期刊论文

The soil physical and chemical properties in different stand ages of Chenshan red-heart Chinese fir

中文

中南林业科技大学学报

1673-923X

2020

40

12

114-124

10.14067/j.cnki.1673-923x.2020.12.014

“十三五”国家重点研发计划项目（2016YFD0600303）；

本校为第一机构

【目的】研究陈山红心杉人工林土壤理化性质,为正确理解不同林龄陈山红心杉土壤性质提供基础数据,为揭示亚热带红心杉形成机理提供研究新思路。【方法】选择9、15、26和34 a陈山红心杉人工林为研究对象,选取不同林龄不同土层深度的土壤,探究不同年龄阶段的红心杉土壤理化性质及相关性。【结果】随着林龄的增加,陈山红心杉土壤逐渐酸化,pH值在4.0 ~ 4.8之间,土质为粉砂土壤,机械组成为粉粒>砂粒>黏粒。全C含量随林龄增加逐渐积累,全N含量先增加后略微降低,到34 a后上升,全P含量逐渐降低,但到34 a时有所上升。全K含量随林龄的增加表现为先上升再下降再上升趋势,全Ca含量则为先升后降趋势,全Mg含量...

【Objective】The study on the soil physical and chemical properties of Chenshan Red-heart Chinese fir plantation can provide theoretical data for understanding the soil properties of different ages, and provide new ideas for revealing the formation mechanism of subtropical red-heart Chinese fir.【Method】9 a, 15 a, 26 a and 34 a Red-heart Chinese fir plantations were selected as the research object, and studied the physical and chemical properties and correlation of the soil of different ages and different soil layers.【Result】The results show...