棒球場地的面(mian)層(ceng)(ceng)是由土(tu)層(ceng)(ceng)和(he)草(cao)坪兩部(bu)分組成。見圖3.3.1及圖3.3.2兩種。其(qi)結構層(ceng)(ceng)因條件(jian)不同(tong)組成也有(you)不同(tong)，如土(tu)質層(ceng)(ceng)，天然草(cao)坪層(ceng)(ceng)，人造草坪層等。但在同一場地內應選用同一種草坪。

常見(jian)(jian)土(tu)(tu)質場(chang)地(di)結(jie)構，表面為經加(jia)工處理過(guo)的燒結(jie)土(tu)(tu)作面層(ceng)(ceng)(ceng)，基層(ceng)(ceng)(ceng)為砂(sha)礫或天(tian)然(ran)砂(sha)石見(jian)(jian)圖3.3.2.草(cao)(cao)坪(ping)場(chang)地(di)結(jie)構:天(tian)然(ran)草(cao)(cao)坪(ping)主要由(you)天(tian)然(ran)草(cao)(cao)苗、肥土(tu)(tu)層(ceng)(ceng)(ceng)、砂(sha)性土(tu)(tu)層(ceng)(ceng)(ceng)、礫石層(ceng)(ceng)(ceng)、土(tu)(tu)層(ceng)(ceng)(ceng)組成見(jian)(jian)圖3.3.2.人(ren)造(zao)(zao)草(cao)(cao)坪(ping)主要由(you)人(ren)造(zao)(zao)草(cao)(cao)、瀝青混(hun)凝土(tu)(tu)基層(ceng)(ceng)(ceng)、無機結(jie)合(he)料底(di)層(ceng)(ceng)(ceng)，或由(you)人(ren)造(zao)(zao)草(cao)(cao)、水泥混(hun)凝土(tu)(tu)基層(ceng)(ceng)(ceng)、白灰土(tu)(tu)底(di)層(ceng)(ceng)(ceng)等組成見(jian)(jian)圖3.3.2