摘要
根据大量试验数据的统计分析，建立了渍害田特征判别模型，为渍害田的定量诊断提供了理论依据．模型的结果表明，渍害田与非渍害田的临界判别值θ＝２２２．４．经Ｆ检验，导出的判别函数在α＝０．０１水平上显著．
in this paper,a lot of experimental data is statistically analysed to build up a characteristic discriminant of waterlogged fields to provide the theoriticat base of quantitative diagnosis ofwaterlogged fields. The developing stages of the diagnostic model are stated, and the results showthat the threshold of classification between waterlogged and non-waterlogged fields is θ= 22. 4. Bythe F test, the significance level of the diagnostic model is α= 0. 01.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
1995年第4期534-540,共7页
Journal of Central China Normal University：Natural Sciences
基金
湖北省高等学校青年科学研究发展计划项目
关键词
渍害
稻田
判别分析
诊断模型
waterlog damage
rice field
distinguish analysis
diagnostic modedl
threshold ofclassification
