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榆(yu)中縣南部二陰地區(qu)氣候冷涼濕潤，生產蔬菜(cai)病蟲害輕，農藥(yao)污染輕，具有生產無公害大(da)白菜(cai)得(de)天獨厚的(de)自(zi)然生態環(huan)境條件。榆(yu)中大(da)白菜(cai)具有葉球炮彈形、合抱、葉幫潔白、外葉深綠、中柱短(duan)、口感佳的(de)特點。

榆(yu)(yu)中(zhong)(zhong)(zhong)大(da)(da)白菜(cai)產區(qu)(qu)(qu)地(di)(di)(di)(di)(di)(di)(di)處黃土(tu)高(gao)(gao)(gao)原(yuan)、內(nei)(nei)(nei)蒙古高(gao)(gao)(gao)原(yuan)、青藏高(gao)(gao)(gao)原(yuan)交匯處的(de)黃土(tu)高(gao)(gao)(gao)原(yuan)，甘肅省中(zhong)(zhong)(zhong)部，屬(shu)蘭(lan)州市三(san)縣(xian)(xian)五區(qu)(qu)(qu)之一，在蘭(lan)州東郊，縣(xian)(xian)城(cheng)(cheng)距蘭(lan)州38公里(li)(li)，地(di)(di)(di)(di)(di)(di)(di)跨東經103°49′15"—104°34′40"，北(bei)(bei)緯35°34′20"—36°26′30"之間(jian)，縣(xian)(xian)境(jing)內(nei)(nei)(nei)南北(bei)(bei)長96.6公里(li)(li)，東西(xi)寬66.4公里(li)(li)，總面(mian)積(ji)3301.64平方(fang)公里(li)(li)，海拔高(gao)(gao)(gao)度1480—3670米之間(jian)。東接定西(xi)、會寧、靖遠縣(xian)(xian)，西(xi)以馬銜(xian)山(shan)為界與(yu)臨洮毗(pi)鄰，西(xi)靠七里(li)(li)河(he)區(qu)(qu)(qu)、城(cheng)(cheng)關區(qu)(qu)(qu)，北(bei)(bei)隔黃河(he)與(yu)皋蘭(lan)縣(xian)(xian)、白銀市相望。全(quan)縣(xian)(xian)轄8鎮15鄉，268個(ge)行政村，1619個(ge)村民(min)小組(zu)，共有42.6萬(wan)人(ren)，其中(zhong)(zhong)(zhong)農業(ye)人(ren)口38.8萬(wan)人(ren)。有漢、回、滿、東鄉、撒拉(la)等13個(ge)民(min)族(zu)，漢族(zu)占99％，耕地(di)(di)(di)(di)(di)(di)(di)面(mian)積(ji)106萬(wan)畝(mu)，其中(zhong)(zhong)(zhong)水澆地(di)(di)(di)(di)(di)(di)(di)36萬(wan)畝(mu)，保灌面(mian)積(ji)28萬(wan)畝(mu)，山(shan)旱地(di)(di)(di)(di)(di)(di)(di)70萬(wan)畝(mu)，占耕地(di)(di)(di)(di)(di)(di)(di)面(mian)積(ji)的(de)66％。榆(yu)(yu)中(zhong)(zhong)(zhong)縣(xian)(xian)地(di)(di)(di)(di)(di)(di)(di)勢(shi)較高(gao)(gao)(gao)，地(di)(di)(di)(di)(di)(di)(di)勢(shi)北(bei)(bei)高(gao)(gao)(gao)南低(di)，西(xi)高(gao)(gao)(gao)東低(di)，土(tu)壤深厚肥沃，屬(shu)半干旱、半濕(shi)潤(run)氣候(hou)區(qu)(qu)(qu)，河(he)谷地(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)水源(yuan)主(zhu)要(yao)(yao)是境(jing)內(nei)(nei)(nei)的(de)地(di)(di)(di)(di)(di)(di)(di)表水和地(di)(di)(di)(di)(di)(di)(di)下水，全(quan)縣(xian)(xian)從事蔬菜(cai)栽培的(de)農戶有6萬(wan)多戶，川塬(yuan)地(di)(di)(di)(di)(di)(di)(di)區(qu)(qu)(qu)主(zhu)要(yao)(yao)以地(di)(di)(di)(di)(di)(di)(di)下水資源(yuan)為主(zhu)，區(qu)(qu)(qu)域內(nei)(nei)(nei)無工業(ye)污染，為天然綠色食品(pin)生產區(qu)(qu)(qu)。目(mu)前大(da)(da)白菜(cai)栽培面(mian)積(ji)2萬(wan)畝(mu)，年(nian)產量8萬(wan)噸，至(zhi)2010年(nian)規(gui)劃面(mian)積(ji)發(fa)展達到2.5萬(wan)畝(mu)，年(nian)產榆(yu)(yu)中(zhong)(zhong)(zhong)大(da)(da)白菜(cai)10萬(wan)噸。