空间分析技术和图论树算法在农业区划中的应用

地域分异规律是区划研究的理论依据，而进行区划的技术关键是如何根据空间相似性实现其合理分割，该研究以地理信息系统的空间数据采集，分析工具为支撑，利用ＧＩＳ的空间邻接分析与图论的树算法相结合的方法对浙江省龙游县农业分区进行了研究，利用该方法建立的自动分区模，运行效率高，且分区结果与当地实际较为符合。

Application of Spatial Analysis and Optimal-Tree Cluster in Agricultural Division

Because of the existence of regional variability in natural and economical condition in agricultural production, proper agricultural division is essential that different developing strategy can be adopted for every zone. However, establishment of agricultural division requires large, unwiedly geographical referenced data sets and spatial adjacency relationship, it is difficult to utilize many cenventional mathematical methods. In the study, Geographical Information System was used to manipulate and analysis spatial data, Optimal tree Cluster was adopted for division. This integrated methodology was programmed as applied model and embedded in Soil Information System, case on Longyou county, Zhejiang province. Advantage of this integrated methodology is easily and quickly with low cost, compared to agricultural division by local bureau. Furthermore, the result is also suitable for the practical situation.