Model Of Precision Agriculture Development Based On GIS

Precision agriculture can be defined narrowly as the precision crop and plant cultivation,and broadly as the precision plant cultivation, precision forestry,the precision livestock husbandry,the precision sideline(collect the wilding,hunt the wild beast and the farmer cottage industries to produce)and the precision fisheries.Precision agriculture is big agricultural system engineering,including many disciplines such as the systematology,the informatics,the remote sensing,the computer sciences,the agriculture science,the engineering science,the biology, the management science,the policy-making studies,and so on.Its basic connotation is according to the agricultural product growing environment form,regulate the devotion to the agricultural product,on the other hand check the productivity space and the property of the pure agricultural product,on the other hand namely,make sure the production target of the agricultural product.The aim is "system examining,excellent turn the formulation,technique construction,science management",transferring the agriculture productivity,with minimal or the most economical devotion attains the equal income or higher incomes,and improve the environment, utilize the land and each kind of agriculture resources efficiently, obtaining the economic profit,social profit and ecosystem profit.The article has researched the four contents below.(1)Precision agriculture theories,the detailed concept,theories foundation,technique foundation of the precision agriculture.(2)Studied the precise agriculture technique system,the concrete research includes the selection:GPS,remote sensing,low altitude remote sensing,GIS,the farmland girding partition and the sampling point selecting,farm machinery navigating and the control,the yield distributes diagram and the artificial intelligence techniques in precision agriculture.(3)According to the precise agriculture mode of the Jianghan plain design,including precision cultivation mode design and the precise marine products mode design.Precision cultivation mode researches the environment analysis and prepares to work,the yield data obtain with and become diagram, other farmland information to obtain with and become the diagram,make policy to support the born farm crop of system management prescription diagram, carry out to VRT and result analyzes.The marine products industry mode researches the marine products environment analysis,expected to preparing to work before,the marine products farming support system,the marine products farming analyzing system,the marine products farming carried out system and the marine products farming evaluations,Accomplish the feasibility analyzing of precision agriculture in Jianghan plain.(4)Existent problem of precision agriculture and direction development from now on.Currently the precision agriculture of the our country still stays around to demonstrate the area research stage,because the technology of information and economic condition still can not reach the big area expansion stage,but it does not represent we can't carry out the precise agriculture in several decades of future.Jianghan plain is the " land of plenty" and the important crop area,the agriculture background is very good, but the agriculture productivity growth is slow-moving in the last decades, the large quantity labor force leaves the agriculture to go into the city to work,turning in great quantities fatty caused the farmland quality of the partial region deteriorate break with ecosystem,because the not scientific devotion of the agrochemical directly,so at Jianghan plain carries on the precision agriculture research to have the necessity very much.