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根据重力场非潮汐变化的波长特征讨论了由重复重力测量结果中提取地震前兆场信息的可能性。文中提出并应用场论理论中重力梯度场变化的二维散度可突出与地震有比较直接关系的孕震信息。通过对北祁连河西地区几次强震的分析研究，认为重力散度较好地反映了地震发生前震源区的孕震特征，是一种值得进一步研究的方法。
According to the wavelength characteristics of non-tidal changes of gravity field, the possibility of extracting the information of seismic precursory field from repeated gravimetric results is discussed. In this paper, the two-dimensional divergence of the gravity gradient field in the theory of field theory can be used to highlight the seismogenic information that is directly related to the earthquake. Based on the analysis and study of several strong earthquakes in the Hexi area of the North Qilian Mountains, it is considered that the gravity divergence well reflects the seismogenic characteristics of the source area before the earthquake and is worth further study.