????:1???92?95?:??????6??

2??????

3?????

4???????

5???????????

?????8?????????????????????????6???????????????(???????????????? ???????????? ????????)?????????????????????????6??????,7??,±800?????????????????????????????“???????????????”??????????134.8??????????,??38%,?????

7????4????,?,???30.7?,??????????2?,??????????????????????????????,7??????????715.5??,????9.9%?

????,?,??????,??“?????”??,?????,????????430??????????????,???????20%?

±800?? ???? ???

???8???????????????????????????,???????????????,????????????????,????????????????????????“??”????????5??8????4????????,“??????????????????”??????????,????????5.39??????????????????,????2000????24?????????

±800????,???????????????,???????,?????GIS???????????????????8????6????,???????????????????????±800??8????????????????800???????

“????‘??’????????50%,?,??????”?????,????,??????????????????2??????????,????

???????????,????,???,????????????????????????????????????????,?????7?,??140??????????????,???????????,7???18.5?,??60%,???4436??????????,???????????????(???)

???:??????????