中国唯一!河北"水下长城"像巨龙再露芳容
文章来源: 新华社 于
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▲中国唯一一段水下长城再露真容。(图/新华社提供)
中国的万里长城大部分都在北方崇山峻岭间蜿蜒起伏,但在河北省宽城满族自治县和迁西县交界附近的潘家口水库区域,却有一段长城像巨龙入水般隐没于湖底,形成了独一无二的「水下长城」奇观。
因降水量少,水位下降,潜入水下的长城,近日有3座墩台同时露出水面,与附近崇山峻岭间的长城遥相呼应,景色壮美,吸引了不少游客和摄影爱好者前来一睹真容。
建于500多年前的喜峰口、潘家口城堡,是中国明长城两个重要关隘,是当时中原通往北疆和东北边陲的咽喉要道。这一段长城集雄伟、奇险于一体,长约50公里,有21座墩台,宛如一条长龙蜿蜒盘旋在群峰峻岭之上,气势雄伟。
1975年,为将滦河水引入天津、唐山两地,中国启动了引滦入津、引滦入唐工程,修建了华北地区最大的水利枢纽工程——潘家口水库。水库建成蓄水后,高峡出平湖,因水位超过部分长城高度,喜峰口、潘家口城堡等雄伟的古长城从山脊上蜿蜒而下,犹如巨龙入水般钻入湖底,形成了长约50公里的独一无二「水下长城」奇观。
近年来,「水下长城」曾多次隐没、出现,成为当地降水量和水库水位的「晴雨表」。若天气干旱降水稀少、下游用水量增加,「水下长城」就露出真容,与前来蟠龙湖(即潘家口水库)游玩的游客见面;若降水丰沛,「巨龙」就会深潜水下,难睹芳容。
据水库附近的迁西县、宽城满族自治县气象和水务部门监测,今年以来,当地降水量少,水库水位下降,「水下长城」3座墩台同时浮出水面,比较罕见。古老城堡和连绵青山倒影在辽阔水面上,蔚为壮观。(新闻来源:新华社港台部)
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