The primary industry refers to all kinds of professional farmers, such as grain farmers, vegetable farmers, cotton farmers, pig farmers, bean farmers, fishermen, herders, melon farmers, tea farmers, and all kinds of aquatic products and native agricultural raw materials. By using the natural growth and self-reproduction characteristics of organisms, the growth and reproduction process is artificially controlled to produce products or industrial raw materials that human beings need to consume without deep processing.

2. Secondary production refers to the secondary industry.

The secondary industry includes all kinds of professional workers and all kinds of industries or products. Such as injection molding workers, operators, riveting workers, sewing workers, welders and so on. In the traditional industrial economic theory, an industrial sector in industrial division refers to an industrial sector that processes the products (raw materials) provided by the primary industry and industry. According to the "three industrial classifications", it is divided into mining, manufacturing, production and supply of electricity, gas and water, and construction.

3. The tertiary industry refers to the tertiary industry.

The tertiary industry is all kinds of services or commodities. Public service industry, political and cultural industry, large-scale or public education industry, large-scale or public medical industry, public administration industry, management industry, public finance industry, public consultation and charging industry, seiyuu animation production firm, public passenger transport industry, management personnel, scientific research, education or training industry, human resources firm, large-scale grain, cotton and oil centralized purchase and sale industry, ethnic religion, film and television media firm, military service.

Since the global financial crisis broke out in 2008, all provinces in China have been actively adjusting their industrial structures, which have become more and more reasonable. It is manifested in the following aspects:

First, the proportion of primary industry in most provinces has gradually decreased. Among them, Hainan, Sichuan, Hunan and Jiangxi dropped significantly, with the declines of 6%, 5.9%, 5.4% and 5% respectively.

Second, the proportion of the secondary industry in the central and western regions is still on the rise, but the growth rate is limited. In 20 13 years, there were 15 provinces with the proportion of the secondary industry exceeding 50%, including 10 provinces in the central and western regions. Compared with 2008, the proportion of provinces increased by 1 1, and the growth rate was below 6% except for Anhui and Tibet.

Third, the proportion of tertiary industry has generally increased. 20 13 There are 8 provinces with the tertiary industry accounting for more than 45%, including 6 eastern provinces. Compared with 2008, the proportion of 24 provinces has increased, of which 6 provinces have a larger increase, all above 6%. There are 7 provinces with declining proportion, except Fujian, the rest are all central and western provinces.