Effect of Air Pollution on the Primary Production of Pinus thunbergii Forest

대기오염(大氣汚染)이 곰솔림(林)의 물질생산(物質生産)에 미치는 영향(影響)

This study was performed to investigate the damage to the primary production of Pinus thunbergii forest from air pollution around the Yeochon Industrial Estate. The data were observed at 6 sites in the vicinity of the above area. The vitality of pine trees and the accumulation of the soluable sulfur and the fluorine were analyzed. Their value was generally increased near the source of air pollutants. The biomass density and annual net production were $1.01kg/m^3$, 5.90 t/ha/yr in the stand 4 respectively and $0.66kg/m^3$, 0.32t/hr/hr in the stand 3 respectively. The net assimilation rate was 0.4 - 1.6 kg/kg/yr and the efficiency of leaf to produce stem was 0.3 - 1.3 kg/kg/yr. The annual growth percentage of volume was 16.0% at the slightly damaged area and 4.0% at the severly damaged area. The maximum mean annual increment per tree was $0.0040m^3$ and $0.0008m^3$ in same order.

여천공업단지주변(麗川工業團地周邊)의 곰솔림(林)에 6개(個)의 조사지(調査地)를 설정(設定)하고, 대기오염물질(大氣汚染物質)이 곰솔림(林)의 물질생산량(物質生産量)에 미치는 영향(影響)을 조사(調査)하였다. 곰솔의 활력도(活力度)와 엽내(葉內)의 수용성(水溶性) 황(黃) 및 불소(弗素)의 함량(含量)은 오염원(汚染源)에 가까울수록 그 값이 증가(增加)하였다. 현존량밀도(現存量密度) 및 순생산량(純生産量)은 조사지(調査地)4가 각각(各各) $1.01kg/m^3$, 5.90t/ha/yr으로 가장 큰 값을, 조사지(調査地) 3이 각각(各各) $0.66kg/m^3$, 0.32t/ha/yr으로 가장 작은 값을 나타냈다. 잎의 순동화율(純同化率) 및 간재생산능률(幹材生産能率)은 각각(各各) 0.4~1.6kg/kg/yr, 0.3~1.3kg/kg/yr이었다. 최근(最近)의 연년재적생산율(連年材積生産率)은 피해(被害)가 경미한 지역(地域)이 16.0%이었으며, 심한 지역(地域)이 4.0%내외(內外)이었고, 단목당(單木當) 최대총평균생산량(最大總平均生産量)은 경미한 지역(地域)이 $0.0040m^3$이었고, 심한 지역(地域)이 $0.0008m^3$이었다.