Yudu County, Ganzhou City, Jiangxi Province

Yudu County Yudu County, located in the east of Ganzhou City, Jiangxi Province, was founded in the sixth year of Gaozu (201 BC) of the Western Han Dynasty. It is known as the "mother of the six counties" and "the contact of Fujian, Guangdong and Hunan provinces". It is adjacent to Ruijin City in the East, Huichang county and Anyuan County in the south, Gan County in the west, Xingguo County and Ningdu County in the north. The total area is 2893 square kilometers, which has 9 towns and 14 townships, and the total registered residence population is 1 million 115 thousand. The county government is located in Gongjiang town. The territory belongs to Hakka culture (Gannan) ecological protection experimental area. In 2019, the GDP will reach 26.62 billion yuan.

Yudu county is the seat of the CPC Gannan Provincial Committee and the Gannan Soviet government in the period of the Central Soviet area. It is the starting point of the long march of the Central Red Army, the last base of the Central Soviet Area, the origin of the three-year guerrilla war in the south, the birthplace of the spirit of the Long March, one of the Quanhong counties in the Central Soviet Area and one of the places where the spirit of the Soviet area was formed.

The "master plan for the development of ruixingyu economic revitalization pilot zone" was officially approved by the national development and Reform Commission. The pilot zone covers Ruijin, Xingguo and Yudu counties (cities), with a total population of about 2.3 million. The plan envisages that Ruixing will be built into a "Special Economic Zone in the old zone" and a "Experimental Zone in the special zone".

In March 2019, it will be listed in the first batch of counties for the protection and utilization of revolutionary cultural relics. In May 20, 2019, general secretary Xi Jinping came to Jiangxi for investigation and research, and went to Yudu County, Ganzhou, to present a basket of flowers to the Central Red Army's Long March starting monument. On April 26, 2020, Yudu county will withdraw from the sequence of poverty-stricken counties.

Historical evolution

Yudu county was established in the sixth year of emperor Gaozu (201 BC) of the Western Han Dynasty, and it was named after Yushan Mountain to the north. Since June 1, 1957, the word Yudu has been changed to Yudu because of its rarity.

When the county was founded, it had a vast territory, including Ruijin, Huichang, Shicheng, Ningdu, Anyuan and Xunwu counties. It is known as "the mother of six counties" and "the rush between Fujian, Guangdong and Hunan". In ancient times, Yudu was the political, economic, cultural, transportation center and military important place of Gannan.

The county was established in 201 BC (the sixth year of Gaozu in the Western Han Dynasty). It is one of the three earliest counties in Gannan.

In 236, Yangdu county was set up in bailuying (changed to Ningdu County in 280).

In 544, Anyuan County was set up in Nanxiang.

Shicheng County was set up in the Five Dynasties, and Ruijin county was promoted to Ruijin County in 953.

In 982, Huichang county was set up in Jiuzhou.

During the period of the Soviet Area, it was divided into Duxian, Shengli, Dengxian, Ruixi, Xingsheng and Yuxi counties. The CPC Gannan Provincial Committee and the provincial Soviet government were stationed in Duxian county.

Yudu was liberated in 1949. It successively belongs to southwest Jiangxi administrative office, South Jiangxi administrative office, Ganzhou District, Ganzhou region and Ganzhou City.

Ganzhou Songcheng ancient charm

administrative division

By 2019, Yudu county has 9 towns and 14 townships: Gongjiang Town, Tieshanlong Town, Pangushan Town, Hefeng Town, qilushan Town, Zishan Town, Yinkeng Town, Lingbei Town, luoao Town, Luojiang Township, Xiaoxi Township, Lichun Township, Xinpi Township, Jingshi Township, huanglin Township, Shaxin Township, kuantian Township, ge'ao Township, Qiaotou Township, Ma'an Township, Xianxia Township, Chexi Township and Duanwu township. The county government is located in Gongjiang town. There is Yudu Industrial Park.

geographical environment

Location context

Yudu county is located in the east of Ganzhou City, 65 km away from Ganzhou City and 422 km away from Nanchang City; it is adjacent to Ruijin City in the East, Anyuan County in the south, Ganxian District in the west, Xingguo County and Ningdu County in the north; it is located between 115 ° 11 '～ 115 ° 49' e and 25 ° 35'8 "～ 26 ° 20'53" n. The total area is 2893 square kilometers, 83.25 kilometers long from north to South and 63.33 kilometers wide from east to west.

geology

The strata in Yudu county are exposed, including the Sinian of Proterozoic, the Cambrian, Devonian, Carboniferous and Permian of Paleozoic, the Triassic, Jurassic and Cretaceous of Mesozoic, and the Quaternary of Cenozoic. Magmatic activity is frequent, from Chengjiang to Yanshanian, the third-order structural unit is the north end of Xinfeng Yudu fold fault bundle. Because of the crustal movement, the tight linear fold and fault structure were formed. The Sinian strata are distributed in qilushan, Xiaoxi, Lichun, Tieshanlong, Jingshi, huanglin, Gaolong, Shaxin and Ma'an, with a thickness of 1100 meters. The Cambrian system is distributed in Qilu mountain, Xiaoxi mountain and Xiashan mountain, with a thickness of 4000 meters. Devonian system is distributed in Xiashan, Pangushan, qilushan, Luojiang, Zishan, kuantian, Huanggui, Yinkeng, Qiaotou, Ma'an, Chexi and other places. The thickness of Yunshan formation is 100 meters in the middle, Zhongpeng formation 572.4 meters in the upper and SANMENTAN formation 493 meters in the upper. The Carboniferous system is distributed in luoao, Luojiang, Xijiao, Lingbei, Xianxia, Ma'an, Qiaotou, Yinkeng, Chexi, Duanwu, kuantian, Zishan, Yuyang, Pangushan, Tieshanlong, Hefeng, qilushan, etc. the thickness of the lower Henglong formation is 266.5m, the lower Zishan formation 89.7m, the middle Huanglong Formation 772m, and the upper Chuanshan formation 421m. The Permian system is distributed in luoao, Hefeng, Zishan, Duanwu In Yuyang, Yinkeng, ge'ao and Qiaotou, the upper Longtan Formation is 570m thick, the lower Maokou Formation is 100m thick and the lower Maokou Formation is 135m thick. The upper Anyuan Formation is 201 meters thick, and the early and middle sediments are missing. Jurassic system is distributed in luoao, Xijiao, Lingbei, Xianxia, ge'ao and other places. Luoao formation of middle series is 851m thick and lacks early and late sediments. The Cretaceous is distributed in luoao, Luojiang, Xijiao, Lichun, Jingshi, Pangushan, Xiaoxi, Lingbei, Xianxia, Yuyang, Chexi, Xinpi and other places with a thickness of 3000 meters. Quaternary Pleistocene to Holocene deposits are distributed throughout the county, with Pleistocene thickness of 10-15m and Holocene thickness of 5-10m.

landforms

Yudu county has complex landforms, including basins, hills and rolling mountains, as well as broad mountain valley accumulation plains and hills. The whole terrain is composed of a series of parallel mountains and many basins of different sizes and various origins. The shape is in the form of NE-SW strip. The red rock basin in Yudu fault depression, centered on the county seat, is surrounded by the Yushan mountains in the northwest of the county, the Wuyi Mountains in the northeast and the Jiulian mountains in the south. In the south, East and North, the terrain is relatively high, and gradually inclines to the central and western regions, forming a closed hilly and low mountain landform with low mountains, hills and basins as the main body and rivers as tributaries. The main peak of pingkeng mountain in the south is 1312 meters above sea level. The terrain gradually decreases to the middle. The valleys in the central and western regions are gentle, low hills are widely distributed, and basins alternate with each other. The Gongshui river bed of luoao datan in the west is 98 meters above sea level.

hydrology

Yudu county is located in the middle reaches of Gongshui river. Tribute water is the main stream flowing through the county. Four tributaries, Meijiang river, Chengjiang River, Lianshui River and Xiaoxi River, are collected. The Gongshui main stream and four large tributaries gather 48 small tributaries with a drainage area of more than 20 square kilometers. The total length of the river is 1283 km, and the river network density is 0.44 km per square kilometer. It is divided into Gongshui, Meijiang and Lianshui.

climate

Yudu is a typical subtropical monsoon humid climate with mild climate, abundant rainfall and four distinct seasons, with an average annual temperature of 19.7 ℃. The average temperature in January and July is 8.2 ℃ and 29.7 ℃, the extreme temperature is 39.9 ℃ and - 8 ℃, the average annual precipitation is 1507mm, the rainfall from April to may accounts for 47% of the whole year, the annual sunshine hours is 1621.9 hours, and the average annual frost free period is 305 days. There are cold wave, typhoon, high temperature, dry heat and hail and other disastrous weather effects. The main soil type is red soil, accounting for 67.8% of the total area of the county.

Yudu County

natural resources

water resource

Yudu county is rich in water resources. In normal years, the total amount of local water resources is 851700 cubic meters per square kilometer. According to the area of cultivated land in 1989, the average amount of water per mu is 5033 cubic meters, and the average amount of water per capita in the county is 3420 cubic meters. The water quality is polluted except in some places. They were all in good condition. The theoretical reserves of hydropower are 287300 kilowatts, with an average density of 99.31 kilowatts per square kilometer. After the founding of the people's Republic of China, water resources have been developed and utilized rapidly, but the overall utilization rate is low, the water shortage of farmland is large, and the development and utilization of water energy resources is poor. In 1989, the per capita installed hydropower capacity is 5.48 watts, which is the least in Ganzhou.

mineral resources

Up to October 2011, 27 kinds of minerals have been found in Yudu county (tin, bismuth, molybdenum and copper are associated with tungsten), among which 23 kinds of minerals have been found. There are 103 mineral areas. Among them, there are 4 large-scale deposits (2 W, 1 talc and 1 tremolite), 5 medium-sized deposits (2 W, 1 Ag Pb Zn, 1 cement limestone and 1 refractory clay), 42 small-scale deposits (11 coal, 1 peat, 2 Pb Zn, 11 Sn-W, 3 AG, 2 NB TA, 2 re, 1 limestone, 1 refractory clay, 1 bentonite, 1 K feldspar, 4 kaolin and 4 ore deposits) There are 2 (warm) springs and 47 ore occurrences (excluding sand, stone, brick and tile clay for ordinary construction).

By the end of 2007, the main mineral reserves of Yudu county were as follows:

Silver: the resource reserves are 268.47 tons, of which the basic reserves are 52 tons, accounting for 19.4% of the resource reserves;

Tungsten: the resource reserves are 41138 tons, of which the basic reserves are 31424 tons, accounting for 76.4% of the resource reserves;

Zinc: the resource reserve is 33156 tons, of which the basic reserve is 3288 tons, accounting for 9.9% of the resource reserve;

Lead: the resource reserve is 14992 tons, of which the basic reserve is 3778 tons, accounting for 2

Chinese PinYin : Jiang Xi Sheng Gan Zhou Shi Yu Dou Xian