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山东莱州湾地区的土地类型划分和土地评价
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摘要:
对地学综合体的概念作了较详细的描述。指出它是在一定的大区构造、大区地貌和生物气候条件下,区域性的地质、第四纪沉积物、地貌、水文和水文地质、土壤和植被等地学因素组成的合谐而有规律的地学单元。土地可以按照地学综合体的原则来划分类型。按照模糊聚类方法得到的土地评价结果同多年的小麦、玉米产量以及农民的人均年收入有很好的相关性(R2=0.538**,0.275**,0.399**).
关键词:  土地类型  土地评价  莱州湾  
DOI:
投稿时间:1991-03-05
基金项目:
Land Classification and Evaluation for Agriculture around Laizhou Bay Area of China
Abstract:
A new concept,Geo-soil system was given in the paper.It is an entity,the area covered by one type of landform and corresponding other components determined by the landform.The land is classified according to the principle of geo-soil system.Land classes were divided into subclasses according to the differentiation of geo-soil system caused by the different site of landform,and to land unite according to soil profile structure.The result of land evaluation based on the fuzzy cluster analysis has good linear ...
Key words:  land classification  land evaluation  Laizhou Bay