文章基本信息

标题：Fine Root Traits of Pinus koraiensis Varied with Soil Cation Exchange Capacity in Natural Forests
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作者：Shuxia Jia ; Xingpeng Li ; Wensheng Sun 等
期刊名称：Land
印刷版ISSN：2073-445X
出版年度：2021
卷号：10
期号：4
页码：363
DOI：10.3390/land10040363
语种：English
出版社：MDPI, Open Access Journal
摘要：Adaptation of fine root plasticity to soil nutrients heterogeneity in natural forest ecosystems has not been well explored. The study aimed to determine seasonal variations of fine root traits in iPinus koraiensis/i natural forests and explore the relationship between fine root traits and soil properties. Root and soil samples were collected from the coniferous broad-leaved mixed forest (BP), monospecific iP. koraiensis/i forest (MP), and coniferous mixed forest (CP). Soil available phosphorus (P) content for MP was 31.7% and 39.8% lower than for BP and CP. Soil cation exchange capacity (CEC) for MP was lower by 23.5% and 27.2% than for BP and CP, respectively. In July, specific root lengths and root surface areas for BP and CP (mixed forests) were significantly higher than for MP (monospecific forest). A structural equation model showed that CEC had a significant effect on fine root traits. Root diameter, root volume density, and root surface area density were negatively correlated with CEC. Fine root traits plasticity of iP. koraiensis/i are closely related to soil available nutrient contents, CEC, and species composition at the ecosystem level.