?????7????????????????2?(???????? ??????)?“??”?7??????????2?????????,???,?6??30?7?????????????2?,?????????,??????????????,????2?15????????,???75%????

?????6???????30?????????????,?????????????????????????????? ??

?????????????,7??1??6?2?6??,????,?????????????????????????????????????????????????????????????????????????,???????????????????????????:?139.7????????????????????105.4???99.0???

??????????????7?????????????2??15??????0-20cm???????????????????,???75%?????????????,25%??,???????????????????

????,?,??,?????,??????????,?????????????????????

??????????????,???????????????10??,?,?????????,7???3??????????????6?????,???,????????????????;7?????????????????8??,?????????;9??13?,????????????????????,????14???????????????15????????????,??,??????????????,???

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

???:?????????? “???????”_????

?? ?????????? ?????75%??

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

2??????????

3????51??

4??????????

5?????

?????7????????????????2?(???????? ??????)?“??”?7??????????2?????????,???,?6??30?7?????????????2?,?????????,??????????????,????2?15????????,???75%????

?????6???????30?????????????,?????????????????????????????? ??

?????????????,7??1??6?2?6??,????,?????????????????????????????????????????????????????????????????????????,???????????????????????????:?139.7????????????????????105.4???99.0???

??????????????7?????????????2??15??????0-20cm???????????????????,???75%?????????????,25%??,???????????????????

????,?,??,?????,??????????,?????????????????????

??????????????,???????????????10??,?,?????????,7???3??????????????6?????,???,????????????????;7?????????????????8??,?????????;9??13?,????????????????????,????14???????????????15????????????,??,??????????????,???

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

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