不同种植年限下闽西油茶产地山地红壤化学计量特征分析  

Analysis of Stoichiometric Characteristics of Mountainous Red Soil of Camellia oleifera Producing Area in Western Fujian under Different Planting Years

作　　者：孙万流 Sun Wanliu(Ninghua Soil and Water Conservation Station,Ninghua 365413,Fujian,China)

机构地区：[1]宁化县水土保持站,福建宁化365413

出　　处：《农业技术与装备》2023年第10期134-135,共2页Agricultural Technology & Equipment

基　　金：国家自然科学基金“不同土地利用方式下山地红壤重金属的活化机理研究”(415561073)。

摘　　要：山地红壤为闽西山地主要土壤之一,为了研究不同种植年限下闽西山区油茶产地山地红壤化学计量特征,找出山地红壤养分的主要限制因子,在2018年11月—2021年11月连续四年对不同种植年限下油茶产地山地红壤主要化学性质及化学计量特征进行了系统的研究,研究结果表明:不同种植年限下油茶产地山地红壤养分最差表现在2021年,2018年—2021年表现为逐渐降低的趋势,长期栽培油茶的山地红壤常有进一步酸化的趋势,不同种植年限下C/N、C/P,化学计量特征有上升的趋势,C/K、N/P、N/K、P/K化学计量特征变化不大相差数值基本比较接近。In order to study the effects of different planting years on the stoichiometric characteristics of Camellia oleifera soil in Fujian mountainous area,the main chemical properties and stoichiometric characteristics of Camellia oleifera soil under different planting years were systematically studied.The results showed that the optimal characteristics of soil nutrients in different planting years of Camellia oleiferawere in 2021,and gradually increased from 2018 to 2021.The soil of Camellia oleifera cultivated for a long time tends to be further acidified.Under different planting years,the ecological stoichiometric characteristics changed little,and the difference value was not big,basically close.

关 键 词：种植年限 山地红壤养分 化学计量 油茶 

分 类 号：S158[农业科学—土壤学]