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1 前言我场在1975—1978年期间。对平原耕作区进行了大规模河网化治理。先后开挖了长约23km的田间排水沟工程。使田间排水系统配套成网。该工程自竣工以来。不但有利于地表水排除。也加快了地下水的排除。使我场几万亩农田连年获得大丰收,12年共为国家增产粮食3880万斤,年平均增产240万斤,共获得经济效益6480万元。年平均效益为540万元。但经过十余年的使用,淤积严重。沟底高程由原来的12.8m,提高到现在的13.4m,十年共淤高0.6m。使该工程效益渐渐有所
1 Preface My field in the 1975-1978 period. Large-scale river network management of the plain farming area. Excavation has a length of about 23km field drainage project. Field drainage system supporting network. Since the completion of the project. Not only conducive to surface water exclusion. Also accelerated the exclusion of groundwater. So that my field tens of thousands of acres of farmland harvest year after year, 12 years a total of 38.8 million kilograms of grain production for the country, the average annual increase of 2.4 million kilograms, a total of 64.8 million yuan in economic benefits. The average annual benefit of 5.4 million yuan. However, after more than ten years of use, siltation is serious. Ditch ditch elevation from the original 12.8m, increased to the present 13.4m, ten years a total of high silt 0.6m. Make the project benefit gradually