期刊论文

Topsoil fertility quality evaluation along an elevation gradient of Dawei Mountain in eastern Hunan Province

中文

森林与环境学报

2096-0018

2021

41

03

281-289

10.13324/j.cnki.jfcf.2021.03.008

国家自然科学基金项目（41571234）； 中国博士后科学基金项目（2020M672498）； 湖南省教育厅项目（15B110）；

本校为第一机构

为了解山地土壤肥力质量的垂直地带性分异规律,选取中亚热带典型花岗岩中山(湘东大围山)土壤垂直带,沿海拔梯度采集21个调查样地的表层土壤样品,室内分析14项土壤物理、化学指标(砂粒含量、粉粒含量、黏粒含量、容重、pH值、有机质含量、全氮含量、全磷含量、全钾含量、碱解氮含量、有效磷含量、速效钾含量、阳离子交换量和盐基饱和度),基于主成分分析法构建土壤肥力质量评价的最小数据集,探索土壤肥力质量指数、土壤理化性质与海拔的关系。结果表明,土壤肥力质量评价最小数据集包括黏粒含量、阳离子交换量、有机质含量、有效磷含量和速效钾含量5项指标。土壤有机质、全氮含量和阳离子交换量均随...

Soil quality conservation and improvement are essential for the promotion of ecosystem service functions. In this study,to understand the vertical zonal differentiation of soil fertility quality in mountainous areas,an elevation gradient along the granite Dawei Mountain in eastern Hunan Province was selected. Topsoil samples from the 21 surveyed plots were collected for the investigation,and 14 indices of soil physiochemical properties were analyzed(sand content,silt content,clay content,bulk density, pH value,organic matter content,total nitrogen content,total phosphorus content,total potassi...