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我国西北各省、区,沙漠面积辽闊,与沙漠按壤的广大綠洲边緣地带的农田,常年遭受风沙侵袭,重者造成掩埋农田,輕者导致土质恶化及农作物减产。特別是近年柴湾(固定沙丘区)破坏,风沙沿着青松、南洛、沙山舖、王家洛四条侵袭线向农区內侵;仅据初步統計,从1957年至今在民勤县薛百公社就有1,843亩农田被沙埋而弃耕。几年来我們对群众的防沙保产耕作經驗,进行了初步的总結,茲介紹如下:
In our country, all provinces, regions and deserts in the northwestern part of China have a vast area of desert land. Farmland on the edge of the vast oasis that is deserted by deserts has been hit by wind and sand all the year round, causing burial of farmland in severe cases and aggravation of soil quality and yield reduction of crops. Especially in recent years, Chai Wan (fixed sand dune area) was destroyed. Aeolian sand invaded the agricultural areas along the four invasion lines of Qingsong, Nanluo, Shasanpu and Wangjiaruo. According to preliminary statistics, from 1957 till now, 1,843 acres of farmland have been buried in the commune and abandoned. Over the past few years we have carried out a preliminary summary of the people’s experience in preventing desertification and preserving the tillage. We hereby introduce the following: