geographical position
Yulin City is located in the southeast of Guangxi Zhuang Autonomous Region, west of Nanning, the capital of the autonomous region190km, and is the residence of Yulin Municipal People's Government. East longitude 109 39' to118', north latitude 22 19' to 23 0 1'. East of Maoming City, Guangdong Province. It borders Qinzhou City, Guangxi Zhuang Autonomous Region in the west, Beihai City, Guangxi Zhuang Autonomous Region in the south, Guigang City, Guangxi Zhuang Autonomous Region in the north and Wuzhou City, Guangxi Zhuang Autonomous Region in the northeast. The total area of the city is 12838 square kilometers, accounting for 5.42% of the total area of 23666 1 square kilometers in Guangxi, ranking eighth among all prefecture-level cities in the region.
topography
There is Rong Da in the northeast of Yulin City, with the main peak1275.6m; There are 60,000 mountains in the southwest, with the main peak of118 meters. Yulin Basin is formed in the south of Rong Da Mountain and the east of Liuwan Mountain. There are Hanshan, Dongshan and Kuishan in the middle, and Shengshan in the west. Between Dongshan, Shengshan and Kuishan, a heather valley is formed. The lowest point of the city is Nanliu Village, Shatian Township, with an altitude of 61.3m. Yulin is located in the hilly platform of southeast Guangxi in the southeast region, with mountains, hills, valleys, terraces and plains interlaced, especially the hilly platform. Plain basin accounts for 17.4% of the city's area, hilly platform accounts for 49.4%, and mountainous area accounts for 33%. Among them, the cultivated land area is 6.5438+0.902 million hectares. The forest area is 682,000 hectares.
Climatic characteristics
Yulin belongs to a typical subtropical monsoon climate with a mild climate, with an average annual temperature of 22℃. Abundant rainfall, annual average rainfall1650mm; There is sufficient light and heat, with an average annual sunshine hours 1795 hours and a long frost-free period, with an average annual frost-free period of 346 days. The extreme minimum temperature is -2℃ and the extreme maximum temperature is 38.4℃. The annual precipitation days are above 160 days. The monthly average wind speed is suitable, with 1.3 ~ 1.8m per second.
land resources
The total land area of Yulin City is 12838 square kilometers, equivalent to 4 105500 mu, accounting for about 1. 15% of the total area of Guangxi. Among them, the cultivated land is 89 1.8 million mu, accounting for 21.1.2%; Garden 128 10000 mu, accounting for 3.12%; The land for animal husbandry is 229,900 mu, accounting for 5.60%; Woodland 1706700 mu, accounting for 41.57%; 639,900 mu of wasteland, accounting for15.59%; Urban and rural residential land 168300 mu, accounting for 410%; 2900 mu of industrial and mining land, accounting for 0.07%; Traffic land is 73 1 10,000 mu, accounting for1.78%; Glacier area 1 16600 mu, accounting for 2.84%; 3,300 mu of special land, accounting for 0.08%; 32,000 mu of sandy land, accounting for 0.78%; Other 1 12900 mu, accounting for 2.75%. [8]
mineral resources
By the end of 2007, the discovered minerals include iron, manganese, titanium, copper, lead and zinc, tungsten, molybdenum, tin, mercury, antimony, gold, silver, niobium, tantalum, yttrium (xenotime), cerium (monazite), zirconium, hafnium, phosphorus, sulfur, talc, zeolite, fluorite, mica and heavy metals.
Among them, fluorite is the most abundant mineral resource in China and the most important fluorite producing area in Guangxi, accounting for 6 1% of the total fluorite reserves in the whole region, and it is the dominant mineral in Yulin City. The main varieties are kaolin, granite, fluorite, limestone, iron, ferrotitanium, sulfur, gold and silver. Kaolin reserves rank first in Guangxi. Geothermal resources mainly include Luchuan Hot Spring, Xielu Hot Spring, Hu Sha Hot Spring, Licun Hot Spring and Lingshan Hot Spring. [9]