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　　春天一来，商都县(xiàn )农牧和科(kē )技(jì )局局长庞学峰便(biàn )忙(máng )于(yú )入(rù )农户、进(jìn )田头，落实低耗(hào )水(shuǐ )作物种(zhǒng )植(zhí )计(jì )划。“从(cóng )前(qián )都是把旱(hàn )地改良为(wéi )水地(dì )，提高(gāo )农业(yè )单产。现在‘水改(gǎi )旱(hàn )’，只为保(bǎo )护察汗淖尔(ěr )湿地。”