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酸雨对生态环境的影响是一个全球性的问题[1-2]。我国酸雨覆盖面积约占国土面积的40%。酸雨污染了土壤,导致土壤酸化,进而影响了农作物的生长发育。酸雨严重制约了一些地区的农业生产和发展。植物种子在萌发与幼苗阶段极易受到酸雨的影响。国内外关于酸雨对作物的影响做了大量研究,多以农作物和经济作物为对象[3-6],包括在种子萌发期和幼苗前期,而对牧草种子萌发的影响少见报
The impact of acid rain on the ecological environment is a global issue [1-2]. China’s acid rain covers an area of about 40% of land area. Acid rain polluted the soil, leading to acidification of the soil, thus affecting the growth and development of crops. Acid rain has seriously hampered agricultural production and development in some areas. Plant seeds are highly susceptible to acid rain during germination and seedling stages. Domestic and international studies on the impact of acid rain on crops have done a lot of research, mostly crops and cash crops as the object [3-6], including the seed germination and early seedling stage, while the forage seed germination rarely reported