山西省境内汾河、桑干河、滹沱河等河流沿岸地区,地下水位很高,土壤鹽渍化严重,鹽碱低湿地很多;近年来结合增产油料,在鹽碱低湿地区大量种植向日葵,已成为合理利用盐碱地的主要措施之一。目前全省向日葵种植面积已发展到五十余万亩,绝大部分是利用鹽碱低湿地种植的。通过历年 Shanxi Province, the Fen River, Sanggan River, Hutuo River and other rivers along the coast, the groundwater level is high, soil salinization is serious, a lot of saline-alkali wetlands; in recent years combined with increased oil production, a large number of sunflower in saline-alkali low humidity areas have been Become one of the main measures to make rational use of saline land. At present, the province’s sunflower area has been developed to more than 50 acres, the vast majority of the use of saline low-wetland planting. Through the calendar year