【摘要】 本文根据1959～1989年水质资料研究了海南岛河流主要离子的特征和起源,结果表明:海南岛河流溶解性固体含量全岛多年均值（78.49 mg/l）低于我国大陆主要河流（140～400 mg/l）,但河水中Cl^-与H₄SiO₄的含量显著地高于我国大陆的大部分河流;Cl^-主要来自海洋气溶胶,H₄SiO₄来自岩石风化;海南岛河水主要离子组成主要受铝硅酸盐岩石和海洋气溶胶的影响,而不同于我国大陆的大部分河流其离子组成主要受碳酸盐岩和蒸发岩的影响。更多还原

【Abstract】 According to water chemistry data from 1959 to 1989, the chemical characteristics and genesis of major ions of the rivers in Hainan Island are discussed. The annual mean content of dissolved solid in the rivers of Hainan Island （about 78 mg/1） is less than that in the large rivers of China’s mainland （140～400 mg/1）, whereas contents of Cl^- and H₄SiO₄ in the rivers of the island are evidently higher than that in most rivers of the mainland. Cl^- are from ocean aerosols and H₄SiO₄ from weathering rocks. The major ionic composition in the river of Hainan Island is dominated by the weathering of aluminosilicates and the input of ocean aerosols, while that in most rivers of the mainland is influenced by the carbonates and evaporites.更多还原