期刊
JOURNAL OF FOREST RESEARCH
卷 13, 期 3, 页码 185-189出版社
SPRINGER TOKYO
DOI: 10.1007/s10310-008-0063-y
关键词
competition; fine roots; Japanese red pine; root biomass; root morphology
类别
The fine root (diameter <= 2.0 mm) biomass and morphology of Japanese red pines (Pinus densiflora) grown under different aboveground conditions (i.e., high and low competitive environments) were examined in a pine cypress mixed forest. All P. densiflora subject trees were about 40 years old, and the aboveground condition (i.e., size) of red pines appeared to be influenced by the surrounding Japanese cypress (Chamaecyparis obtusa). Smaller P. densiflora exhibited lower fine root biomasses, shorter root lengths, and lower root tip densities, but longer specific root lengths and higher specific root tip densities relative to larger pines. These results suggest that P. densiflora may adjust the morphological traits of fine roots to the different conditions in biomass allocation to fine roots of individuals with different aboveground growth.
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