河北农业科学2026，Vol.30Issue(2)：33-38,56,7.DOI:10.12148/hbnykx.20260011
种植年限对石家庄典型梨园根层土壤养分含量与分布的影响
Effects of Planting Years on Soil Nutrient Content and Distribution in Root-zone of Typical Pear Or-chards in Shijiazhuang
摘要
Abstract
To elucidate the dynamic changes in soil nutrients in the root layer of pear orchards with different planting ages in the Shijiazhuang region,and to provide a theoretical basis for the efficient and sustainable uti-lization of soil nutrients in pear orchards in Central Hebei Province,this study sel ected pear orchards with planting ages of 0(adjacent wasteland),2,6,11 and 22 years as research subjects.Soil samples were col-lected from the root layers at depths of 20-40 cm and 40-60 cm,respectively,and the changes in soil pH,organic matter content,and the contents of macro-,medium-,and major micronutrients in the two root layers under different planting ages were analyzed.The results showed that pear planting reduced soil pH while increasing SOM levels.The content of macronutrients increased significantly during the first 0-6 years of planting,with alkali-hydrolyz-able nitrogen(AHN),available phosphorus(P),and available potassium(K)accumulating to 118.7 mg/kg,57.9 mg/kg,and 246.3 mg/kg,respectively.However,after long-term planting,nutrient levels became unstable,with AHN showing a declining trend.Calcium(Ca)content followed a trend sim-ilar to that of AHN,increasing initially and then decreasing,suggesting an increased demand for Ca in later growth stages.Magnesium(Mg)content exhibited a cumulative upward trend over the years in the 20-40 cm soil layer.Iron(Fe),manganese(Mn),zinc(Zn),and boron(B)all increased significantly after planting,with Zn showing the most pronounced increase.However,in the 40-60 cm soil layer,the content of most mi-cronutrients peaked at six years of planting.A surface soil layer enrichment effect was observed for all nutrients;regardless of SOM,macronutrients,secondary nutrients,or micronutrients,their content and increase were gen-erally higher in the fertilized and cultivated layer(20-40 cm)compared to the 40-60 cm soil layer.The find-ings clarify that short-term pear planting can enhance soil nutrients,but under long-term planting,soil nutri-ents tend to become depleted and imbalanced.This study provides data support for the formulation of soil opti-mization management measures for pear orchards in the future.关键词
石家庄/梨园土壤/植物营养/种植年限Key words
Shijiazhuang/Pear orchard soil/Plant nutrition/Planting years分类
农业科技引用本文复制引用
王晋,王红宝,杨岳昆,李晓,王亚茹,王迎涛,安硕,王永博,李勇..种植年限对石家庄典型梨园根层土壤养分含量与分布的影响[J].河北农业科学,2026,30(2):33-38,56,7.基金项目
河北省农林科学院科技创新人才队伍建设项目(C21R0701) （C21R0701）
国家现代农业产业技术体系建设专项资金项目(CARS-28) （CARS-28）
河北省农林科学院科技创新专项课题(2022KJCXZX-SGS-5) （2022KJCXZX-SGS-5）
河北省现代农业产业技术体系梨产业创新团队项目(HBCT2024170202) （HBCT2024170202）
