S-Space College of Agriculture and Life Sciences (농업생명과학대학) The Arboretum, Seoul National University (수목원) Bulletin of the arboretum Seoul National University (수목원 연보) Bulletin of the arboretum Seoul National University no.15 (1995)
全國 主要 都市에 綠陰樹로 植栽된 느티나무의 健康度 測定과 이를 利用한 大氣汚染狀態 推定
Measurement of Tree Health of Zelkova serrata Makino Planted as a Shade Tree in Major Cities and Its Use for Estimation of Air Pollution
- 李景俊; 韓心熙; 金君保
- Issue Date
- The Arboretum, Seoul National University
- Bulletin of the Seoul National University Arboretum, no.15, pp.1-11
- This study was conducted to measure shade tree health in major cities and to test the possibility of using the health data to indirectly estimate status of air pollution in the same areas. Zelkova serrata Makino planted as a shade tree in six largest cities and three industrial complexes was measured in mid August for growth increment, visible leaf damage, bark pH, chlorophyll and β-carotene contents, and tree vitality. The results were compared
with those of healthy trees in three mountain areas as a control. Chlorophyll and P -carotene
were extracted in dimethyl sulphoxide solution and quantified by spectrophotometry, while tree
vitality was estimated by measuring electrical resistance in the cambium using Shigometer.
Growth parameters such as new shoot length, number of leaves, or width of annual rings
varied widely in various locations. Visible leaf damage was observed in most of the sites
except mountain areas, with heaviest damage in industrial complexes. Chlorophyll and b
-carotene contents, bark pH, and tree vitality were lower in six major cities and lowest in
industrial complexes, compared to those in mountain areas. Tree vitality was positively
correlated with chlorophyll(?=0.58) and 8 -carotene content(?=0.55). and negatively correlated
with degree of leaf damage. Tree health can be estimated most successfully by combining
data on visible leaf damage, chlorophyll and P -carotene contents and electrical resistance.
Among the 19 sites surveyed in Seoul metropolitan areas, west side of Kangnam(south of
River Han) where Kuro and Yongdungpo industrial complexes were located showed lowest
tree health and Kangnam showed lower tree health than Kangpuk(north of River Han). It is
concluded that Zelkova serrata trees are sensitive to air pollution and can be used as a
bioindicator to indirectly monitor air pollution status in large cities and industrial complexes.