The multifactor system is a method to research land use state and toevaluate soil resources

using the theory of ecology and economy and thesystimatic thoughts

taking the unity of the benefits of ecology

economyand society as a goal

based on enough investigation and data collection.Then

various kind of factors related to land use planning are divided intosix categaries

computed in order of grade

balanced in times

and optimizedto get solution in linear programming. Secondly

planning programmersare evaluated comprehensively

the optimal land use programmer is chosenand put into use. When used

returnning information is gotten

and itis corrected frequnetly until the final goal is realized.