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呼倫貝爾湖特產
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呼倫貝爾地理環境
作者:  來源: //tjshuangyi.cn/mzwh/n625.html   發布時間:2015-11-19

位(wei)置境域


  呼倫貝爾(er)市地處東經115°31′~126°04′、北(bei)緯47°05′~53°20′。東西630公里、南(nan)北(bei)700公里,總面積25.3萬平方公里,占自(zi)治區面積的21.4%,相(xiang)當于山東、江(jiang)(jiang)蘇(su)兩省面積的總和。南(nan)部(bu)與(yu)興安盟相(xiang)連,東部(bu)以嫩江(jiang)(jiang)為界(jie)(jie)與(yu)黑龍江(jiang)(jiang)省為鄰,北(bei)和西北(bei)部(bu)以額爾(er)古納河為界(jie)(jie)與(yu)俄羅斯接(jie)壤(rang),西和西南(nan)部(bu)同蒙古國交界(jie)(jie)。邊(bian)境線總長1723.82公里,其中中俄邊(bian)界(jie)(jie)1048公里(不含未定界(jie)(jie)部(bu)分),中蒙邊(bian)界(jie)(jie)675.82公里。[7]

地(di)形特(te)點


  呼倫貝(bei)爾市西部位于內蒙(meng)古高(gao)原(yuan)東(dong)(dong)北部,北部與南部被大興(xing)安嶺南北直(zhi)貫境內。東(dong)(dong)部為大興(xing)安嶺東(dong)(dong)麓,東(dong)(dong)北平原(yuan)——松嫩平原(yuan)邊緣。地形總(zong)體特點為:西高(gao)東(dong)(dong)低。地勢分(fen)布呈由西到東(dong)(dong)地勢緩慢過渡。[8]

氣(qi)候特點


  呼倫貝爾地(di)(di)處溫(wen)(wen)(wen)(wen)帶(dai)(dai)北部(bu)(bu),大(da)(da)(da)陸性(xing)(xing)氣(qi)(qi)(qi)候(hou)顯著。吉文(wen)-雅(ya)魯-柴河-白狼-伊爾施-免渡河-黑山頭-線屬于寒溫(wen)(wen)(wen)(wen)帶(dai)(dai)大(da)(da)(da)陸性(xing)(xing)季風(feng)氣(qi)(qi)(qi)候(hou),其他(ta)屬于中溫(wen)(wen)(wen)(wen)帶(dai)(dai)大(da)(da)(da)陸性(xing)(xing)氣(qi)(qi)(qi)候(hou)。氣(qi)(qi)(qi)候(hou)特點是冬(dong)季寒冷(leng)漫長,夏(xia)季溫(wen)(wen)(wen)(wen)涼短促(cu),春季干(gan)燥(zao)風(feng)大(da)(da)(da),秋(qiu)季氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)驟(zou)降(jiang)霜凍早。熱(re)量不(bu)足,晝(zhou)夜溫(wen)(wen)(wen)(wen)差(cha)大(da)(da)(da),有效積溫(wen)(wen)(wen)(wen)利用率(lv)高,無霜期短,日照豐富(fu),降(jiang)水(shui)(shui)(shui)量差(cha)異(yi)大(da)(da)(da),降(jiang)水(shui)(shui)(shui)期多集(ji)中在(zai)(zai)7-8月(yue)(yue)。全(quan)(quan)年(nian)(nian)氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)冬(dong)冷(leng)夏(xia)暖,溫(wen)(wen)(wen)(wen)度較差(cha)大(da)(da)(da)。全(quan)(quan)市(shi)大(da)(da)(da)部(bu)(bu)分(fen)地(di)(di)區(qu)(qu)(qu)年(nian)(nian)平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)在(zai)(zai)O℃以下,只有大(da)(da)(da)興(xing)安嶺以東和嶺西(xi)少部(bu)(bu)分(fen)地(di)(di)區(qu)(qu)(qu)在(zai)(zai)O℃以上,嶺東農區(qu)(qu)(qu)年(nian)(nian)平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)在(zai)(zai)1.3-2.4℃之間(jian),大(da)(da)(da)興(xing)安嶺地(di)(di)區(qu)(qu)(qu)為(wei)(wei)-2.O—5.3℃,牧區(qu)(qu)(qu)為(wei)(wei)0.4—3.O℃.最(zui)冷(leng)月(yue)(yue)(1月(yue)(yue))平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)在(zai)(zai)-18--30℃之間(jian),最(zui)熱(re)月(yue)(yue)(7月(yue)(yue))平均(jun)氣(qi)(qi)(qi)溫(wen)(wen)(wen)(wen)在(zai)(zai)16-21℃之間(jian)。降(jiang)水(shui)(shui)(shui)量變率(lv)大(da)(da)(da),分(fen)布不(bu)均(jun)勻,年(nian)(nian)際變化也(ye)大(da)(da)(da)。冬(dong)春兩(liang)季各地(di)(di)降(jiang)水(shui)(shui)(shui)一般(ban)為(wei)(wei)40-80毫(hao)米(mi),占(zhan)年(nian)(nian)降(jiang)水(shui)(shui)(shui)量15%左右。夏(xia)季降(jiang)水(shui)(shui)(shui)量大(da)(da)(da)而集(ji)中,大(da)(da)(da)部(bu)(bu)地(di)(di)區(qu)(qu)(qu)為(wei)(wei)200--300毫(hao)米(mi),占(zhan)年(nian)(nian)降(jiang)水(shui)(shui)(shui)量65-70%,秋(qiu)季降(jiang)水(shui)(shui)(shui)量相應減少,總(zong)的分(fen)部(bu)(bu)趨勢是:農區(qu)(qu)(qu)60--80毫(hao)米(mi),林(lin)區(qu)(qu)(qu)50--80毫(hao)米(mi),牧區(qu)(qu)(qu)30--50毫(hao)米(mi)。