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一、辽河急需综合治理辽河发源于河北省七老图山脉之光头山,流经河北、内蒙、吉林和辽宁四省区,分别于营口、盘山注入渤海,全长1390km。辽宁省境内辽河干流长523km,由于汇集了清河、寇河、叶赫河,柴河、汛河、柳河、浑河、太子河、汤河、绕阳河等支流,其流域范围括及36个县区,流域面积达69162km~2,占全流域的30.2％。其中耕地3300万亩,林地2545万亩,牧地872万亩,苇田113万亩,荒地253万亩,而多年平均迳流量达110亿m~3,为全流域迳流量的70％。辽河流域的洪水主要由暴雨产生,洪期
I. Liaohe urgently needs comprehensive management Liaohe originated in the Mt. Laotou in the Qiluatu range of Hebei Province and flows through the four provinces and autonomous regions of Hebei, Inner Mongolia, Jilin and Liaoning provinces. It is injected into the Bohai Sea at Yingkou and Panshan, respectively, and the total length is 1390km. Liaoning Province, the Liaohe River trunk is 523km long, due to the collection of the Qinghe, Kou, Yehe, Chaihe, flood, Liuhe, Hunhe, Taizihe, Tanghe, County, the basin area of 69162km ~ 2, accounting for 30.2% of the basin. Among them, 33 million mu of arable land, 25.45 million mu of woodland, 87.2 million mu of grazing land, 1.13 million mu of reed fields and 2.53 million mu of uncultivated land have been cultivated, while the annual average flow rate reaches 11 billion m 3, accounting for 70% of the total flow rate. Floods in the Liaohe River Basin are mainly caused by heavy rains and floods