What is the soil suitable for planting in the west of Tangshan, Hebei Province?

The soil in the west of Tangshan City, Hebei Province is suitable for planting chestnut.

1, topographic and geological conditions

Qianxi county is located in the eastern and southern edge of Yanshan subsidence zone, with mountains and rivers, and its landform features are typical low mountains and hills. The terrain of the county is high around, low in the middle and inclined to the middle.

The mountainous area of Qianxi County is dominated by gneiss, which is loose and easily weathered. The special geological conditions have created the most suitable soil conditions for chestnut planting in Qianxi. The soil in Qianxi is rich in nutrients, and the contents of potassium, sodium, aluminum, phosphorus, magnesium, iron, calcium, silicon and manganese, especially those needed for chestnut growth, are higher than those of other rocks, especially iron. There are many kinds of soil in Qianxi, mainly cinnamon soil, with thick and loose soil layer, good ventilation and water permeability, high organic matter content, high natural fertility, pH value between 5.6-7 and more gravel, which provides superior site conditions for chestnut growth.

2. Water conservancy conditions

There are many rivers and rich water resources in Qianxi County, Hebei Province. At the same time, influenced by monsoon, topographic precipitation is the rainy center in eastern Hebei, and abundant surface water and precipitation can meet the needs of chestnut growth. In addition, according to the growth law of chestnut, it is forbidden to rain in flowering period, and sufficient rain is needed in fruiting period. The rainfall in Qianxi County is concentrated in July and August, which not only avoids the flowering period, but also meets the demand of chestnut for rain in the fruiting period in time. The precipitation characteristics are consistent with the demand of chestnut for water.

3. Climatic conditions

Qianxi county is located at 39057' 1 5''-40 north latitude. 27' 48 ",east longitude11806' 49 7 ~118. 37 7 19 "belongs to continental semi-humid monsoon climate in warm temperate zone, with distinct seasons and obvious dry and wet seasons. Spring is dry and windy, summer is hot and rainy, autumn is warm during the day and cool at night, and winter is cold and dry. Annual average temperature 10. 1℃, annual average precipitation of 804.2 mm, annual total solar radiation energy of 5,200 ~ 5,400 MJ.m, and annual average sunshine hours of 2,705.9 h ... Suitable temperature, long-term eye exposure, abundant precipitation and sufficient heat provide superior conditions for the cultivation and development of chestnut.