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Due to the inadequacy of knowledge on nature of debris flow, definitions of the subject differ. A review of the study on debris flow in the past 70 years, which was represented by over 50 teaching materials of sciences/monographs in this area, may lead to the conclusion that geomorphology is the parent subject of debris flow study. With the growth of the disciplinary growing point, a new cross disciplinary subject hazard geomorphology or geomorphic catastrophology has come into being, of which debris flow is a subject matter. The article expects to stimulate more discussion and debates on debris flow so as to boost the development of its study.
Due review of the study on debris flow in the past 70 years, which was represented by over 50 teaching materials of sciences / monographs in this area, may lead to the conclusion that geomorphology is the parent subject of debris flow study. With the growth of the disciplinary growing point, a new cross disciplinary subject hazard geomorphology or geomorphic catastrophology has come into being, of which debris flow is a subject matter. The article expects to stimulate more discussion and debates on debris flow so as to boost the development of its study.