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屏南公社南五大队地处浙江西南海拔1,000—1,300米的高山区,是瓯江上游龙泉溪的发源地。全大队304亩耕地分布在17个山岗、13个山湾,70%是垅田,30%是排田。由于三面环山,地形复杂,山高林密,阴影遮田,日照短,气温低,湿度大,水土冷。过去缺乏排灌沟渠,串灌串排,田间长期渍水,一年一热单季稻,粮食产量低而不稳。在无产阶级文化大革命的推动下,从1970年开始,这个大队以大寨为榜样,狠抓农田基本建设,从“水改”入手,大搞改造冷水田群众运动。在整修地下排水渠道——涵洞的基础上,全面开掘避水沟和丘
Pingnan South Fifth Brigade is located in southwestern Zhejiang 1,000-1,300 meters above sea level in the mountains, is the birthplace of Longquan Creek upstream of Oujiang. The entire group of 304 mu of arable land is distributed in 17 hills and 13 mountain bays, 70% of which are Tian Tian and 30% of which are platoons. Due to the three sides of the mountain, the terrain is complex, the mountain is high and the forest is shaded, the shadow is hidden in the field, the sunshine is short, the temperature is low, the humidity is big, and the soil is cold. In the past, there was a lack of irrigation and drainage ditches, stringing and stringing, long-term waterlogging in the field, single-year hot rice in one year and low and unstable grain output. Driven by the Great Proletarian Cultural Revolution, starting from 1970, this unit took Dazhai as an example and paid close attention to the basic construction of farmland. Starting with the project of “water reform”, the brigade devoted major efforts to reforming the cold paddy mass movement. In the renovation of underground drainage channels - culverts, based on the full digging ditch and mound