The natural resources of Qianjiang River

Qianjiang River is criss-crossed with rivers and canals and dotted with lakes, and is known as the "land of plenty". The tributaries of the Yangtze River, such as Hanjiang River and Dongjing River, run through the whole territory. There are 2 1 main irrigation and drainage canals, grain-borrowing lakes, Wanhui Lake, Fengjia Lake, Egret Lake, Zhangjia Lake and Su Hu in Qianjiang City, including 27,000 mu of lakes. Qianjiang has a pleasant climate, with annual average temperature 16. 1℃, annual average sunshine hours 1949~ 1988 hours and frost-free period of about 250 days. It is most suitable for warm and hot water fish culture, and the development of aquaculture has unique advantages.

In 20 10, there were 175 fishing grounds in Qianjiang city. In 2007, the fishery culture area was 264,000 mu, including 6,543,800 mu of shrimp and rice continuous cropping area and 482,000 eels in cages. Aquatic product output 104400 tons; The processing capacity of aquatic products reached 77,300 tons, and the foreign exchange earned by export reached 52.36 million US dollars. The total output value of fishery economy reached 210.6 billion yuan, accounting for 35.2% of the total agricultural output value of Qianjiang city. The cultivation area of famous and special aquatic products is 6,543.8+10,000 mu, and four high-efficiency famous and special aquatic products cultivation bases, such as 6,543.8+10,000 mu shrimp and rice continuous cropping cultivation bases focusing on Carassius auratus, Longwan, Haokou and Yuyang, have been established. 500,000 eel breeding bases in cages focusing on Xiongkou, Haokou, Zhangjin, Longwan and Zhou Ji; A 50,000-mu joint breeding base for fish, pigs, ducks and geese focusing on Longwan, Zhangjin and Haokou. Qianjiang City has formed a plain greening system with farmland forest network as the main body, roads and canals as the backbone, villages and towns as the focus, networks, belts, patches and spots closely combined, and trees, irrigation, flowers and grass collocated. Qianjiang City has 450,000 mu of forest land, forest coverage rate 16. 1%, standing stock volume 1.5 1.000 cubic meters, rural village green coverage rate of 68%, road green space rate of 96.5%, farmland forest network green space rate of 92% and water system green space rate of 93%.

While continuing to improve the regional environmental quality, Qianjiang Forestry has made great efforts to adjust the forestry industrial structure, highlight the investment attraction of forestry projects, strengthen the cultivation and management of resources, continuously deepen the reform of forestry management system, and vigorously develop non-public forestry, thus forming a new forestry industrialization pattern based on the seedling and flower industry and driven by the intensive processing of poplars. The annual production capacity of poplar processing in Qianjiang City is 6.5438+0.5 million cubic meters, the scientific and technological content of products is increased, the utilization rate of resources is improved, and the output value is over 100 million yuan; The nursery stock and flower base covers an area of 6.5438+0.5 million mu, with annual sales exceeding 100 million yuan. The strength of forestry industry is constantly increasing, and it has become a new sunrise industry that drives the economic growth of the whole city. Qianjiang Depression is located in the north-central Jianghan Basin, including most parts of Qianjiang and parts of Tianmen and Xiantao, covering an area of about 2,500 square kilometers. Qianjiang Depression is rich in proven mineral resources such as oil, natural gas, brine, rock salt, potassium salt, potassium mirabilite and anhydrous mirabilite. Qianjiang also has underground resources such as mineral water and clay.

The distribution area of rock salt in Qianjiang Depression is about 2000 square kilometers, the cumulative thickness of rock salt is about 1.800 m, and the buried depth of minerals is 700-2 1.45 m.. It is estimated that the geological reserve of rock salt is 790 billion tons, which is 20-30 times that of Zigong, the salt capital of China. Among them, the first to fourth members of Qianjiang River are rich in salt beds, and the estimated thickness is greater than 1800 meters. Among the 3.45 square kilometers of salt deposits that can be mined by Hubei Mineral Reserves Committee [199 1]02 and [199 1]05, there are 0.66 square kilometers of salt deposits in the northern Qianjiang section of Wangchang Oilfield in Qianjiang City, Hubei Province and Cai Hu in Qianjiang City, Hubei Province. Glauber's salt reserves are1.1.800 million tons, and the content of sodium chloride in salt layer is 64. 1 1% to 85.47%. The amount of C+D grade salt ore is 36.75 1 10,000 tons, the amount of pure salt is 33.028 million tons, the amount of sodium sulfate (Na 2 SO 4) is 689,000 tons, and the average grade of sodium chloride (Nacl) is 89.9%. The in-table grade pure salt content of the ore block is 35.267 million tons, and the off-table grade E grade pure salt content is 536. 1. Potash deposit, with a depth of1643-3040m, a thickness of 0.42-1.32m, and a predicted distribution area of 1 10 km2. Potassium salt deposits are mainly mirabilite and anhydrous potassium magnesium alum.