Benefit analysis of orchard ecosystem in the Three Gorges Reservoir--A case study from‘Huangxin’immigrant industry area of high efficiency ecological agriculture in Chongqing

The structure and function of orchard ecosystem in Three Gorges Reservoir are stated，showing that the distribution discipline and community makeup of fruit in Thre Gorges Reservoir are relatively reasonable，but the area proportion and the breeding frame of fruit species are not reasonable with the need of modem fruit industry．The strategies ，including fruit community makeup and breeding frame and area proportion，are suggested as wel1．