棒(bang)球場地的面層(ceng)(ceng)是由土(tu)層(ceng)(ceng)和草(cao)坪(ping)兩部(bu)分組成。見(jian)圖(tu)3.3.1及圖(tu)3.3.2兩種。其(qi)結構層(ceng)(ceng)因條件不(bu)同組成也有不(bu)同，如(ru)土(tu)質(zhi)層(ceng)(ceng)，天然草(cao)坪(ping)層(ceng)(ceng)，人造草坪層等。但(dan)在同一場地內應選用同一種草坪。

常見土(tu)(tu)質(zhi)場(chang)地結(jie)構，表面(mian)為(wei)(wei)經加工處(chu)理(li)過的(de)燒結(jie)土(tu)(tu)作面(mian)層(ceng)(ceng)(ceng)(ceng)(ceng)，基層(ceng)(ceng)(ceng)(ceng)(ceng)為(wei)(wei)砂礫或(huo)天(tian)(tian)然(ran)砂石見圖(tu)3.3.2.草(cao)坪場(chang)地結(jie)構:天(tian)(tian)然(ran)草(cao)坪主要由天(tian)(tian)然(ran)草(cao)苗、肥土(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)、砂性土(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)、礫石層(ceng)(ceng)(ceng)(ceng)(ceng)、土(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)組成(cheng)見圖(tu)3.3.2.人造(zao)草(cao)坪主要由人造(zao)草(cao)、瀝青混凝(ning)土(tu)(tu)基層(ceng)(ceng)(ceng)(ceng)(ceng)、無(wu)機結(jie)合(he)料底(di)(di)層(ceng)(ceng)(ceng)(ceng)(ceng)，或(huo)由人造(zao)草(cao)、水泥混凝(ning)土(tu)(tu)基層(ceng)(ceng)(ceng)(ceng)(ceng)、白灰土(tu)(tu)底(di)(di)層(ceng)(ceng)(ceng)(ceng)(ceng)等(deng)組成(cheng)見圖(tu)3.3.2