北华大学学报（自然科学版）2024，Vol.25Issue(4)：516-523,8.DOI:10.11713/j.issn.1009-4822.2024.04.018
钙添加对杉木新造林地土壤理化性质及有效养分元素含量的影响
Influence of Calcium Addition on Soil Physicochemical Properties and Contents of Available Nutrient Elements in New Afforestation Land of Cunninghamia lanceolata
摘要
Abstract
Aimed to explore amelioration effects of calcium addition on forestry soil.Fertilization experiments were conducted in Cunninghamia lanceolata afforestation with two levels of nitrogen-phosphorus addition(N1:50 kg/hm2,N2:100 kg/hm2;P1:50 kg/hm2,P2:100 kg/hm2)and three levels of calcium addition(Ca0:0 kg/hm2,Ca1:100 kg/hm2,Ca2:200 kg/hm2).Soil physicochemical properties and contents of available nutrient elements were measured to analyze the impact of calcium addition on forest soil.The result showed soil bulk density decreased,while soil pH,soil moisture,alkaline hydrolyzable nitrogen,available potassium,exchangeable calcium,and exchangeable magnesium increased when being treated with calcium fertilization.But the impact of calcium addition on soil available phosphorus content varied with nitrogen and phosphorus fertilization treatments.Variance analysis demonstrated that 7 indicators including soil bulk density,pH,organic matter,alkaline hydrol-yzable nitrogen,available phosphorus,exchangeable calcium,and exchangeable magnesium were significantly influenced by different fertilization factors and exhibited significant interactions.Soil available potassium was significantly influenced by different calcium addition.There was a strong positive correlation between soil physi-cochemical properties and the content of available nutrient elements.Exogenous calcium addition based on traditional nitrogen-phosphorus fertilization is beneficial for improving the soil of Cunninghamia lanceolata artificial afforestation,which can mitigate soil acidification,enhance the supply of available soil nutrients,and promote the quality of Cunninghamia lanceolata plantations.关键词
杉木/新造林地/钙添加/施肥/有效养分/生态修复Key words
Cunninghamia lanceolata/new plantation/calcium addition/fertilization/available nutrients/ecol-ogical restoration分类
农业科技引用本文复制引用
廖晓丽,魏文海,蔡思莹,薛可馨,邢郑瑜,詹旋常,靳少非,郑德祥..钙添加对杉木新造林地土壤理化性质及有效养分元素含量的影响[J].北华大学学报（自然科学版）,2024,25(4):516-523,8.基金项目
国家自然科学基金面上项目(32071760) （32071760）
福建省自然科学基金面上项目(2023J011419) （2023J011419）
福建省林业科技攻关项目(2022FKJ02). （2022FKJ02）
