Table 3 Studies on the fine roots of trees

Researcher Main content
Kwak and Kim (1994) The reason that the roots of trees are concentrated in the topsoil layer is because nutrients, moisture, air conditions, and soil minerals are the most favorable in the upper layer.
Lee (1995) In the case of oak and pine, 90% of all fine roots exist within 12cm of the topsoil.
Shin (2001) The distribution of fine root surviving amount in the oak forest near Gongju accounts for about 50% of the total at 0cm∼10cm, about 27% at 10∼20cm depth, and about 23% at 20∼30cm depth.
Kim and Kwak (2004) In the landscaping of landscaping trees in the coastal landfill, the amount of fine roots is distributed about 31% to 55% of the total amount from the topsoil to 20cm below the ground.
Kim (2007) The density of mountain roots of zelkova fine roots in the coastal landfill of Gwangyang Bay is distributed with a large concentration of fine roots 20 cm underground from the topsoil with an average of 43.3% to 71.8% of the total fine roots.
苅住曻 (1979) According to a survey on the vertical distribution of fine roots of 7 and 20 years old in cedar forests, 87% of 7 years olds were distributed within 15cm of soil depth (1st floor), and 47% of 20 year olds were distributed. The larger the tree, the deeper the soil Had a lot of tendencies.
Heo (2011) When looking at the distribution of fine roots by depth for the size of pine trees in Gangwon National University, about 50% of fine roots were distributed from 0cm to 10cm, and the size of white pine was 48% to 51%, and the size of red oak was 50%. Represents a range of ∼64%.
Kang (2010) In terms of the carbon biomass of fine roots for major planted tree species, the ratio at the soil depth of 0 cm to 30cm was 74.0% for pine forests, 66.9% for larch forests, 65.3% for oak forests, and 62.5% for pine forests. Net production of carbon is less with deeper soil.
今吉直俊 等 (1989) As a result of a study on the seasonal variation of fine root mass in 40-year-old Hinokirim, as a result of examining the vertical distribution pattern of the root system, 65% to 75% of the existing amount of fine roots (less than 1m) is concentrated in the first floor (0cm to 4cm). Was doing. The fine roots play the role of nutrient absorption and show a tendency to concentrate on the A layer (0㎝ to 8㎝) of the soil surface, which is good for nutrient and moisture conditions.