老哈河的干流概况

2025-02-16 14:11:47
推荐回答(1个)
回答1:

老哈河,又称“老河”、或“土河”。秦至西晋称乌候秦水,南北朝称土河,隋朝时称“托纥臣水”,唐朝时称“土护真水”,辽金时始称“土”(即“土护真河”的简称)。金后期及元朝时又称“涂河”、“深河”。 明称老哈母林,清代始称老哈河(简称老河、哈河)。

老哈河发源地马盂山,也叫光头山,海拔1738.4米,为辽河源国家森林公园最高峰,属京东第二峰,为七老图山东南段,是七老图山的重要组成部分,被列为河北省非物质文化遗产的契丹始祖传说就源于此。主峰下的龙母洞常年滴水,四季恒温。

老哈河,发源于河北省平泉县的柳溪满族镇光秃山(光头山)东麓,为辽河源头,经五个乡镇:柳溪满族镇、七家岱满族乡、黄土梁子镇、北五十家子镇、平房满族蒙古族乡,由北五十家子镇的北五十家子村入内蒙古自治区的宁城县境内。境内流长57公里,流域面积为914.23平方公里。河流水量受降水影响,7~8月份降水时期,河流为汛期,其余为平水期。

老哈河,出河北省平泉县,在宁城县甸子乡七家入赤峰市境,流经宁城县、喀喇沁旗、赤峰市的元宝山区、松山区、敖汉旗、翁牛特旗6旗县区,于翁旗白音他拉苏木(原大兴乡,为翁牛特旗大兴农场所在地)海力吐东敖包出境。河流全长425公里(一说445公里 ),境内长368公里。河道总落差1215米,平均比降1.5‰,全部流域面积28,162.8平方公里,境内面积20,787.3平方公里。


老哈河,最后经翁牛特旗大兴乡海力吐东敖包进入通辽市,流经奈曼旗。在通辽市境内,自奈曼旗苇莲苏乡西奈曼营子入境,入境后的老哈河属于界河,河左岸为赤峰市翁牛特旗,右岸为奈曼旗。流经苇莲苏乡、平安地乡,境内河道比降2‰。苇莲苏、平安地两乡在该河引水灌溉。奈曼旗境内,老哈河入境水量约为5.23亿立方米。老哈河入境55公里(一说66.6公里)、西拉木伦河入境27公里后,两河在开鲁县苏家堡西辽河水利工程枢纽上游4.4公里处相汇,汇合后的河段与东辽河对称为西辽河,是辽河主流。

同时,老哈河,中游,出宁城县的四家村东,流经建平县西北边境,为建平县与内蒙古的宁城县、喀喇沁右旗、赤峰市区的界河。在建平县三家乡西胡素台村西入建平县境,然后向北流12公里,东岸经三家乡的五十家子村、太平庄乡的要道吐村,西岸经宁城县二十家子村、南山嘴村。之后,河流转西北流又折向东北流,至太平庄乡的幺二营子又转向北流,右纳东南来的海棠河。河水继续北流,至八家乡山根村,有汉长城从喀喇沁右旗甸子乡跨过老哈河入建平县境。再北流至黑水镇,转向西北流,至热水乡的下湾子屯,有燕长城从赤峰县美丽河乡的黑山头跨过老哈河进入建平县境。转西流复折东北流,经老官地乡后汇入英金河,继续东北流,于建平县最北端哈拉道口乡的大嘎岔村离建平县境进入内蒙古赤峰县境。在哈拉道口乡北、赤峰县境内又纳入蹦河,之后,老哈河曲向西北流,至内蒙古境内的大榆树附近汇入西辽河。流经建平县境段长118公里, 河段划分如下:
从河源至黑里河口为上游段。河段长57公里,平均比降7.4‰,境内主要支流为黑里河,流域面积653.16平方公里,属天然次生林区,植被良好。
从黑里河口至红山水库为中游段。河段长217公里,河道平均比降0.8‰,河槽宽浅,两岸比较开阔。流域地貌,除沿河两岸有3-5公里宽的河川平地外,大部为600-1000米的黄土丘陵及中低山区,植被盖度低,水土流失比较严重,河流含沙量及输沙量从上而下,随着支流汇入逐渐加大。
从红山水库至与西拉木伦河汇流处,为下游段。河段长151公里,河道比降0.9‰。两岸多为沙质丘陵台地。河道特点是从中游的宽阔平川进入宽窄不一的峡谷,且落差较集中。从红山水库至高力罕的峡谷段,比降大,落差集中,水能源丰富。自高力罕以下河谷逐渐宽展,两岸多为沙丘。平原。

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