【摘要】 近几十年来,学者们侧重于古都与黄河流域生态环境变迁关系的研究,对古代中小城镇与生态环境变迁关系的研究深度不够;主要关注黄河及其支流水患对某一城镇的影响,对黄河中下游地区生态环境变迁、城镇兴衰,特别是二者关系的研究,尚不够系统、全面。学界对该问题的研究有待深入。更多还原

【Abstract】 In recent decades scholars concerned place emphasis on the study of the relationship of ancient capitals and ecological environment evolution of the Yellow River basin,but not on the study of the relationship of medium and small cities & towns and ecological environment changes of the basin. They focus on the influence of the flood disasters on certain cities or towns,but they do not make a comprehensive or systematic study on the ecological environment changes,ups and downs of the cities and towns,esp. the relationship between them in the middle and lower reaches of the Yellow River.更多还原