山西黄连木不同种源地土壤肥力分析评价

Analysis and Evaluation on Soil Fertility of Different Provenances of Pistacia Chinensis Bunge

通过对山西黄连木不同种源地的土壤营养成分指标进行主成分分析和聚类分析,综合评价各种源地土壤的肥力水平。结果表明,利用主成分分析法选出的3个主成分对黄连木不同种源地的土壤营养成分指标进行排序,泽州驾岭、垣曲皋落、阳城蟒河3个地区的土壤营养成分指标表现最好;聚类分析将黄连木种源地分为3类,对黄连木进行栽培管理时应参考阳城、垣曲和泽州地区的土壤营养条件。

The fertility level of soils from different provenances were comprehensively evaluated through the principal component analysis and cluster analysis of the soil nutrient indexes of different provenances of Pistacia chinensis Bunge in Shanxi. The results showed that the three principal components selected by the principal component analysis method were used to rank the soil nutrient indexes of different provenances of Pistacia chinensis Bunge. The soil nutrient indexes in the three regions of Jialing Township in Zezhou County, Gaoluo Township in Yuanqu County and Manghe Township in Yangcheng County performed the best. The cluster analysis divided the provenances of Pistacia chinensis Bunge into 3 categories.The soil nutrient conditions in Yangcheng, Yuanqu and Zezhou could be referred to the cultivation and management of Pistacia chinensis Bunge.