关键词: 自然界线, 自然界线统一协调, 自然界线重合度, 自然界线统一协调参考图

Abstract: The purpose of this paper is to study the unified harmony of natural boundaries. First, it describes the main characters of the natural houndaries and what the unified harmony of the natural boundariesis. Second, it gives qualitative and quantitative analyses to the relations among the natural boundaries. On the basis of analysing, the coincilent degerees of Lijiang series maps (geomorphology map, soil map, vegetation map, land resource map) have been calculated with the method of measuring information by using Entropy function. The result of calculation shows that there are close relations among the natural boundaries, and how to represent the rdat ions is the key problem of the unified harmony. Last, it discusses main measures of ensuring the unified harmony of natural boundaries. The author goes into more details with the reference map of the unified harmony of natural boundaries, which is one of the most important measures. Its contents, compilation and application are described in detail.

Key words: Natural Boundary, The unified harmony of the natural boundaries, Thecoincident degree of natural boundaries, The reference map of the unifiedharmony of the natural boundaries