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留得青山在 渠江万古流——长江上游渠江流域生态保护目击记

2017-08-28 19:01:09   新华网

新华社成都8月28日电 题:留得青山在 渠江万古流——长江上游渠江流域生态保护目击记

新华社记者任硌、陈健、吴文诩

25日清晨,四川达州万源市南部的黑宝山林场,夜雨初歇。阵阵鸟鸣,在一片浓绿的山谷中回荡。

“黑宝山林场面积有3万多亩,森林覆盖率99.9%以上,林场几十号人现在主要的工作就是管护森林。”万源市林业和园林局副局长李占槐说。

万源市地处四川省东北部,大巴山腹心地带,是中国南北气候的分界线和嘉陵江、汉江分水岭,素有“秦川锁钥”之称,享有“万宝之源”美誉,全市森林覆盖率63.5%。

“万源市在留住青山绿水上行动坚决,虽然每年都有商品林的采伐指标,但我们至少有5年没有审批过采伐了。全市5年来还累计向上争取林业建设资金4亿元,完成工程造林32万多亩,巩固退耕还林成果12万多亩。”万源市委书记吴晓勇说。

得益于长年的生态保护,与黑宝山相邻的花萼山国家级自然保护区享有“物种避难所”和“生物基因库”的美誉,2013年被列为国家自然遗产地,保护区面积达到482平方公里。

2012年至今,保护区共记录到野生兽类新纪录1种、鸟类新纪录26种,还记录到国家一级重点保护野生动物金雕成功繁殖的信息。

达陕高速经过万源,在大巴山腹地穿行,向南通往达州市区。放眼望去,蓝天白云下,黛色的群山连绵起伏。

发源于大巴山的后河,与高速公路相伴,奔涌在高山峡谷间。昔日分布在河道上的采砂场大多已不见了踪影,禁养区内的养殖场纷纷关闭。据万源市水务局负责人介绍,作为长江上游重要的生态屏障和水源涵养地,2013年以来,万源市已关闭河道采砂场64家。河长制全面推行,水环境持续改善,“青山绿水生态万源”已初步呈现。

后河在宣汉县汇入州河,州河流经达州市区后进入渠县境内,在三汇镇与巴河交汇,始称渠江。沿江而下,一路绿水青山。

渠江干流渠县段全长137.5公里,滋养着沿江17个乡镇的70余万人。拥有30万人口的渠县县城就在渠江边上。

距县城8公里的渠江上游八濛山松林口,是县城饮用水的取水口。2015年4月,总投资7000余万元的取水泵站和输水管道投入运行,目前日取水3万吨。监测数据表明,此处渠江水质优良,常年保持在一至二类水质,达标率100%,保障了县城群众饮水安全。

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