The geographical environment of nanbu county

Mammals mainly include: red fox, weasel, badger, mountain badger, civet cat, grass rabbit, squirrel, otter, bat, nest mouse, ritual mouse, house mouse and so on.

Birds mainly include egrets, herons, vultures, water ducks, yellow ducks, eagles, owls, pheasants, bamboo chickens, quails, crake, turtledoves, pigeons, cuckoos, owls, kingfishers, swallows, woodpeckers, Chinese Pulsatilla, orioles, hawthorn and crows.

Reptiles mainly include turtles, soft-shelled turtles, geckos, lizards, scorpions and snakes.

Amphibians mainly include: toad, frog, marsh frog, giant salamander and so on.

The fish mainly include: carp, crucian carp, silver carp, loach, eel, catfish, paste ball, white sturgeon, green wave, eel, Hei Bang and turtle shell. Nanbu county's oil and natural gas are distributed in Yutai, Shuangfo, Wannian, Laoya, Dongba and Yao Chang. Drilling began in 1970s, and more than 40 wells produced oil and natural gas.

Salt is distributed in Panlong, Nanmu, Beiyuan, Jianxing and gold towns, with abundant reserves. As early as the Eastern Han Dynasty, the county had dug wells to get brine and stir-fried salt, so it was famous for producing salt in history. In the 1940s, there were14,000 salt wells in China, with an annual output of more than 20,000 tons of salt. 1962 Stop salt making.

The domestic placer gold is distributed in the first and second terraces of Jialing River bend. The lower part of pebbles is intertwined with the top of grass roots and sand, and the enrichment degree is different. There are ore deposits in more than ten towns and villages along Jialing River, such as Nanlong, Panlong, Nanmu, Shihe and Wang Jia.

As an important raw material for concrete and wall painting in modern architecture, nanbu county is rich in river sand and pebbles. According to the prediction of the county mineral resources office, the saving is about 40 million cubic meters. Among the cultivated land in nanbu county, Chongqing native neutral purple soil accounts for 80.3%, old alluvial yellow soil accounts for 1 1.47%, and new alluvial sand accounts for 8.03%. The fertility is 20% for Grade A soil, 30% for Grade B soil, 30% for Grade C soil and 20% for Grade D soil. The PH value of soil is 92.64% neutral and 7.36% slightly acidic. There are 4 soil types, 6 subtypes, 13 soil genera and 54 soil species in the county.