陽山西洋菜,廣東省(sheng)清遠(yuan)市陽山縣特產,全(quan)國(guo)農產品地理標志(zhi)。
陽山縣屬南(nan)亞熱帶向(xiang)中亞熱帶過(guo)度(du)的季風氣候區(qu),春秋短而(er)夏日長(chang),晝夜溫(wen)差大(da),溫(wen)、光、水資源豐富,四(si)季分明(ming),氣候溫(wen)和(he),雨量充(chong)沛,適宜種(zhong)植西洋菜(cai)。陽山西洋菜(cai)植株一般長(chang)30-40厘米,莖(jing)粗(cu)約0.7厘米,莖(jing)橫切面近(jin)圓,莖(jing)節有(you)抽(chou)生須根;色澤青綠色,葉為奇數羽狀復葉,葉片呈卵形(xing)或近(jin)圓形(xing);質地脆嫩、多汁,清香爽口。
2018年7月3日,中華人民共和國(guo)農業(ye)農村部正式批準對“陽山(shan)西(xi)洋菜”實施農產(chan)品(pin)地(di)理標志(zhi)登記保護。
陽(yang)山(shan)西(xi)(xi)洋菜產(chan)自桂湘(xiang)贛粵褶(zhe)皺帶與桂粵隆(long)起交界地(di)帶廣東省西(xi)(xi)北部的清遠市陽(yang)山(shan)縣。保護區域范圍為陽(yang)山(shan)縣轄區域內(nei),主要包括陽(yang)城鎮(zhen)(zhen)、大崀鎮(zhen)(zhen)、小江(jiang)鎮(zhen)(zhen)、江(jiang)英鎮(zhen)(zhen)、秤架鄉、嶺(ling)背鎮(zhen)(zhen)、黎(li)埠鎮(zhen)(zhen)、七拱鎮(zhen)(zhen)、青(qing)蓮鎮(zhen)(zhen)等9個(鄉)鎮(zhen)(zhen),地(di)理坐標為東經112°22′01″-113°01′06″,北緯23°58′47″-24°55′52″之間。適宜種(zhong)植面積1200公(gong)(gong)頃,現有種(zhong)植面積700公(gong)(gong)頃,年產(chan)量6.3萬噸。
地(di)(di)(di)(di)(di)(di)(di)形(xing)(xing)地(di)(di)(di)(di)(di)(di)(di)貌:境內地(di)(di)(di)(di)(di)(di)(di)形(xing)(xing)復雜,山(shan)(shan)地(di)(di)(di)(di)(di)(di)(di)、丘陵、盆(pen)地(di)(di)(di)(di)(di)(di)(di)、河谷平(ping)(ping)(ping)原(yuan)交錯,其(qi)中山(shan)(shan)地(di)(di)(di)(di)(di)(di)(di)約占(zhan)全(quan)縣(xian)(xian)總(zong)面(mian)積(ji)的(de)90%,盆(pen)地(di)(di)(di)(di)(di)(di)(di)及(ji)沖(chong)積(ji)平(ping)(ping)(ping)原(yuan)約占(zhan)10%,海拔在(zai)50-1902米(mi)海拔,千米(mi)以上(shang)高(gao)山(shan)(shan)有(you)(you)150多座,屬(shu)于典型(xing)的(de)喀斯特地(di)(di)(di)(di)(di)(di)(di)貌,海拔溫(wen)(wen)(wen)(wen)(wen)差(cha)大(da),從海拔最(zui)低50米(mi)到最(zui)高(gao)的(de)1902米(mi),形(xing)(xing)成(cheng)垂直溫(wen)(wen)(wen)(wen)(wen)差(cha)氣(qi)(qi)候(hou)(hou),溫(wen)(wen)(wen)(wen)(wen)度(du)相差(cha)9-10℃,有(you)(you)“盛(sheng)夏(xia)無酷暑(shu),十里(li)不同天”的(de)氣(qi)(qi)候(hou)(hou)條(tiao)件。土(tu)(tu)壤(rang)條(tiao)件:陽山(shan)(shan)土(tu)(tu)壤(rang)類(lei)型(xing)豐富(fu),主(zhu)要有(you)(you)水(shui)(shui)(shui)(shui)稻土(tu)(tu)、山(shan)(shan)地(di)(di)(di)(di)(di)(di)(di)紅壤(rang)、山(shan)(shan)地(di)(di)(di)(di)(di)(di)(di)黃壤(rang)、高(gao)山(shan)(shan)草甸土(tu)(tu)、石灰土(tu)(tu)、紫色土(tu)(tu)、潮沙泥土(tu)(tu)。根據土(tu)(tu)壤(rang)普(pu)查,陽山(shan)(shan)土(tu)(tu)壤(rang)養分(fen)(fen)含(han)量(liang)(liang),除速效鉀含(han)量(liang)(liang)較低外,其(qi)他養分(fen)(fen)含(han)量(liang)(liang)較豐富(fu)。其(qi)中有(you)(you)效磷含(han)量(liang)(liang)平(ping)(ping)(ping)均(jun)32.6mg/kg,變(bian)幅5.1-149.4mg/kg之(zhi)間,速效鉀含(han)量(liang)(liang)71mg/kg,變(bian)幅在(zai)14-397mg/kg之(zhi)間,Ph值變(bian)幅范圍(wei)4.40-7.9。水(shui)(shui)(shui)(shui)文情(qing)(qing)況(kuang):陽山(shan)(shan)縣(xian)(xian)水(shui)(shui)(shui)(shui)資源豐富(fu)。一是(shi)地(di)(di)(di)(di)(di)(di)(di)表水(shui)(shui)(shui)(shui)充(chong)裕,屬(shu)珠江流(liu)域(yu)北江水(shui)(shui)(shui)(shui)系,境內小河流(liu)眾多,集雨(yu)面(mian)積(ji)100平(ping)(ping)(ping)方(fang)(fang)公里(li)以上(shang)的(de)主(zhu)、支(zhi)河流(liu)有(you)(you)13條(tiao),流(liu)大(da)多屬(shu)山(shan)(shan)區(qu)型(xing),縣(xian)(xian)境年(nian)(nian)均(jun)徑(jing)流(liu)量(liang)(liang)79.08億立(li)(li)(li)方(fang)(fang)米(mi)(不含(han)過境客(ke)水(shui)(shui)(shui)(shui)),過境客(ke)水(shui)(shui)(shui)(shui)徑(jing)流(liu)量(liang)(liang)38.6億立(li)(li)(li)方(fang)(fang)米(mi)。已建(jian)中型(xing)水(shui)(shui)(shui)(shui)庫(ku)3宗(zong)、小(一)型(xing)水(shui)(shui)(shui)(shui)庫(ku)11宗(zong)、小(二(er))型(xing)水(shui)(shui)(shui)(shui)庫(ku)38宗(zong),較大(da)的(de)塘壩(ba)129宗(zong),總(zong)控制集雨(yu)面(mian)積(ji)252.29平(ping)(ping)(ping)方(fang)(fang)公里(li),總(zong)庫(ku)容1.096億立(li)(li)(li)方(fang)(fang)米(mi),農業灌溉(gai)用水(shui)(shui)(shui)(shui)大(da)部(bu)分(fen)(fen)用水(shui)(shui)(shui)(shui)庫(ku)水(shui)(shui)(shui)(shui)灌溉(gai)。二(er)是(shi)地(di)(di)(di)(di)(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui)較多。地(di)(di)(di)(di)(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui)有(you)(you)冷(leng)泉、溫(wen)(wen)(wen)(wen)(wen)泉。冷(leng)泉也稱巖(yan)洞水(shui)(shui)(shui)(shui)(多屬(shu)礦泉水(shui)(shui)(shui)(shui))遍布全(quan)縣(xian)(xian)。按測流(liu)法(fa)計算(suan)基巖(yan)裂間隙水(shui)(shui)(shui)(shui)和巖(yan)溶水(shui)(shui)(shui)(shui)天然排泄量(liang)(liang)計,平(ping)(ping)(ping)均(jun)為428.26萬立(li)(li)(li)方(fang)(fang)米(mi),相當于15.63億立(li)(li)(li)方(fang)(fang)米(mi)/年(nian)(nian)。這些地(di)(di)(di)(di)(di)(di)(di)下(xia)水(shui)(shui)(shui)(shui),有(you)(you)效地(di)(di)(di)(di)(di)(di)(di)補充(chong)了縣(xian)(xian)內部(bu)分(fen)(fen)地(di)(di)(di)(di)(di)(di)(di)區(qu)耕地(di)(di)(di)(di)(di)(di)(di)的(de)灌溉(gai)。氣(qi)(qi)候(hou)(hou)情(qing)(qing)況(kuang):本(ben)縣(xian)(xian)屬(shu)南亞(ya)(ya)熱帶向中亞(ya)(ya)熱帶過度(du)的(de)季(ji)風(feng)氣(qi)(qi)候(hou)(hou)區(qu),春秋(qiu)短而(er)夏(xia)日長(chang),晝夜溫(wen)(wen)(wen)(wen)(wen)差(cha)大(da),溫(wen)(wen)(wen)(wen)(wen)、光(guang)、水(shui)(shui)(shui)(shui)資源豐富(fu),四(si)季(ji)分(fen)(fen)明,氣(qi)(qi)候(hou)(hou)溫(wen)(wen)(wen)(wen)(wen)和,雨(yu)量(liang)(liang)充(chong)沛。域(yu)內山(shan)(shan)地(di)(di)(di)(di)(di)(di)(di)比平(ping)(ping)(ping)原(yuan)氣(qi)(qi)溫(wen)(wen)(wen)(wen)(wen)低、水(shui)(shui)(shui)(shui)熱時空分(fen)(fen)布不均(jun),形(xing)(xing)成(cheng)明顯山(shan)(shan)區(qu)立(li)(li)(li)體氣(qi)(qi)候(hou)(hou)。全(quan)年(nian)(nian)最(zui)高(gao)氣(qi)(qi)溫(wen)(wen)(wen)(wen)(wen)在(zai)7-8月(yue),平(ping)(ping)(ping)均(jun)氣(qi)(qi)溫(wen)(wen)(wen)(wen)(wen)23℃-28.50℃,極端最(zui)高(gao)氣(qi)(qi)溫(wen)(wen)(wen)(wen)(wen)35℃-41℃。最(zui)低氣(qi)(qi)溫(wen)(wen)(wen)(wen)(wen)在(zai)1-2月(yue),極度(du)最(zui)低溫(wen)(wen)(wen)(wen)(wen)度(du)為-8℃-3.2℃,無霜期為270-310天。光(guang)能豐裕,年(nian)(nian)平(ping)(ping)(ping)均(jun)日照(zhao)總(zong)時數為1568.3小時,平(ping)(ping)(ping)均(jun)年(nian)(nian)降雨(yu)總(zong)量(liang)(liang)為1500-2200毫米(mi),雨(yu)季(ji)主(zhu)要在(zai)4-6月(yue),其(qi)次是(shi)7-9月(yue)。
外在感官特(te)征:陽(yang)山西洋(yang)菜(cai)(cai)植株(zhu)一般長30-40cm,莖(jing)粗約0.7cm,莖(jing)橫切面(mian)近圓(yuan),莖(jing)節(jie)有抽生須根;色(se)澤(ze)青(qing)綠色(se),葉(xie)為奇(qi)數羽狀復葉(xie),葉(xie)片(pian)呈卵(luan)形或近圓(yuan)形;質地脆嫩、多汁,清香爽口(kou)。內在品(pin)(pin)質指標:經檢測,陽(yang)山西洋(yang)菜(cai)(cai)含(han)(han)粗纖(xian)維(wei)(wei)≤1.2%,每百克含(han)(han)維(wei)(wei)生素C37-55毫克,除此之外,還富(fu)含(han)(han)鐵、鋅、含(han)(han)鈣、含(han)(han)磷等營(ying)養成分(fen)。安全要(yao)求(qiu):陽(yang)山西洋(yang)菜(cai)(cai)產(chan)地環境(jing)要(yao)符合無公(gong)害食(shi)品(pin)(pin)蔬菜(cai)(cai)類產(chan)品(pin)(pin)產(chan)地環境(jing)條件的要(yao)求(qiu),產(chan)品(pin)(pin)質量符合無公(gong)害農產(chan)品(pin)(pin)標準要(yao)求(qiu)。