Ledong Li Autonomous County, a county administrative region directly under the central government of Hainan Province

Ledong Li Autonomous County Ledong Li Autonomous County is an autonomous county directly under the jurisdiction of Hainan Province, located in the southwest of Hainan Island. It is between 18 ° 24 ′ n to 18 ° 58 ′ N and 108 ° 39 ′ e to 109 ° 24 ′ E. The terrain is high in the north and low in the south, with mountains on its back and sea on its face. It borders Wuzhishan City and Baisha County in the East and northeast, Sanya City in the southeast, Dongfang City and Changjiang Li Autonomous County in the north, and Nanhai in the southwest. At the end of 2019, the resident population of Ledong Li Autonomous County was 482 thousand and 700, and the registered residence population of the county was 542763, an increase of 5360 over the previous year. It has 11 towns and 188 villages (communities), covering an area of 2765.5 square kilometers, 1726.8 square kilometers of sea area and 84.3 kilometers of coastline.

In December 2019, it will become the pilot unit of the national rural governance system construction, and be selected as the pilot unit of the whole county to promote the quality improvement of farmers' cooperatives.

In 2019, Ledong Li Autonomous County will achieve a GDP of 14.435 billion yuan, an increase of 3.9% over the previous year. According to the three industries, the added value of the primary industry reached 7.755 billion yuan, an increase of 4.3%; the added value of the secondary industry reached 1.805 billion yuan, an increase of 2.1%; the added value of the tertiary industry reached 4.875 billion yuan, an increase of 3.9%. The three industrial structure is 53.7:12.5:33.8.

Historical evolution

Ledong Li Autonomous County was originally a part of Yazhou (county), Dongfang County and Changgan county.

In the first year of Yuanfeng (110 BC), zhuya and daner counties were set up. Ledong Li Autonomous County belongs to Linzhen County under zhuya county. In the fifth year of the first Yuan Dynasty (82 BC), daner county was abolished and merged into zhuya county. In the third year of the early Yuan Dynasty (46 BC), zhuya county was established as Zhulu County, which belongs to Hepu County and is in charge of Jiaozhou. In the 19th year of Jianwu (AD 43), Zhulu county was restored to zhuya County, which belongs to Hepu County and is in charge of Jiaozhou.

Wu chiwu five years (242 years), the restoration of zhuya County, Jiaozhou, later changed to Guangzhou. In the first year of Dakang (280), zhuya county was merged into Hepu County, belonging to Jiaozhou.

In 431 of the Southern Song Dynasty, zhuya county was established, and then Hepu province was established.

Liang (535-545) established Yazhou in daner County of Han Dynasty, which was under the command of Guangzhou.

Sui Daye three years (607), the restoration of zhuya County, leading County ten. Yande and Ningyuan belonged to the governor of Sili in Yangzhou. In the sixth year of Daye (610), Linzhen county and Lingxian county were established in Southwest China. Yande and Ningyuan belong to it.

In 622, Linzhen county was changed to Zhenzhou County, and Linchuan county was added, with four leading counties: Ningyuan, Yande, Linchuan and Lingshui. Ningyuan and Yande belong to it. In the second year of Zhenguan (628), Yande county was analyzed and Jiyang County was established. In the first year of Tianbao (742), Zhenzhou was changed to yandejun and luotun county was added. In the first year of Zhide (756), Yande county was changed into Ningyuan county. In the first year of Qianyuan Dynasty (758), Zhenzhou was restored, with five leading counties: Ningyuan, Yande, Linchuan, Jiyang and luotun. Ningyuan and Yande belong to it. It belongs to Lingnan East Road. Xiantong three years (862), is Lingnan road.

The Southern Han Dynasty (917-971) inherited the system of the Tang Dynasty. Zhenzhou province went to Yande, Linchuan and luotun counties, and led by Ningyuan and Jiyang counties.

In 972, Zhenzhou was changed to Yazhou, which was subordinate to Qiongzhou. In the third year of Zhidao (997), it belonged to Guangnan West Road. In the sixth year of Xining (1073), Jiangya Prefecture was named zhuya army, Jiyang County was named Tengqiao Town, and Ningyuan county was named Linchuan town. Chongning five years (1106), home Yande county. In the first year of Daguan (1107), Yande county was changed into Yande army, and Tongyuan county was divided into military administration. In the first year of Zhenghe (1111), Yande army was abolished and moved into Thanksgiving county. Tongyuan county was abolished as a town and attached to zhuya army. In 1116, yandezhai was set up. Tongyuan town is also taken as a Zhai. In the seventh year of Zhenghe (1117), zhuya army was changed into Jiyang army. Shaoxing six years (1136), the abolition of Jiyang army for Ningyuan county. Shaoxing thirteen years (1143), the restoration of Jiyang army. It governs Ningyuan and Jiyang counties.

In 1278, it was still Jiyang army in Song Dynasty, belonging to Qiongzhou road and Lihu Guangzhong calligraphy province. During the Zhizheng period (1341-1368), Jiyang County was abolished and only Ningyuan county was under the jurisdiction of Jiyang army. It was transferred to Xuanwei Department of haibeihai South Road, under the command of xingzhongshu province of Guangxi.

In 1616, Yazhou built Le'an city in Baoyou dongruizhi mountain. In the first year of Hongwu (1368), Jiyang army was changed to Yazhou, which was under the jurisdiction of Ningyuan County, Qiongzhou capital and Guangxi. Hongwu three years (1370), change Li Guangdong. In 1439, Ningyuan County entered Yazhou. Zhengtong five years (1440), cut Thanksgiving County under the jurisdiction of Yazhou.

In 1689, a happy camp was set up in baoyoudong. In 1905, Shengya Prefecture was divided into Zhili Prefecture, lingwanning County, Lingshui County, Changhua County and Thanksgiving county.

In the first year of the Republic of China (1912), Yiya Prefecture was directly under the jurisdiction of QiongYa Dao. In the summer of 1934, Chen Hanguang of the Kuomintang passed Qiong and set up "QiongYa Fuli Commissioner's office" in Le'an city. In May 1935, the national government of Guangdong Province designated Wuzhishan as Baisha, Baoting and Le'an counties, which were subordinate to the office of the ninth district administrative inspector of Guangdong Province. In September, Le'an county was changed to Ledong Li Autonomous County.

In June 1948, the people's Government of Ledong Li Autonomous County was established. From June to 1949, it belonged to QiongYa.

From 1949 to 1952, it belonged to QiongYa minority autonomous region.

From 1952 to March 1988, it was subordinate to Hainan Li and Miao Autonomous Prefecture.

After April 1988, it was subordinate to Hainan Province.

administrative division

By the end of 2016, Ledong Li Autonomous County had jurisdiction over 11 towns and 188 villages (communities) including Baoyou Town, Wanchong Town, Da'an Town, Zhizhong Town, Qianjia Town, Jiusuo Town, Liguo Town, Huangliu Town, Fuluo Town, Jianfeng town and Yinggehai town. County People's Government in Baoyou town.

geographical environment

Location context

Ledong Li Autonomous County is located in the southwest of Hainan Province. The geographical coordinates are between 18 ° 24 ′ - 18 ° 58 ′ N and 108 ° 39 ′ - 109 ° 24 ′ E. It borders Wuzhishan City and Baisha County in the East and northeast, Sanya City in the southeast, Dongfang City and Changjiang Li Autonomous County in the north, and Nanhai in the southwest. The total area is 2765.5 square kilometers, the sea area is 1726.8 square kilometers, and the coastline is 84.3 kilometers long.

geology

The geological structure of Ledong Li Autonomous County is composed of parent rock and the second stage Mesozoic granite. It is mainly composed of granite diorite and quartz diorite, followed by Cretaceous siltstone, conglomerate, sandstone and shale, as well as quaternary marine sediments, modern River Marine alluvium and shallow marine sediments. These different parent rocks and materials have tropical characteristics in the formation of soil.

Ledong Li Autonomous County has many types of parent rock and parent material, so there are many types of soil. There are both zonal and non zonal soils in Ledong Li Autonomous County, and the whole soil distribution has obvious vertical section law. The area 0-10 meters above sea level is coastal sandy soil formed by modern shallow sea sediments. The terrain is flat and the climate is dry. The vegetation grows drought resistant plants such as Lysimachia and cactus. The soil profile is not obvious, and the geology is dominated by sand. In the area of 10-50 meters above sea level, there is dry red soil in the coastal terrace of ancient sea sediments. The vegetation is sparse grassland. The soil layer is deep and has obvious profile layers. The soil fertility is low. It is mostly used for planting cashew nuts and sugarcane. The area above 50-350 meters above sea level is red soil, the geology is weathered granite or sand shale, the vegetation is tropical mountain evergreen broad-leaved forest and tropical mountain rain forest, the geology is granite or sand shale.

In Ledong Li Autonomous County, granite accounted for 59.5%, sandy shale 21.3%, andesite 1.1%, seabed sediment 14.6%, and modern river alluvium 3.5%. Granite is distributed all over Ledong Li Autonomous County, but the area of Sanping, Da'an and Zhizhong is relatively large; river shale is mainly distributed in Shanrong area and the area bordering Jiusuo town and Sanya City; river alluvium is mainly distributed on both sides of Changhua River and Wanglou River; coastal sediment is mainly distributed in the areas of Foluo, Yinggehai, Huangliu, chongpo, leluo and Jiusuo Along the coast. After long-term cultivation and utilization, some of these coastal sediment soils have formed paddy fields and some have formed dry land. The fertility of these soils also changes with the cultivation system and cultivation years. In the paddy field, some of the soil has become deep soil layer, high fertility of mud meat field, that is, Ledong Li Autonomous County, the most high-yield farmland, but some of the soil has gradually become low fertility of leaky bottom field.

topographic features

Ledong Li Autonomous County has all kinds of land types, including mountains, hills, hilly basins and coastal plains. The terrain is high in the north and low in the south, with mountains on its back and sea on its face. Mountains and hills account for 70% of the total area of Ledong Li Autonomous County, hills and basins account for 18%, and coastal plains account for 12%. It is suitable to develop tropical crops, forestry and animal husbandry in mountainous and hilly areas, and grain and oil, sugar cane, cashew nuts, melons and vegetables in coastal plain.

Most of the mountains in Ledong Li Autonomous County are about 1000 meters above sea level. The highest is houshiling in the north, with an altitude of 1654.8 meters, followed by haorouling, with an altitude of 1530 meters, and Jianfengling in the northwest, with an altitude of 1412.5 meters

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