摘要
土壤水资源分区是土壤水资源评价的基础,河北省地形地貌复杂、植被种类繁多,而且土壤水由于其赋存、运移和土壤质地、土层结构息息相关,所以需根据土壤的特性对河北省土壤水资源进行分区。在河北省土壤水资源资料分析的基础上,对河北省土壤水资源选取了地形地貌、干旱指数、土壤质地及植被条件4个评价指标,并采用权值因子判断表法来确定指标的权重,应用模糊聚类方法对河北省土壤水资源进行了分区,将河北省土壤水资源分为8区,并进行了分区研究,取得了较好的结果,其结果有利于河北省土壤水资源的研究。
Division of soil-water resources is the basis of soil-water resources evaluation. Because of complicated landform and physiognomy, various vegetation categories, and the close relation between storage and movement of soil-water with characteristic and structure of soil, the division of soil-water resources in Hebei province must be based on the characteristics of soil. Based on the a nalysis of the data of soil-water resources of Hebei province, choosing four evaluating indices, such as landform and physiognomy, aridity index, soil characteristics and vegetation, using the decision table method for weighting factor to decide the weight of indices, this paper applied fuzzy clustering means to divide the soil water resources of Hebei province to eight zones. Furthermore, the second zone was studied and satisfied result was got, which will be useful for the study on soil-water resources of Hebei province.
出处
《节水灌溉》
北大核心
2006年第6期16-19,共4页
Water Saving Irrigation
基金
河北省自然科学基金项目(E2005000286)
河北省水利厅项目(TRS-2-1.1.1)
关键词
土壤水资源
分区指标
权重
模糊聚类
soil-water resources
division indices
weight
fuzzy clustering
