土壤2025，Vol.57Issue(3)：597-606,10.DOI:10.13758/j.cnki.tr.2025.03.013
基于最小数据集评价长期不同施肥对潮土土壤质量的影响
Evaluation of Long-term Different Fertilization on Fluvo-aquic Soil Quality Based on Minimum Data Set
摘要
Abstract
In this study,the fluvo-aquic soil in the Fengqiu Agro-ecological Experimental Station was taken as the research object,four different fertilization treatments were selected,including no fertilization(CK),regular chemical fertilization(NPK),mushroom residue combined with chemical fertilizer(MRF)and chicken manure combined with chemical fertilizer(CMF),soil physical,chemical and biological indexes were measured as the total data set(TDS),two minimum data sets(MDS1 and MDS2)were derived through principal component analysis and correlation analysis,soil quality index(SQI)was calculated by linear(L)and nonlinear(NL)scoring models respectively,the optimal SQI was found by fitting SQI with crop yield,and the technical measures for soil conservation and fertility improvement were proposed.The results showed that compared with CK,the combined application of organic materials and chemical fertilizer,especially MRF,improved soil physical,chemical,biological properties and crop yield.Soil quality index based on the total data set(SQIT)was significantly positively correlated with the linear and nonlinear soil quality indexes of the two minimum data sets.The nonlinear soil quality index based on MDS2(SQI2-NL)more accurately evaluated soil quality.Under this evaluation method,SQIs of different fertilization treatments showed MRF(SQI=0.60)>CMF(SQI=0.52)>NPK(SQI=0.48)>CK(SQI=0.36).In conclusion,MRF is beneficial to maintain and improve fluvo-aquic soil quality in the study area.关键词
潮土/长期不同施肥/主成分分析/最小数据集(MDS)/土壤质量指数(SQI)Key words
Fluvo-aquic soil/Long-term different fertilization/Principal component analysis/Minimum data set(MDS)/Soil quality index(SQI)分类
农业科技引用本文复制引用
王晓婷,姚童言,陈瑞蕊,林先贵..基于最小数据集评价长期不同施肥对潮土土壤质量的影响[J].土壤,2025,57(3):597-606,10.基金项目
国家重点研发计划重点专项课题(2022YFD1500304)资助. （2022YFD1500304）
