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　　春天一来，商都(dōu )县农牧和科技局(jú )局长(zhǎng )庞学峰(fēng )便忙于入农户、进田头，落(luò )实低耗(hào )水(shuǐ )作物(wù )种植计划。“从前(qián )都(dōu )是把旱(hàn )地(dì )改良为水地，提高(gāo )农业单产。现(xiàn )在(zài )‘水改(gǎi )旱(hàn )’，只(zhī )为(wéi )保(bǎo )护(hù )察汗(hàn )淖尔(ěr )湿地。”