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在内蒙古大青山前较大的冲积扇上聚集了呼和浩特、包头、萨拉齐等一系列城镇,文章以归绥城为例,探讨了明末以来大青山前城镇周边生态环境劣变与水灾之间的关系。这些城镇水灾的成因具有多重性特点,它们是在生态环境恶化和城址地理特征的致灾性等因素的共同作用下而发生的。这些城镇所处的地理位置、地形条件及其降雨特征,具有潜在的致灾性,而在明清小冰期的气候背景下,自明末以来的持续的不合理的地区开发,导致大青山及其山前地带生态环境恶化之后,在某种程度上破坏了自然的调节机能,激化或加剧了自然环境潜在的致灾性,从而使它们发生水灾的概率相对增大。
A series of towns and cities such as Hohhot, Baotou and Saraqi are gathered in the larger alluvial fan in front of the Daqingshan Mountains in Inner Mongolia. The article takes Sui Sui as an example to discuss the ecological environment deterioration and flood in the surrounding area of Daqingshan Mountain since the end of the Ming Dynasty Relationship between. The causes of these urban floods are characterized by multiplicity. They occur under the joint action of deteriorating ecological environment and the devastating impact of the geographical features of urban sites. The geographical location, topography and rainfall characteristics of these towns are potentially disastrous. Under the climatic background of the Ming and Qing Little Ice Age, the continuous unreasonable development since the end of the Ming dynasty led to the construction of Daqingshan Mountain and its After the deterioration of the ecological environment in the foreland, the natural regulatory function has been destroyed to a certain extent, and the potential natural disasters have been intensified or aggravated, so that the probability of floods is relatively increased.