The geographical environment of qingfeng county

Qingfeng county is located in the alluvial plain of the Yellow River, with loam under the silt.

The soil in qingfeng county is alluvial from the Yellow River, with flat terrain, deep soil layer and good texture. The soil in the county belongs to fluvo-aquic soil, which is developed on loam alluvium of modern rivers, and is influenced by groundwater activities and cultivated into mature agricultural soil artificially. According to the influence of hydrogeological conditions on soil development and the characteristics of soil itself, fluvo-aquic soil can be further subdivided into three soil genera, namely mixed soil, silt soil and cinnamon soil. Their common characteristics are that the soil layer is deep, the whole soil is medium soil and clay, the aggregate structure of the mixed soil is good, it is loose and easy to cultivate, and the muddy soil is sticky and difficult to cultivate, so the soil is drought-resistant and has good water resources conditions, which is suitable for planting various crops. Therefore, the vast majority of this type of soil is single cultivated land, with irrigated land accounting for more than 95%, and only a small amount of dry land, woodland and garden land, which is one of the stable and high-yield producing areas for planting wheat, corn and cotton in the county. Qingfeng county belongs to temperate continental monsoon climate, with four distinct seasons, abundant sunshine, mild climate, moderate rainfall, long frost-free period, obvious monsoon climate, early warming in spring, but unstable, frequent cold wave activities and frequent droughts in winter and spring; There are many waterlogging in summer heat, concentrated precipitation, rain and heat in the same season, uneven distribution of precipitation in time and space, concentrated precipitation often causes local floods and rainy in late autumn; Winter is cold, dry, foggy, with low temperature and plenty of sunshine. The annual average temperature is 13.4℃, and the difference between the hottest and coldest annual average temperatures is 2.2℃. The hottest in July, with an average of 27℃; 1 month is -2. 1℃. The extreme high temperature is 42.2℃ and the extreme low temperature is-265438 0.0℃.

Qingfeng county has moderate light and heat resources, with average daily temperature of 10℃ and accumulated temperature of 4,498℃, and grain crops can be harvested twice a year. Over the years, the sunshine percentage is 58%, the annual total solar radiation 1 18.3 kcal/cm2, the effective light radiation is 57.9 kcal/cm2, the average frost-free period is 2 15 days, the average first frost day is10.28th, and the final frost day is April 4th.

It is 46-54m above sea level, with an average annual rainfall of 540mm. Its climate features belong to temperate continental monsoon climate zone, with distinct seasons all year round, and the evaporation is far greater than the rainfall, which is the main climate feature of our county.

The main disastrous weather in qingfeng county is rainstorm, lightning, fog, gale, blizzard, high temperature, drought, low temperature, hail and continuous rain.