主成分分析与系统聚类法在农业用地优先度评价中的应用

农业用地在土地利用中占了主导地位，是进行农业各部门生产的基本生产资料，因此合理开发农业土地资源，提高土地的利用率，实现农业的可持续发展，具有极其重要的意义。利用主成分分析和系统聚类法对山东省农业用地的影响因素进行分析，找出在农业用地上起主导作用的因素，为农业用地的合理利用提供一个理论依据，并从中分析出农业用地比较合理的城市，为其他城市农业用地的改革与发展提供一些较好的例子。两种方法的综合利用能更好更科学地反映山东省农业用地的真实情况，为理论的发展和决策的实现提供了很好的理论工具。图1，表4，参7。

Application of the Principal Component Analysis Method and the Hierarchical Cluster Analysis Method in the Agricultural Land Priority

The agricultural land occupied a leading position in the utilization of the land. It is the fundamental productive materials of every department on agriculture, hence it is of vital to develop the agricultural land resource , improve the utilization ratio of the land, and fulfill the sustainable development of agriculture. This paper analyses the influencial factors of the agricultural land utilization in Shandong through the component analysis method and the hierarchical cluster analysis method, tries to look for the main contributor to agriculture land use, thus to offer a theoretical foundation for rational utilization of the agricultural land, and identify the city which has more rational agricultural lands. The results can offer some better examples for the reforms and development of other urban agricultural lands. Analysis with the comprehensive utilization of two kinds of methods can better and more scientifically reflect the truth of agricultural land in Shandongm, and offer a good theory tool for development of the theory and realization of decision.