Soil types: According to the soil survey in Jing 'an County in 1982, there are 6 soil types in the county, 10 subcategories, 25 soil genera and 67 soil species.
By 2007, the cultivated land in Jing 'an County was 177546.3 mu, accounting for 8.59% of the county's total land area, and each agricultural population occupied 1.9 1 mu on average. All towns and villages in Jing 'an County have cultivated land, with Renshou, Tian Xiang, Shuikou and Gaohu as the most mountainous towns, mainly planting rice and cash crops.
Garden: 2760 1.4 mu, accounting for 1.34% of the total land area in Jing 'an County. Orchards are mainly distributed in mountain towns such as Shuangxi, Leigongjian, Tian Xiang, Renshou, Shuikou and Gaohu, and mainly produce citrus. Tea gardens are mainly distributed in Central Plains, Luowan, Du Yao, Sanchalun, Gaohu, Shuikou, Baofeng and other towns, producing black tea, green tea and white tea.
Woodland: 1707980.8 mu, accounting for 82.65% of the total land area of Jing 'an County. Woodlands are mainly distributed in Baofeng, Du Yao, Shuikou, Gaohu, Luowan, Zhongyuan, Sanchalun, Leigongjian, Renshou and other towns, and are rich in wood and bamboo.
Grassland: 246 mu, accounting for 0.0 1% of the total land area of Jing 'an County. Grassland is mainly distributed in the Central Plains, Luowan, Shuikou, Gaohu, Renshou and Tian Xiang.
Other agricultural land: 54,652 mu, accounting for 2.64% of the total land area of Jing 'an County. Including rural roads, pits, paddy fields and farmland water conservancy land.
Town, residential area and industrial and mining land: 36,329.2 mu. It accounts for 1.76% of the total land area of Jing 'an County.
Traffic land: 5202.9 mu, all of which are highway land, accounting for 0.025% of the total land area of Jing 'an County.
Land for water conservancy facilities: 12 106.3 mu, accounting for 0.59% of the total land area in Jing 'an County. Including reservoir water surface and water conservancy project construction land.
Other land: 3407 1.3 mu, accounting for 1.65% of the total land area in Jing 'an County. Including river surface, reed land and tidal flat.
Unused land: 10923.4 mu, accounting for 0.53% of the total land area of Jing 'an County. Including grassland, swamp, sandy land, bare land and bare rock gravel land.
Paddy soil: It is widely distributed in China, with an area of199,200 mu, accounting for 9.64% of the land area of Jing 'an County. Soil-forming parent materials are modern river alluvium, argillaceous rock weathering, red sandstone weathering and acidic crystalline rock weathering, which are the main cultivation soil for food crops, especially rice. Paddy soils in China can be divided into four sub-categories: flooded type, flooded type, latent type and leaching type. According to its parent material, it can be divided into 1 1 soil genus; According to soil types, it can be divided into 38 soil types.
Tidal soil: covers an area of 330,000 mu, accounting for 0. 16% of the land area of Jing 'an County. The first terrace and floodplain scattered on both sides of the river are developed on the soil-forming parent material of modern river alluvium, which is the soil for cultivating dry land crops such as vegetables, sesame, melons and ramie. The fluvo-aquic soil in China has 1 subclass, 1 genus and 3 soil species.
Red soil: It is the main soil in hilly areas below 500 meters above sea level in China, and it is distributed all over the country, with an area of 6.5438+0.2839 million mu, accounting for 62% of the land area of Jing 'an County. It is the main cultivation soil for economic trees and crops in Jing 'an County. Red soil in China can be divided into red soil and yellow red soil.
Mountain yellow soil: generally located in the middle and low mountains at an altitude of 600 ~ 1200m, with mountain yellow brown soil above and red soil below. Jing 'an County covers an area of 245,600 mu, accounting for 1 1.88% of the land area of Jing 'an County. Mountain yellow soil can be divided into 1 subclass, 3 soil genera and 8 soil species.
Mountain yellow brown soil: it is generally located at the altitude of Zhongshan 1200 ~ 1500m, and the lowest shady slope is located at the altitude of 800 ~ 900m, with an area of184900mu, accounting for 8.94% of the land area of Jing 'an County. The main vegetation is floral, fragrant and weeds. Mountain yellow brown soil can be divided into 1 subclass, 1 soil genus and 2 soil species.
Meadow soil: It appears at the top of Zhongshan Mountain above 1.500m, with an area of only over 20,000 mu, accounting for 0.97% of the land area of Jing 'an County. The main vegetation is mountain grass, wild ancient grass, Dianthus, etc. Mountain meadow soil can be divided into 1 soil genus and 1 soil species. As of 2007, surface water refers to the part of water that produces runoff on the surface except infiltration and evaporation. Because there are great differences between annual rainfall, monthly rainfall and regional rainfall, the amount of water resources is not constant. April, May and June have abundant rainfall, but autumn and winter are dry. The rainfall in the western mountainous area is more than that in the eastern hilly plain area.
The total amount of surface water in China has changed greatly year by year, with an average annual possession of 6543.8+332 million cubic meters. According to the cultivated land area of Jing 'an County in 2007 (data are all from the Bureau of Statistics), the average surface water per mu is 750.62 cubic meters; According to the population of Jing 'an County in 2007, the per capita surface water is 9356.6 cubic meters. Jing 'an is rich in water resources, and only surface water is enough to meet the needs of industrial and agricultural production and human and animal life in the county.
According to the national synchronous hydrological series data, 50% runoff depth is 92 1.5mm, 75% runoff depth is 709.4mm, and 90% runoff depth is 460 mm.
Jing 'an county can develop hydropower resources 107205kW, including 5 1070kW in Nanhe and 56 135kW in Beihe. By the end of 2007, 63,030 kilowatts had been developed and utilized, accounting for 58.79% of the exploitable amount. Among them, Nanhe has developed 20 195 kW, accounting for 39.54% of the exploitable; Beihe River has developed 42,835 kilowatts, accounting for 76.438+0% of the exploitable amount. Non-ferrous metal tungsten is mainly distributed in Maogong Cave to Shiziyan and Dawutang to Xin 'anli in Jiuling Mountain Range. It is a protective mineral stipulated by the state and is subject to a controlled mining policy. Some minerals such as tin, copper and molybdenum are also associated with tungsten ore. Tin is distributed in the steep cliff east of Jiuling Mountain, and three ore bodies are delineated, which are altered granite-type tin-tungsten ore bodies, mainly tin, accompanied by tungsten. Tantalum is located in the lion mountain, which belongs to medium scale, and its occurrence particles become extremely fine, so it is difficult to beneficiate.
Facing the granite diabase, there are many large and small ore bodies 10, with a reserve of more than 2 million cubic meters. The color of porphyritic granite is black and white, and larger porphyritic crystals are evenly distributed in it. Potash feldspar granite is located in Beigang, the color is orange-red or flesh-red, and the grain size is thick.
Feldspar (porcelain clay) potash feldspar deposit is located in Shizishan and belongs to pegmatite vein type deposit. There are irregular dikes in front of Luowan building in feldspar mine. Zhongyuan and Kun also have a small reserve. There is also a porcelain clay mine in the area from Luowan Shaoqian to Damalun. The ore is white, mainly composed of powdered kaolin, with a very small amount of Yingshi, muscovite and hydromica, belonging to sandy kaolinite. Xia Dong also has sandy kaolin, and Renshou Shuiling has porcelain clay.