如今(jīn )燕麦草、小(xiǎo )杂(zá )粮、覆(fù )膜马铃薯等耐(nài )旱(hàn )作物“当(dāng )家”,以水(shuǐ )定粮(liáng )改变了察汗淖尔湿地周(zhōu )边农业形态。庞学峰给记者算了(le )一笔账:种(zhǒng )植燕麦草,只搞(gǎo )“雨养”农业,不使(shǐ )用(yòng )地下水。成(chéng )本下(xià )降(jiàng ),加上轮作和(hé )“水改旱”补(bǔ )贴,亩效益可(kě )比种甜菜增加200元人民币左右。