.9℃. January is the coldest, with an average monthly temperature of -4.7℃. July is the hottest, with an average monthly temperature of 26.2℃.

Frost-free period: the first frost in Langfang generally begins in the middle and late days of 10/0, and the last frost generally ends in the middle and late days of April of the following year, with an average frost-free period of about 183 days.

Precipitation: The average annual precipitation in Langfang (197 1-2000) is 554.9 mm ... The seasonal distribution of precipitation is uneven, mostly concentrated in summer, and the precipitation from June to August can generally reach 70-80% of the total annual precipitation.

Sunshine: The average sunshine hours in Langfang (197 1-2000) are about 2660 hours, with the most sunshine hours in May and June each year.

Wind power: Langfang has a continental monsoon climate, with northerly winds in winter and southerly winds in summer, with an average annual wind speed of 1.5-2.5 meters.

topography

Most of Langfang city is located in the depressed area. With the subsidence of the earth's crust, the ground is gradually filled with Quaternary sediments, which leads to a large subsidence thickness of Cenozoic strata. The terrain of the whole city is relatively flat and monotonous, generally 2.5-30m above sea level, with an average elevation of about13m. Due to floods, alluvial action, repeated crevasse siltation of rivers, staggered distribution of sediments, and the influence of wind and human activities, the landforms in the territory are quite different, with gentle hills, depressions, sand dunes and small alluvial piles everywhere, and the appearance of the city is large and flat.

The terrain in the northern region is relatively high, high in the north and low in the south, and there are many types of landforms. There is a small piece of low hills in the northeast corner of Sanhe County, which is the remnant vein on the south side of Yanshan Mountain, covering an area of 76 square kilometers. Generally, the mountain height is 200-300 meters above sea level, and the mountain behind Daling is 52 1 meter above sea level, which is the highest peak in the city. Followed by Longmen Mountain, 459 meters above sea level; There are mountainous hills in the west and south, along the southern foot of Yanshan Mountain, and the piedmont plain is distributed in an east-west belt with an area of 773 square kilometers. The terrain inclines from north to south, with an altitude of 10 to 30m, with an average altitude of about18m. Further south, the south-central part of Xianghe County is an alluvial plain with a slope of 1/3000, an elevation of 5-16m, and an average elevation of 1 1 m..

The central and southern parts of Langfang are all alluvial plains with flat and single landform types, with a total area of 5 1.79 square kilometers, accounting for more than 80% of the city's total area. 2.5-25m above sea level, slope1/2500-110000. The terrain north of Daqing River is low from northwest to southeast, and the terrain south of Daqing River is low from west to northeast. The famous Wen 'anwa and Dongdian are located in the north and south of Daqing River, with a total area of 79,000 hectares, accounting for 12.3% of the city's total area. Among them, Wen 'anwa covers an area of 59,000 hectares, with an average elevation of less than 4 meters, and the area north of Mawuying Village is only 2 meters above sea level, which is the lowest point in the city. Dongdian Lake covers an area of 20,000 hectares, with an average elevation of about 5 meters and the lowest point of 2.5 meters.

The topography of the whole city gradually inclines from north, west and south to the lower reaches of Haihe River in Tianjin.

natural resource

land resources

Langfang is rich in land resources. Except for 76 square kilometers of low hills in the north, 98% of the land is plain, with flat and open terrain, deep strata and diverse soil types, which is suitable for planting a variety of crops.

water resource

Langfang is located in the middle and lower reaches of Haihe River basin with developed water system. There are 20 rivers in the city, with an average annual surface water storage capacity of 333 million cubic meters. The available amount of water resources is 774 million cubic meters.

mineral resources

Langfang is located at the southern foot of Yanshan Mountains, and is rich in mineral resources, mainly including petroleum, natural gas, coal, flux dolomite, limestone for cement, clay for purple sand ceramics, sepiolite, underground hot water, mineral water and other mineral resources. Coal is mainly distributed in northern sanhe city and southern cities and counties; Oil and natural gas are mainly distributed in Anci District, Yongqing County, Gu 'an County, Bazhou City and Wen 'an County, with proven oil reserves of 200 million tons and natural gas reserves of 654.38+086 billion cubic meters. Underground hot water is distributed in all districts, cities and counties within the jurisdiction, with a total area of 1007.9 square kilometers and the highest outlet temperature of 93℃, which is of great development value.

plant resources

There are more than 400 genera and about 920 species of plant resources 127 families in Langfang city. There are many kinds of cultivated plants, such as 1 1, such as grain crops, beans, potatoes, oilseeds, cotton and linen, tobacco, medicinal materials, vegetables, melons and fruits, grasses, etc. The city flower of Langfang is the rose.