Where are they all in China?

Natural environment: Du 'an is located on the transition slope from Yunnan-Guizhou Plateau to Guangxi Basin, in the east of Duyang Mountains, with high terrain in the northwest and low terrain in the southeast. The karst landform in the territory is about 3863.33 square kilometers, accounting for 94.34% of the county area. The farmhouse mountain in Gejia Village, Long Fu Township is1048.5m above sea level, which is the highest mountain in China. The altitude along the Diaojiang River in Longyan Village of Baiwang Township is 80 ~120m, which is the lowest in China. The main rivers are Hongshui River, Diaojiang River and Chengjiang River. A total of 25 underground rivers were investigated, including 80 main tributaries (including 55 tributaries), among which Sudi underground river system is one of the largest underground river systems in Guangxi. It belongs to the south subtropical monsoon climate zone. The average annual temperature in the county is 19.6℃, and the average annual rainfall is1700mm. The mountainous areas in the county are mainly limestone, and the hilly slopes are mainly red soil. Among the cultivated fields, the fertile paddy soil has the largest area.

Landform: Du 'an is one of the most typical karst landforms in China. Its scenery is beautiful, magnificent and diverse. The area is full of mountains and valleys; The mountains stretch and the mountain roads detour; There are many magical caves and depressions scattered all over the place. Rock springs in the mountains are like mirrors, and streams are picturesque; The grotesque rocks are magnificent, with unique scenery and extraordinary mountains and rivers, full of charm and emotional appeal of Dashishan Township.

Natural scenery resources: The county is famous for its grotesque caves and karst landforms. 1986 and 1987, more than 20 people from the royal British expedition visited the cave twice. According to the information provided by the Sino-British joint cave expedition, "caves have the advantages of constant temperature, constant humidity and low noise, and are ideal and suitable places for warehouses, hospitals and scientific research institutes, and it is also good to open up tourist attractions." Among them: Lion Rock, Chin Cave and Qiaoleng Tunnel.

Main attractions: Baxian Park, Pifuguan, Lvcenxian Valley, Cuiping Mountain, Longjing Yin Tao, Baxian Ancient Cave, Xiangquan jathyapple and Gu Song Island.

Mineral resources: The minerals found in Du 'an are coal, copper, antimony, mercury, iron, manganese, gold, silver, fluorite, pyrite, phosphate rock, crystal, agate, colored stone (black marble and white marble), limestone (limestone for cement, limestone for building stone, limestone for ash making and limestone for calcium carbide) and clay (clay for cement ingredients and clay for bricks and tiles). Among them, coal mine and limestone are the dominant minerals in Du 'an, and mining has formed a certain scale. Coal mine, the county's proven reserves (and approved into the regional mineral reserves table) 28.788 million tons. Limestone distributed in most areas of the county can be described as "inexhaustible", with good quality and high grade, which can be used as raw materials for chemical industry, metallurgy and building materials industry. In addition, the D-level reserve of white marble is 932,800 cubic meters, which has great development potential. After the colored stones are processed and carved into handicrafts, they are simple and elegant, unique and sell well at home and abroad.

Animal and plant resources: There are many wild animals in Du 'an Yao Autonomous County.

Animals include: monkeys, wild dogs, wild boar, wild cats, rabbits, civets, yellow cats, otters, wild goats, musk deer, squirrels, voles, flying squirrels, foxes, mountain torrents, marmots and so on.

Reptiles include: gecko, snail, pangolin, golden ring snake, silver ring snake, mountain snake, hundred-step snake, white snake, three-line snake, south snake, tree dragon and so on.

Amphibians have many kinds of frogs; Birds include partridge, turtledove, hairy chicken, oriole, hairy eagle, cuckoo, thrush, crow, starling, pheasant, mandarin duck, cuckoo, sparrow, magpie, lark, Ganzhu bird and so on.

Natural river fish include tongyu, herring, Qixingyu, small oil fish, loach, eel, sickle fish, catfish, etc., as well as soft-shelled turtle, soft-shelled turtle, crab, mussel and shrimp. Among them, civet cats, geckos, musk deer, pangolins and snakes are all precious wild animals.

The main tree species of timber forest are pine, fir, eucalyptus, toon, oxtail, camphor tree, kidney bean, melia azedarach, Wang Xian, kapok, maple and Camptotheca acuminata.

Precious tree species include golden plum, alder, giant tree, alpine cypress and so on.

Economic forest trees mainly include tung oil tree, camellia oleifera, Broussonetia papyrifera, chestnut, Dalbergia odorifera, Illicium verum, bamboo and so on.

Fruits include oranges, oranges, pomelo, longan, litchi, plums, pears, bananas, wild grapes and chestnuts.

Medicinal plants include Flos Lonicerae, Cortex Periplocae, Radix Sophorae Tonkinensis, Rhizoma Polygonati, Radix Dipsaci, Radix Polygoni Multiflori, Melaleuca Melaleuca, Semen Cassiae, Tortoise, Sapium sebiferum, Herba Nerviliae, liver cirrhosis, Radix Asparagi, Galla Chinensis, Fructus quisqualis, Poria, etc.

Paper-making raw materials mainly include Yunxiang bamboo, Bambusa stalk and Gracilaria lemaneiformis.

There are 58 families and 3 10 species of Gramineae, including 55 species of Gramineae, 0/0 species of Leguminosae, and more than 60 species of trees and shrub leaves that cattle and sheep like to eat.

Famous local products: calligraphy and painting paper, wild mountain wine, sandpaper, goat, lotus root vermicelli, bamboo and rattan weaving, colored stone handicrafts, etc.