The first state rich in citrus

The first state rich in citrus was Quzhou.

Citrus belongs to Rutaceae and Citrus. Sex likes warm and humid climate, and its cold tolerance is slightly stronger than pomelo, lime and sweet orange. The plants of Rutaceae and Citrinae are distributed between north latitude 16 ~ 37. It is a tropical and subtropical evergreen fruit tree (except Fructus Aurantii), and there are three genera of Fructus Aurantii, Citrus and Kumquat used for economic cultivation. Citrus grown in China and other countries in the world is mainly citrus.

Citrus once constituted many kinds (strains), which can be divided into tangerine, orange, lemon, grapefruit and so on. Citrus fruits have good color, fragrance and rich juice. The sensory characteristics of oranges are: the shape of the fruit is small and flat, the skin is vermilion or orange yellow, the skin is thin and smooth but not hard, the taste is sweet and sour, and the heart is sharp and thin.

Quzhou is introduced as follows:

Quzhou is a prefecture-level city under the jurisdiction of Zhejiang Province, located in the Yangtze River Delta and the upper reaches of Qiantang River. Quzhou is a national green financial reform and innovation pilot zone, a pilot project of Qianjiangyuan national park system, a national business environment evaluation pilot project, a national multi-regulation pilot project, a national tourism demonstration zone pilot project, and the first batch of practice and innovation bases in China that "clear water and green mountains are priceless assets".

The border of Quzhou City is the western section of Jinqu Basin, and the corridor basin extending to the northeast has laid a basic landscape pattern, which is symmetrically distributed in the north and south with Qujiang River as the axis, and the altitude gradually rises. On both sides of Qujiang are valleys, which extend to hills and low mountains, and then to low mountains and Zhongshan. On the southeast edge is the Xianxialing Mountains, with the highest peak in China, Dalonggang, at an altitude of1500.3m.. The northwest and northern margin are the southern section of Baiji Mountain and Qianligang Mountain.

There are hills and low mountains in the west. The central valley plain is interlaced with low mountains and hills. The eastern part is dominated by valleys and plains, and the terrain is gentle. The lowest place in the territory is Xiatong Village, Longyou County, with an altitude of 33 meters. The landform types are mainly mountains and hills. China's hilly area is 7560 square kilometers, accounting for 85.44% of the total land area.