What climate type, geology and soil does Sanqingshan Mountain in Jiangxi belong to?

The difference between north and south of Jiangxi is about five and a half latitudes, which is close to the Tropic of Cancer. Jiangxi should have four distinct seasons and four equal seasons, but due to the influence of topography and other factors, the spring and autumn seasons are shorter, and Xia Dong is longer, with only one and a half months to two months in spring, four to four and a half months in summer, about two months in autumn and nearly four months in winter.

The annual average temperature in Jiangxi is 16.2℃~ 19.7℃, which is the hottest in summer and July, with an average temperature of 28℃~30℃ and the coldest in winter, with an average temperature of 4℃~9℃. The annual average precipitation is1341.4 ~1939.4 mm, and the frost-free period is 24 1~304 days.

1, the mileage is different.

Jiangxi is a mountainous country with complicated vertical climate. As the saying goes, "the height of ten feet is not one foot" and "the slope of one yin and one yang is much different". This is the so-called "ten miles is different from the sky". The climate of Jiujiang City and Lushan Mountain is a typical manifestation of this feature. Peach blossoms in Jiujiang City are purplish red, and when the spring is full, the frost on Lushan Mountain is not broken, and the residual snow is still visible, and peaches and plums are still hibernating. The ancients said: "There is no spring and summer in the mountains, and flowers in February only bloom in April."

2. Light and hot water are basically synchronized.

Sunshine, heat and precipitation are called "light hot water" for short. Statistics show that during the period from March to June in Jiangxi, the trend of light and hot water is the same from less to more and from low to high. From July to September, the light and heat are from high to low, but after the rainy season, the precipitation is greatly reduced, and the light and hot water are basically synchronized, which is beneficial to crop growth. March to 165438+ 10 is the golden season for agriculture in Jiangxi.

It rains at home in Huangmei season.

The rainy season in Jiangxi is from April to the beginning of July every year, in which April to May is the spring rain period, followed by the plum rain period, that is, around June, when plums are ripe, the plum rain is continuous and the river rises, which is a scene of "it rains in every family in Huangmei season and frogs croak in the grass pond" (Shi Xiushi, Song Zhao).

4. Typhoon and timely rain in autumn

In mid-July, the rainy season in Jiangxi basically ended, and by June 10, the average total precipitation was about 230 ~ 500 mm. At this time, the temperature is high, the evaporation is large, and the crops need more water, which is prone to summer drought or autumn drought. However, this season is a time when there are more typhoon activities along the coast, which is very beneficial to Jiangxi. There are about 6 typhoons affecting Jiangxi every year, and there are 1~2 typhoons actually entering Jiangxi.

5. Eighteen "autumn tigers"

After autumn, Jiangxi is still in the heyday of subtropical high, with continuous high temperature weather of 15~20 days. The common people call it the "Autumn Tiger", and the agricultural proverb goes, "It's summer in beginning of autumn if it's not summer.". This climate feature is conducive to the growth of autumn crops, and Jiangxi is suitable for planting double-cropping rice, which is related to the "autumn tiger". If the "autumn tiger" is not obvious, it will affect the yield of late rice in the second season. As the agricultural proverb says, "If the heat is not hot, the grain will not bear fruit".

6. In September, Chongyang Dan orange fragrance

During the Double Ninth Festival around October, Jiangxi is a season of light clouds, crisp autumn and good harvest. Orchards on both sides of hilly slopes and river valleys are covered with red oranges.

7. Blow open the petals of ten thousand pear trees.

Jiangxi is located in the mid-latitude, with warm winters and little snow. Only northern Jiangxi and mountainous areas have one or two heavy snows every winter. The snow scene in Lushan Mountain is interesting, with green trees and red houses wrapped in silver, the upper layer of the stream is covered with jade felt, the snow shell is ringing, and a string of ice curtains are hung on the rock wall, especially on the pine and bamboo, which are crystal clear, if "the jade chrysanthemum is in full bloom" and "the pear flower is in full bloom".