五六十年代,临沂市在岸堤、跋山、许家崖、陡山等大中型水库以下沂沭河中下游兴建了十几处引河灌区,以拦截库下区间径流和上游水库放水引水灌溉,同时负有向临沂电厂等一批骨干企业供水以及临沂城区的饮用水补源等任务。开始由于没有实行计划配水,上游灌区引的多,造成水源浪费,而下游灌区又时常无水可引,旱死稻苗,上下游争 In the 1950s and 1960s, more than a dozen of river diversion irrigation areas were constructed in the middle and lower reaches of the Yishu River, such as bank embankments, high hills, Xujiaya, steep hills and other large and medium-sized reservoirs in Linyi to intercept inter-basin runoff and water diversion and irrigation from upstream reservoirs, There are a number of key enterprises such as Linyi Power Plant water supply and drinking water in Linyi City, and other tasks. Since the beginning of the implementation of the plan does not allocate water, lead irrigation area cited more, resulting in waste of water, and often irrigated downstream irrigation areas can lead to dry rice seedlings, upstream and downstream dispute