????:1??????????:?????95??98??

2??????????

3???????vx????

4???????vx

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??????????,?????(??????)

????:??