| "The Land Use/ Land Cover Change" ( LUCC) research is a front of international science research to follow the realm nowadays, is one of the core contentses of the global environment variety science concern, is also a domestic and international academic circles currently an across the course topic very and popularly. This thesis is in the extensive occupancy data and overall confidence people of the past foundation of research up, make use of the history geography, the geography information system GIS and covariances to learn the SAS analysis technique, more earnest, tallied up the four greatest error margins( the system error margin, area rows the error margin, the technique error margin and feels the error margin) of existent datas of the history land systematically, found sex ground put forward and will pay tax the unit conversion, school precise for can trust of the possibility path of the area unit, and with this completed the region of Su-Wan to expect after is clear, the pure middle divides the county farmland area of the reconstruction and the correction. Thus announced to public with the more thoroughly data clear and pure since Su the space that the land in the Wan region make use of cent difference and development cycle time. Then in analyzing the land in the typical model district ( south mountain area of Wan, the north follow sea of Su) to make use of the foundation of change the basic appearance, thorough study drive the dint mechanism problem.Also should see, the correction data exists the tremendous risk usually, it must satisfy the condition that many engrave at the same time. For this, this topic does not plan to dispute the reality of the absolute meaning, have no which kind of land investigate the covariance to differ completely and without any error. This topic follows always to contract the error margin and chase the error margin control as far as possible at certain request of the scope, and emphasize again and again for this:Any diagraphs ( statistics) all exist the error margin, the error margin can contract only, indelibility ;The credibility very big degree of the data depend on in to the control of the error margin, within the scope of a certain is to allow of, or high or low is all something to allow. Said up from this meaning, this topic do hard to rather had to constructive, reconstruction, the correction farmland data of cent County of empress is to withstand the examination of, and pushed forward research of this problem is steady-going forward a major step.The quest of this thesis not only is placed in the front of that realm to follow highly, but also cans keep on development to all have nowadays to the similar research and district certain of can the 资 draw lessons from the meaning. Certainly, be constrained by the restrict of data, technique and scholastic ability, " take care of a thing and miss the other" unavoidable, some not perfect place.will at any time the new substantial evidence result of basis makes an improvement.
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