Abstract: This paper researches into the modeling of artificial complex ecosystem incorporating crop,fruit,forestand animal husbandry within a catchment area,which is a basic unit of low hilly region in south China.The model produces significant and comprehensive profits.Firstly,the environment for plant growth anddevelopment is improved by establishment of artificial and natural vegetations.Secondly,soil fertility de-terioration is controlled and rational cycling and transformation of soil nutrients are established with thecombination of agriculture and animal husbandry.Thirdly,soil resources are utilized more efficiently andeconomic benefit increases with the change of mono-management system to complex ecosystem.

Key words: GGE biplot, sugarcane, cane yield, sugar content.