春(chun)天一来，商都县农(nong)牧和科技(ji)局局长庞学峰便(bian)忙于(yu)入农(nong)户、进田头，落实(shi)低(di)耗水作物种植计划。“从前都是(shi)把旱(han)地(di)改良为(wei)水地，提高农(nong)业单(dan)产。现在‘水改旱’，只(zhi)为保护察汗(han)淖尔湿(shi)地(di)。”