The types,structure and results of the dike-pond system in South China

Conclusion The dike-pond system is an excellent artificial ecological agriculture system. With its special structure, it has many advantages compared with the other agricultural productions. In the system, the fertilizer, water and soil can be readjusted automatically, and flood and drought calamities can be prevented, so that the inferior land can be made fertile. The residues from planting and from stock/poultry raising can be recycled within the system. It is the most important that the fertilizer and feeds can be satisfied from within the system. This in itself could be a kind of break-through in agricultural development. A new form of fish feed supply is created saving input of purchased fertilizer and feeds as well as enhancing the development of planting, fishery and animal husbandry.The system has been attracting more and more attention from home and abroad. It has spread quickly to some other parts of China, and has begun to be appear abroad. The system is suitable for the areas with resembling the Pearl River delta elsewhere in Asia, Africa and South America, especially for lowlying water-logged land which is normally reclaimed by constructing water conservancy projects. In the latter case, the cost of pumping water is high, but the system is generally unstable compared with the stable, high yield dike-pond system. So a brilliant future can be envisaged for the dike-pond system.