西北林学院学报2025，Vol.40Issue(1)：59-69,103,12.DOI:10.3969/j.issn.1001-7461.2025.01.07
基于最小数据集的云南橡胶林土壤质量评价
Soil Quality Evaluation of Rubber Plantations in Yunnan Province Based on Minimum Data Set
摘要
Abstract
In order to evaluate soil quality under rubber plantations in Yunnan Province,soil samples of rubber plantations with different growth stages(young,medium,near-mature,mature,and overmature)were collected from different layers(0-10,11-20,and 21-40 cm)in three typical rubber planting regions of Yunnan Province,i.e.,Hekou,Ruili,and Jinghong.Soil bulk density,water content,nitrate nitrogen,ammonium nitrogen,total nitrogen,available phosphorus,total phosphorus,available potassium,total potassium,pH,organic matter,urease,cellulase,catalase and sucrose invertase were used as the indi-ces of the whole data set(TDS).Principal component analysis(PCA),correlation analysis and Norm value were used to obtain the minimum data set and calculate soil quality index(SQI)for quantitative evaluation of soil quality.The results showed that 7 indices were allowed to enter the minimum data set,including soil bulk density,nitrate nitrogen,total nitrogen,total phosphorus,total potassium,organic matter,and urease.The value of SQI-TDS ranged from 0.29 to 0.56,with an average of 0.39 and a coefficient of variation of 14.67%.The minimum and maximum values of SQI-MDS were 0.20 and 0.53,respectively,the mean value was 0.34 and the coefficient of variation was 18.88%.The correlation of the two evaluation results was good.The SQI decreased slightly and then increased with the growth of rubber plantations.The soil quality in the three rubber planting areas belonged to the level 3 and 4,and the soil quality in three regions was in the order of Jinghong>Hekou>Ruili.关键词
土壤质量评价/主成分分析/最小数据集/橡胶林/云南Key words
soil quality evaluation/principal component analysis/minimum data set/rubber plantation/Yunnan分类
农业科技引用本文复制引用
张和芬,孙瑞,杨川,张盈盈,符庆茂,吴志祥..基于最小数据集的云南橡胶林土壤质量评价[J].西北林学院学报,2025,40(1):59-69,103,12.基金项目
中国热带农业科学院基本科研业务费"揭榜挂帅"项目(1630022022003) （1630022022003）
海南省自然科学基金面上项目(323MS076) （323MS076）
现代农业产业技术体系建设专项(CARS-33-ZP3). （CARS-33-ZP3）
