摘要
土壤质量评价,对于发展该地区的农业生产、改良土壤、防治水土流失、揭示人类活动对土壤环境的影响均有重要的意义。在以往土壤质量研究中采用过灰色关联度分析、模糊分析等方法,但由于具有分类不精确等很多缺陷,因此人们又在寻找新的方法。随着数值化评价方法的提出与进一步应用,聚类分析方法作为土壤研究中的一种合理有效的新方法已经广泛应用。以封丘县为例,对土壤质量进行了聚类分析,将封丘土壤质量分为4类,并研究了其各因素状况,在此基础上提出了改进措施和方法。
Soil quality evaluation is important for agriculture production, soil improvement, soil and water loss prevention, and revealing the impact of human activities on soils in a region. The methods of grey relational grade analysis, fuzzy analysis used in the past had many shortcomings such as imprecise classification. Cluster analysis is a reasonable and effective way in soil study. Soil quality in Fengqiu county was divided into 4 catagories by using cluster analysis. And measures and methods to improve soil quality in Fengqiu county were proposed based on the analysis of various factors.
出处
《湖南农业科学》
2008年第5期66-68,共3页
Hunan Agricultural Sciences
基金
教育部哲学社会科学研究重大课题攻关项目(04JZD0008)
关键词
土壤质量
聚类分析
封丘县
SPSS
soil quality
clustering analysis
Fengqiu county
SPSS
