春(chun)天一来，商都县农(nong)牧和科(ke)技(ji)局局长庞(pang)学(xue)峰(feng)便忙于入农(nong)户、进田(tian)头，落实低耗水作物种植计划。“从前都是把(ba)旱地(di)改良为水地(di)，提高农(nong)业单产。现(xian)在‘水(shui)改(gai)旱’，只为(wei)保护察汗(han)淖尔湿地。”