????:1???????????:?????????

2???????

3????????30??

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

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