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一.產品介紹

據《漢(han)(han)(han)中(zhong)(zhong)地(di)理(li)志(zhi)》、《漢(han)(han)(han)中(zhong)(zhong)地(di)區志(zhi)》記載(zai)，早在新石器時代，漢(han)(han)(han)中(zhong)(zhong)已種(zhong)植水(shui)稻(dao)(dao)。西(xi)(xi)漢(han)(han)(han)簫何筑堰，三國孔明屯(tun)墾，皆以種(zhong)稻(dao)(dao)儲谷武備。另據《西(xi)(xi)鄉(xiang)縣志(zhi)》記載(zai)，唐《地(di)理(li)志(zhi)》有“西(xi)(xi)鄉(xiang)稻(dao)(dao)米是京兆(zhao)貢(gong)米源地(di)之(zhi)一”的(de)描述(shu)，說明漢(han)(han)(han)中(zhong)(zhong)大(da)米品質(zhi)優(you)良。著名氣象學家竺可楨先生和(he)袁隆平院士對漢(han)(han)(han)中(zhong)(zhong)水(shui)稻(dao)(dao)生產和(he)優(you)質(zhi)米產業發展進行了高(gao)度評價。以漢(han)(han)(han)中(zhong)(zhong)大(da)米為(wei)原料制作的(de)漢(han)(han)(han)中(zhong)(zhong)米（面）皮，相傳始于西(xi)(xi)漢(han)(han)(han)初年，現(xian)已成為(wei)全國知(zhi)名特色小(xiao)吃。

二.自然生態環境和人文歷史因素

漢(han)(han)(han)(han)中(zhong)(zhong)地處我(wo)(wo)國南(nan)(nan)北氣(qi)(qi)候(hou)過渡帶，屬北亞熱(re)帶季風氣(qi)(qi)候(hou)類型(xing)，被譽為(wei)“地球上(shang)同(tong)緯度(du)(du)生態條件(jian)最好(hao)的(de)(de)地方(fang)”，森林覆(fu)蓋率58.18%，是四大“國寶”大熊(xiong)貓(mao)、朱鹮、金絲猴、羚牛的(de)(de)棲息(xi)生長(chang)地。漢(han)(han)(han)(han)中(zhong)(zhong)北有(you)秦(qin)嶺(ling)屏障，寒流不(bu)易(yi)侵入(ru)，南(nan)(nan)有(you)大巴山攔截南(nan)(nan)方(fang)暖濕(shi)氣(qi)(qi)流，盆地效應凸顯，冬(dong)無(wu)嚴(yan)寒，夏無(wu)酷暑，四季分明(ming)，雨熱(re)同(tong)季。年(nian)降(jiang)雨量800-1200 mm，年(nian)日照時(shi)數1300-1800小(xiao)時(shi)；年(nian)均(jun)氣(qi)(qi)溫12-14℃，≥10℃活動(dong)積(ji)(ji)溫4200℃-4480℃，其(qi)中(zhong)(zhong)水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)生長(chang)的(de)(de)4月至(zhi)(zhi)9月活動(dong)積(ji)(ji)溫占(zhan)全年(nian)的(de)(de)87.2%。漢(han)(han)(han)(han)中(zhong)(zhong)水(shui)(shui)(shui)資(zi)源(yuan)豐富，水(shui)(shui)(shui)質潔凈，是國家南(nan)(nan)水(shui)(shui)(shui)北調中(zhong)(zhong)線工(gong)程重(zhong)要(yao)(yao)水(shui)(shui)(shui)源(yuan)涵養區(qu)和供京水(shui)(shui)(shui)源(yuan)地，東西橫(heng)貫的(de)(de)漢(han)(han)(han)(han)江水(shui)(shui)(shui)系和南(nan)(nan)北縱(zong)穿的(de)(de)嘉陵江水(shui)(shui)(shui)系年(nian)平均(jun)徑流144.1億立方(fang)米。建(jian)于兩(liang)千(qian)多(duo)(duo)年(nian)前的(de)(de)山河(he)、五門(men)(men)堰(yan)、民國時(shi)期(qi)的(de)(de)漢(han)(han)(han)(han)惠(hui)(hui)、褒惠(hui)(hui)、湑惠(hui)(hui)三大干渠(qu)、建(jian)國后(hou)的(de)(de)冷惠(hui)(hui)渠(qu)、石門(men)(men)水(shui)(shui)(shui)庫、紅寺壩水(shui)(shui)(shui)庫、南(nan)(nan)沙河(he)水(shui)(shui)(shui)庫等引、蓄水(shui)(shui)(shui)工(gong)程，在(zai)水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)灌(guan)溉上(shang)發揮(hui)著(zhu)重(zhong)要(yao)(yao)的(de)(de)作(zuo)用(yong)。水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)種植區(qu)渠(qu)系配套，四通八達，生產中(zhong)(zhong)保灌(guan)面積(ji)(ji)90%以上(shang)。稻(dao)(dao)(dao)(dao)田土壤類型(xing)以潴育(yu)性(xing)(xing)水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)土和淹育(yu)性(xing)(xing)水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)土為(wei)主(zhu)，熟(shu)化(hua)程度(du)(du)高(gao)(gao)，有(you)機質含量1.65-4.31%，肥(fei)力高(gao)(gao)，保水(shui)(shui)(shui)保肥(fei)性(xing)(xing)強。漢(han)(han)(han)(han)中(zhong)(zhong)是我(wo)(wo)國同(tong)一緯度(du)(du)遲熟(shu)中(zhong)(zhong)秈水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)種植的(de)(de)最北沿，屬優質秈稻(dao)(dao)(dao)(dao)最佳生態區(qu)之(zhi)一。水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)生長(chang)發育(yu)、灌(guan)漿結實期(qi)氣(qi)(qi)溫多(duo)(duo)在(zai)23-30度(du)(du)之(zhi)間，既無(wu)南(nan)(nan)方(fang)稻(dao)(dao)(dao)(dao)區(qu)的(de)(de)高(gao)(gao)溫危害(hai)，又無(wu)北方(fang)稻(dao)(dao)(dao)(dao)區(qu)的(de)(de)低溫影響，尤其(qi)是8月中(zhong)(zhong)旬(xun)(xun)至(zhi)(zhi)9月上(shang)旬(xun)(xun)水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)灌(guan)漿結實期(qi)，旬(xun)(xun)平均(jun)氣(qi)(qi)溫21.8-24.9℃，晝夜溫差7.9-8.6℃，溫度(du)(du)適宜，晝夜溫差大，水(shui)(shui)(shui)稻(dao)(dao)(dao)(dao)灌(guan)漿速度(du)(du)平穩，消(xiao)耗少，累(lei)積(ji)(ji)多(duo)(duo)，利(li)于高(gao)(gao)產優質。

三.地域范圍

漢(han)(han)中(zhong)位于(yu)陜(shan)西(xi)省西(xi)南(nan)部，北依秦(qin)嶺，南(nan)屏巴(ba)山(shan)，中(zhong)部是漢(han)(han)中(zhong)盆地(di)(di)。水稻是漢(han)(han)中(zhong)最主要的(de)糧食作(zuo)物，種植區(qu)主要集中(zhong)在海(hai)拔(ba)450-750米的(de)平壩(ba)、丘陵和淺(qian)山(shan)區(qu)。漢(han)(han)中(zhong)大米農產品(pin)地(di)(di)理標志地(di)(di)域保護范圍(wei)為漢(han)(han)中(zhong)市行政(zheng)所轄漢(han)(han)臺區(qu)、南(nan)鄭(zheng)縣(xian)(xian)(xian)、城(cheng)固縣(xian)(xian)(xian)、洋縣(xian)(xian)(xian)、西(xi)鄉縣(xian)(xian)(xian)、勉縣(xian)(xian)(xian)、寧(ning)強縣(xian)(xian)(xian)、略陽縣(xian)(xian)(xian)、鎮(zhen)巴(ba)縣(xian)(xian)(xian)、留(liu)壩(ba)縣(xian)(xian)(xian)、佛(fo)坪(ping)縣(xian)(xian)(xian)10縣(xian)(xian)(xian)1區(qu)175個鎮(zhen)。地(di)(di)理坐標為東(dong)經(jing)105°30′-108°16′，北緯32°08′- 33°53′，東(dong)到(dao)鎮(zhen)巴(ba)縣(xian)(xian)(xian)巴(ba)廟鎮(zhen)，南(nan)到(dao)鎮(zhen)巴(ba)縣(xian)(xian)(xian)鹽(yan)場鎮(zhen)，西(xi)到(dao)寧(ning)強縣(xian)(xian)(xian)青木川鎮(zhen)，北到(dao)留(liu)壩(ba)縣(xian)(xian)(xian)江口鎮(zhen)。總生產面積10萬公頃(qing)（150萬畝），年產稻谷(gu)65.02萬噸。

四.產品品質(zhi)特(te)性特(te)征

1、外在感觀特征：漢中(zhong)大米(mi)為(wei)秈米(mi)，加工品質好，其中(zhong)出(chu)糙率(lv)為(wei)75-79%，整(zheng)精米(mi)率(lv)52-56%，堊白粒(li)(li)(li)率(lv)≤20%。漢中(zhong)大米(mi)米(mi)粒(li)(li)(li)細長(chang)均(jun)勻，色澤清白，晶瑩剔透，光滑油潤，氣味純正；煮粥漿汁如乳，味甘醇香；蒸飯油亮溢香，柔韌不(bu)粘；冷飯成(cheng)粒(li)(li)(li)性好，不(bu)回生。

2、內在(zai)品質指標：漢中大米營(ying)養豐富(fu)均衡，其中蛋(dan)白質含(han)量不低于6.0g/100g，脂(zhi)肪含(han)量0.3-1.5g/100g，氨基酸總量不低于5.8g/100g，直鏈(lian)淀粉(fen)14.0-20.0g/100g，硒含(han)量不低于2.0μg/100g。

3、安全(quan)(quan)要(yao)求：漢中(zhong)大(da)米標志使用(yong)人其生產(chan)基地和大(da)米產(chan)品需(xu)達到(dao)無公害產(chan)地和產(chan)品要(yao)求，批次抽(chou)檢符合農辦質〔2015〕4號文大(da)米產(chan)品質量安全(quan)(quan)要(yao)求。