摘要
利用灰色系统分析方法,对影响甘草生物量的环境因素进行了定量分析。结果表明:在8种环境因素中,土壤水解氮、土壤速效钾、土壤有机质(%)、土壤微生物生物量的灰色关联度较大,而土壤有效磷、土壤含水量、月平均气温、土壤pH值的灰色关联度较小。根据灰色分析结果,建立了甘草生物量的回归模型:y=-639.239 4+5 893.302 2x1+1 222.714 4x2+280.319 7x3-6.867
The enviorment factors affectting the biomass of Glycyrrhiaz uralensis Fisch were studied by grey system analysis. The result shows that among eight enviorment factors, the content of soil hydroiyted nitrogen, quick acting potassium, active organic matter and microbial biomass keep a higher grey connection degree,whereas content of soil effective phosphorus, water, average air temperature in a month and soil pH keep a lower grey connection degree. With the biomass of Glycyrrhiaz uralensis Fisch was also established. The model： y = - 639.239 4 ＋ 5 893.302 2x1 ＋ 1 222.714 4x2 ＋ 280.319 7x3 - 6.867 3x4
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2010年第1期9-13,共5页
Journal of Jilin Agricultural University
基金
吉林省教育厅科研基金项目(吉教科合字[2002]第37号)
吉林省卫生厅科研基金项目(吉中医药发[2005]35号)
关键词
甘草
生物量
环境因素
灰色分析
吉林省西部
Glycyrrhiaz uralensis Fisch
biomass
enviorment factors
grey analysis
western region ofJilin province
