Zigong

is located in the Sichuan Basin, and has an area extension of 4,372.6 km2 (1,688.3 sq mi). Granted the recognition as one of the Historical and Cultural Cities of China by the State Council of the People’s Republic of China. Zigong has long been renowned as “Salt City” for its brine extraction techniques and the attendant salt-related culture.[citation needed] In ancient China, Salt was regarded as the energy for body and valued higher even than Gold.[citation needed] Therefore, salt trading was always the most profitable business and salt merchants were the wealthiest people. Hence, Zigong had always been one of the richest cities in China until the founding of the People’s Republic of China with the introduction of new salt producing methods and advancing of technologies.[citation needed] It has had the Zigong Salt Museum since 1736.

The Fuxi River, a tributary to the Yangtze River, snakes through the city’s core. The area is very humid and the visibility can be reduced dramatically in the area due to ground fog. The humidity and fog of Zigong can be attributed to that it sits on what was once a vast inland sea. Changes in the environment caused the water levels to subside leaving salt, brine, and natural gas.

During the summer months, the temperatures can reach as high as 40 °C (104 °F); during the winter months the temperatures hover around 15.5 °C (60 °F). The humidity hovers between 80% and 90% year round.[citation needed]

Zigong is situated south of the Sichuan basin hill country. To the east of Zigong is Luzhou and to the west of Zigong is Leshan. To Zigong’s south is Yibin and to the north-east is the city of Neijiang.

自贡市

中华人民共和国四川省下辖的地级市,位于四川省中部偏南。市境东临泸州市,南接宜宾市,西邻乐山市,北界内江市。地处四川盆地南部低山丘陵区,沱江纵贯市境东部,于东南部与釜溪河汇合,岷江支流越溪河流经西部。总面积4,372平方公里,人口277.02万。

自贡市是国家历史文化名城,有“千年盐都”、“恐龙之乡”、“南国灯城”和“美食之府”之称,为中华民国最早建制的二十个市之一,四川省最早的省辖市和工业重镇,现已发展为一座百万城市人口的大城市。自贡是世界地质公园国家历史文化名城中国优秀旅游城市国家园林城市对外开放城市、国家知识产权试点城市、国家卫生城市、国家级重点保护古生物化石集中产地、全国首批老工业城市和资源型城市产业转型升级示范区、省区域中心城市、川南区域中心城市。

自贡市具有两千年的盐业历史。自贡市因盐而得名--自贡其实就是自流井贡井两个著名产盐区的合称。举凡交通、运输、商业、金融、文化、教育、卫生、市政,以及城市的职业构成、社会意识、政治风云、生活方式等,无不深刻地打上盐业经济的烙印。正是盐塑造了自贡这座城市。自贡盐业生产起源于东汉章帝年间,素有“千年盐都”美称,一度成为中国井矿盐的中心和最大的手工工场。自贡市也是世界上最早开发利用天然气的地方。自贡因盐业的鼎盛而“富庶甲于蜀中”,被誉为“川省精华之地”[1][2],曾经为中国最富庶的城市之一,也为抗日战争中捐款额度全国最高的城市,记录于国民政府军方资料中,釜溪河北岸的石刻“还我河山”就是当年国军将领冯玉祥为自贡富商捐款之善举所题写。中华人民共和国建立后,自贡市成为三线建设中重要的化工城市。在“2013年中国城市竞争力排行榜——上市公司视角下的城市排名”中,自贡市位列市级行政区中成长竞争力前十强的第一位。自贡市区也是罕见的天然太极城,半城青山半城楼,釜溪河绕城而过,并在代家坝和樊家坝形成了S形河床,组成一幅天然的太极图案。未来的自贡将以“太极城”为中心,将老城区、汇东新区(含南湖)、沿滩新城、东部新城连接成片,中心城区建成区面积超过200平方公里。