摘要
应用重心研究物质和能量的迁移是地学分布研究中的常用方法,但目前的重心计算方法在理论上不够严密。在GIS技术手段支持下,以中国大陆经济重心计算为实例,分别以省会(点)坐标、省(面)几何中心坐标、地级市(点)坐标和市(面)几何中心坐标计算法进行计算,并对计算结果进行比较和分析。研究结果表明,用更低一级子子区(市)行政首府或几何中心坐标计算的重心与常规方法相比计算结果有较大偏差。建议在顾及数据的可获得性的情况下,应优先采用子子区坐标的加权平均计算方法,基于GIS技术的辅助,该计算不难实现。
The migration of application research methods of gravity center on material and energy is a common method in geography,but the current calculation method is not closely enough in theory.Based on the GIS technology,coordinate of provincial capital and the geometric center of provinces（region） were respectively used as the province＇s economy gravity center coordinates calculation method,the coordinates of the provincial level cities,stational places and geometric centre of the two-weighted average calculation method were used to calculated.The results showed that the use of lower-level or sub-district administrative capital of the geometric center coordinates calculation of the gravity center areas of the two-weighted average calculation method had greater deviation compared with conventional methods.Taking into account the recommendations of the availability of the data circumstances,the priority should be given a two-weighted average calculation method.Based on GIS technology,the calculation was not difficult to achieve.
出处
《广东农业科学》
CAS
CSCD
北大核心
2011年第1期198-200,共3页
Guangdong Agricultural Sciences
基金
梅州市科技局
嘉应学院联合自然科学基金(08KJ01)
关键词
计算方法
经济重心
GIS技术
calculation method
economic focus
GIS technology
