植物营养与肥料学报2026，Vol.32Issue(1)：173-185,13.DOI:10.11674/zwyf.2025011
基于最小数据集的新疆吐鲁番市甜瓜田土壤健康评价
Evaluations of soil health of melon field in Turpan City of Xinjiang based on minimum data set
摘要
Abstract
[Objectives]Evaluation of soil health is an effective measurement for identifying the soil health status and main soil obstacle factors of melon fields,which provides important theoretical support for the cultivation of healthy soil.This study established the soil health assessment database and evaluated the soil health index of melon fields by constructing a minimum data set(MDS)in Turpan City,Xinjiang.[Methods]A total of 72 soil samples were collected in the tillage layer of melon fields in Tuyugou,Ya'er,and Sanbao towns,Turpan City in Xinjiang,all the tested fields had planted melon for an average of 5 years.Twenty-eight soil physical,chemical,and biological properties were analyzed as the health indicators.A soil health assessment database was established,and the minimum data set(MDS)was constructed using principal component analysis.Linear and non-linear soil health assessment methods were used for evaluation.The total data set(TDS)was used for verification.[Results]Seven indicators were selected for the MDS by the principal component analysis,including the soil bulk density,electrical conductivity,available phosphorus,organic carbon,exchangeable calcium,soil respiration,and β-xylosidase.For the linear scoring function,the soil health indices calculated based on the TDS and MDS were 0.44 and 0.49,respectively,with coefficients of variation of 22.5%and 18.7%correspondingly.For the non-linear scoring function,the average soil health indices calculated based on the TDS and MDS were 0.46 and 0.47,respectively,while the coefficients of variation were 25.8%and 24.3%in that order.Using linear and non-linear evaluation methods,there was a significant positive correlation between the soil health index calculated based on the TDS and MDS(P<0.01).The slope was close to 0.9.Overall,the soil health index of Tuyugou and Ya'er Town was higher than that of Sanbao Town.[Conclusions]The MDS can be used as a substitute for the TDS in assessing soil health in melon fields.The large coefficient of variation of the soil health indices calculated by the nonlinear scoring function indicates that the nonlinear scoring function is more sensitive.Therefore,it is recommended to select the nonlinear scoring function for soil health evaluation of melon fields.The melon field in Turpan City,Xinjiang,is alkaline in terms of pH,with rich soil nutrient content,but relatively low organic matter and active carbon.According to the assessment of MDS,the soil health index in Turpan is below 0.5,indicating a moderate level of health.关键词
甜瓜/主成分分析/最小数据集/土壤健康指数Key words
melon/principal component analysis/minimum data set/soil health index引用本文复制引用
胡国智,谢沐希,杨俊涛,熊韬,闫淼,张江周,张俊伶..基于最小数据集的新疆吐鲁番市甜瓜田土壤健康评价[J].植物营养与肥料学报,2026,32(1):173-185,13.基金项目
新疆自治区重点研发计划(2023B02017) （2023B02017）
内蒙古农业大学高层次及优秀博士人才引进科研启动项目(NDYB2023-60) （NDYB2023-60）
国家现代农业产业技术体系(CARS-25) （CARS-25）
新疆自治区天池计划(XJ-32). （XJ-32）
