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　　春(chūn )天(tiān )一来，商都县农(nóng )牧和科技(jì )局局长庞学峰便(biàn )忙于入农(nóng )户、进(jìn )田头，落实低耗(hào )水(shuǐ )作物种植计划。“从前都是(shì )把(bǎ )旱地(dì )改(gǎi )良为(wéi )水地，提高(gāo )农(nóng )业单(dān )产。现在‘水(shuǐ )改旱(hàn )’，只为保护察(chá )汗淖尔湿地(dì )。”