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　　春天一来(lái )，商都(dōu )县(xiàn )农牧(mù )和科(kē )技局(jú )局长(zhǎng )庞学峰(fēng )便忙(máng )于入(rù )农户(hù )、进田头，落(luò )实(shí )低耗(hào )水作物种植计(jì )划。“从前都(dōu )是把旱(hàn )地改良为水(shuǐ )地，提高农(nóng )业(yè )单产。现在‘水改旱(hàn )’，只为保护察(chá )汗淖尔湿(shī )地。”