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对南海北部海区ＳＯ－５０－２９ＫＬ柱样全孔磁化率与古气候变化作对比研究，结果表明：（１）沉积物磁化率较好地响应着古气候的变化，存在明显的地球轨道偏心率、岁差及岁差半周期，（２）奇异谱分析结果显示十余万年来磁化率曲线的统计维为９，与黄土获得的结果基本一致．各主成分变化的周期均与增分析所得的周期大致吻合；（３）奇异谱分析所得的各成分的变化特征显示了过去十余万年古气候存在明显的非线性变化。
The results show that: (1) the susceptibility of sediments to the changes of palaeoclimate is better than that of the paleoclimate, and there is obvious eccentricity of Earth’s orbit , Precession and precession half-cycle, (2) singular spectrum analysis showed that the statistical dimension of the magnetic susceptibility curve was more than ten years, basically the same as that obtained from loess. (3) The variation characteristics of each component obtained from singular spectrum analysis show that there is a significant nonlinear change of palaeoclimate in the past more than ten thousand years.