From a broad perspective, artificial floating islands can be divided into two types: dry type and wet type. Those that are in contact with water and plants are called wet types, and those that are not in contact are called dry types.
1. Dry floating islands: Because plants do not come into contact with water, large woody and horticultural plants can be cultivated. Through the combination of different woody plants, they form a good habitat for birds and also beautify the landscape. .
2. Wet floating island: roughly divided into four generations of technology.
1) The first generation is mainly built with bamboo and geonet, which has the characteristics of low cost, poor effect, short life, and inability to maintain (Note: With the increase of labor costs, this method is currently cost-effective. There is no advantage)
2) The second generation is mainly foam or foam plus metal fixing products. It has the advantages of low cost and simple manufacturing process, but the strength is insufficient, the metal foam is easy to separate, and the foam It is white pollution and has basically no application at present (especially after the plastic restriction order)
3) The third generation, mainly PE products, generally 9-11 square meters, with floating bodies and doughnut-like objects Although the split planting basket overcomes the shortcomings of the above two generations, the quality and lifespan of floating island products produced by different manufacturers vary, and industry standards need to be established.
4) The fourth generation is mainly new material floating islands. Plant roots and floating island materials can be dissolved into one, and the material itself is a hollow tubular structure, which can form a good microdynamic circulation of the water body. The current representative product is an American product. Due to material patent barriers, it has no application in China, and the current price is very high.