春(chun)天一来，商都县农牧(mu)和科技局局长庞学峰便忙于(yu)入农(nong)户、进田头(tou)，落实低(di)耗(hao)水(shui)作物种(zhong)植计(ji)划。“从前(qian)都是把(ba)旱地改良为水(shui)地(di)，提高农业单(dan)产。现在‘水改旱(han)’，只为(wei)保(bao)护察(cha)汗淖尔湿(shi)地。”