????:1????????60??:??????

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

?????:?????