경기도 광주 지역 36년생 리기다소나무림의 바이오매스와 에너지량

Biomass and Energy Content of Pinus rigida Stand in Gwangju, Gyeonggi Province

경기 태화산 북서사면(해발 250m) 36년생 리기다소나무림의 바이오매스는 수간 목부 166.1ton/ha, 수간 수피부 22.4ton/ha, 가지 51.9ton/ha, 고사지 16.0ton/ha, 당년생 잎 3.8ton/ha, 전년생 잎 6.6ton/ha, 구과 1.3ton/ha로서 지상부 252.0ton/ha로 나타났다. 또한 연간 순생산량은 수간 목부 15.4ton/ha/yr, 수피 1.7ton/ha/yr, 가지 5.2ton/ha/yr, 당년생 잎 3.8ton/ha/yr, 구과 1.3ton/ha/yr, 지상부 27.4ton/ha/yr로 추정되었다. 리기다소나무림 지상부의 에너지량은 5,434GJ/ha, 연간 에너지 고정량은 597GJ/ha/yr로 나타났다. 리기다소나무림의 광합성부는 지상 5.2m부터 시작되고 최대 광합성부는 지상 11-13m 사이의 높이에 나타났다.

This study was conducted to understand the biomass and the energy content of 36-year-old Pinus rigida stand planted in Mt. Taehwa, Gwangju-si, Gyeonggi-do, Korea. The total biomass of aboveground was 252.0 ton/ha (65.9% from stemwood, 8.9% from stembark, 20.6% from live branches, 1.5% from current leaves, 2.6% from previous leaves, and 0.5% from cones). Annual net production (ANP) of aboveground was 27.4 ton/ha/yr, and the ratio of stemwood, stembark, live branches, current leaves, and cones to ANP of aboveground total, 56.3%, 6.1%, 19.1%, 13.9%, and 4.6%, respectively. Energy content of aboveground was 5,434 GJ/ha, and annual energy accumulation was 597 GJ/ha/yr. Photosynthetic layer of P. rigida was shown at about 5.2 m in height, and maximum needle amount of crown at 11 to 13 m in height.