First, the classification of seaweed
The ocean area accounts for 70% of the global area, and seaweed is an important part of marine living resources, the largest plant group in the ocean, and is closely related to human life production and economic development. The coastline of the continent is long, the shallow sea area is large, the seaweed species are abundant, and the seaweed is greatly affected by the ecological environment, and the classification of seaweed is relatively difficult. Over the past few decades, researchers from different countries have focused on a wide variety of seaweeds, which vary in form and size. Seaweed is generally divided into two categories: micro-seaweed and large seaweed.
Source: Compiled by Huajing Industry Research Institute
Second, seaweed aquaculture production
The value of seaweed in the mainland is not only reflected in the edible value, animal feed, functional drugs, etc., but also plays an important role in biologically active properties, biomass fuels, environmental protection paper and so on. According to the China Fishery Statistics Yearbook, China's seaweed aquaculture production has been rising from 2013 to 2020, and by 2020, China's seaweed aquaculture production will rise to 2.6151 million tons, up 3.02% year-on-year.
Source: China Fishery Statistics Yearbook, compiled by Huajing Industry Research Institute
According to the China Fishery Statistics Yearbook, the main seaweed producing areas in China are Fujian, Shandong and Liaoning. Among them, Fujian Province is the largest producer of seaweed on the mainland, with a aquaculture output of 1.236 million tons in 2020, accounting for 47.26% of the total output. Followed by Shandong Province, the aquaculture output in 2020 was 669,200 tons, accounting for 25.59% of the total output; the third is Liaoning Province, with a aquaculture output of 470,900 tons in 2020, accounting for 18.01% of the total output.
China's cultured seaweed includes kelp, wakame, seaweed, river borage, sheepseed, etc., of which kelp production is the highest, reaching 1.6515 million tons in 2020, accounting for 63.15% of the total output. It is followed by Jiang li, with an output of 369,000 tons in 2020, accounting for 14.11% of the total output.
Related report: "2022-2027 China Edible Seaweed Planting Market Competition Situation and Industry Investment Potential Forecast Report" released by Huajing Industry Research Institute
3. Seaweed farming area
According to the China Fishery Statistics Yearbook, from 2013 to 2017, the area of seaweed cultivation in China showed an upward trend year by year, and by 2017, the area of seaweed cultivation in China rose to 145,300 hectares, an increase of 3.2% year-on-year. Subsequently, production began to decline slowly, with the area of kelp cultured in China falling to 141,800 ha by 2020, a decline of 0.35 million ha compared to 2017, a limited decline.
From the perspective of the aquaculture area of various provinces, the province with the highest aquaculture area in China in 2020 is Fujian Province, and the aquaculture area in 2020 is 44399 hectares, accounting for 31.31% of the total aquaculture area. It is followed by Jiangsu Province, with a culture area of 40 986 ha in 2020, accounting for 28.9% of the total aquaculture area.
Among the various seaweed species in China, the highest culture area is seaweed, with a culture area of 72339 hectares in 2020, accounting for 51.05% of the total culture area, followed by kelp, with a culture area of 46137 hectares in 2020, accounting for 32.54% of the total culture area.
Fourth, the application prospects of seaweed
As the most primitive life form, seaweed belongs to the lower plants, is the primary producer in the ocean, and has a close relationship with human life and economic development. Seaweed has the characteristics of fast growth, simple cell structure and strong environmental adaptability, which makes the application of seaweed very extensive, and because seaweed contains a large number of biologically active substances, nutrients and new materials that are lacking in modern organisms and terrestrial organisms, as well as some species of seaweed have a slender fiber form, which determines that the extraction ingredients of seaweed have important commercial development value in food, health care products, textiles and printing and dyeing. Seaweed fiber has also been developed and applied in food fiber and other fiber product related industries.
In addition to the application of seaweed extract in food, chemicals and other fields, the application of seaweed fatty acids in biomass fuels and the application of seaweed fibers in fiber composites are the two directions of large use of seaweed components, if the development and application of seaweed biodiesel and the development and application of seaweed fibers can be organically combined, the full component utilization of seaweed resources will be just around the corner.
Huajing Information Network is affiliated to Huajing Industry Research Institute, focusing on industrial economic intelligence and research in Greater China, and currently mainly provides products and services including traditional and emerging industry research, business plan, feasibility study, market research, special report, customized report, etc. It covers culture and sports, logistics and tourism, health and pension, biomedicine, energy and chemical industry, equipment manufacturing, automotive electronics and other fields, and also deeply studies emerging fields such as smart city, smart life, smart manufacturing, new energy, new materials, new consumption, new finance, artificial intelligence, and "Internet +".