关键词: 行政区划, 行政边界, 山川形便, 犬牙相入

Abstract:

As one of the basic elements of administrative division, administrative boundary is the spatial basis and important basis for the country to implement effective administrative management according to law. This study uses spatial analysis, multiple regression analysis based on grid and other methods to study the administrative boundaries above the county level in China and their changing trend. The results show that: at present, China is still divided into geographical regions and administrative regions according to the natural geographical features such as mountains and rivers. The administrative boundaries were zigzag, as jagged as a dog's teeth. On the whole, the higher the administrative level is, the more obviously it is affected by the principle of the shape of mountains and rivers, the lower the altitude is, and the more obviously affected by the principle of the interlacing of administrative boundaries. The existing ways of dividing administrative boundaries are mainly reflected in the following aspects: first, ecological division frequently occurs, which has negative effect on the overall protection of the ecological environment in the border areas. Problems existing in the current administrative region boundary segmentation approach are mainly reflected in the following aspects. The demarcation principle of convenient mountains and rivers in administrative areas is prone to cause some complete ecological environment units to be divided artificially by different administrative boundaries, which can lead to a variety of inter-regional contradictions, which has negative effect on the overall protection of the ecological environment in border areas. In addition, uneven administrative boundaries undermine the integrity of the economic zone, raise the circulation costs and administrative costs of production factors, which is likely to lead to boundary disputes and interest disputes. At present, the impact of mountains and rivers on the national economic and social development is weakening, and the economic and social development is gradually breaking through the restrictions of administrative boundaries. In the process of administrative division adjustment in the future, administrative boundaries should be set by crossing mountains and rivers in a timely manner, and the way of administrative district setting should be changed, so as to ensure the integrity of ecological environment and the actual needs of economic and social development.

Key words: administrative division, administrative boundaries, mountains and rivers serve as boundaries, administrative boundaries crisscross each other