The total area of the Poyang Lake region(including 11 towns and counties around lake)is close to 2 million hectares. The loss of soil and water becomes ever more serious

the ecological environment worse

and having an effect on construction of commodity grain bases

because of the influence of history

social and natural factors. The region includes Mt

land and high hill

low hill and hillock

hillock and plain

as well as zone of bank of lake. The control measures areas follows:(1 )to set a control system taking biological measures as the main

carrying out intensive farming

(2)to set a multiple system to be used repeatedly

(3)to set a system in technical service.