본 연구는 비자나무 임분내의 NVOCs 잔존량을 규명하고 비자나무에서 방출되는 NVOCs의 성분을 규명하고자 수행하였다. 실험은 2017년 4월부터 10월까지, 총 7회에 걸쳐 장성군에 위치한 내장산국립공원 백양지구 내 비자나무 임분에서 이루어졌다. NVOCs의 포집은 가지에 테틀러백을 씌우고 순수공기를 주입시켜 11시부터 12시까지 포집하는 테틀러백 법과 임분 내에서 직접 포집하는 미니펌프법으로 실시하였다. 테틀러백을 이용한 비자나무의 월별 NVOCs 잔존량은 각각 146,156 pptv/4월, 176,786 pptv/5월, 132,466 pptv/6월, 22,908pptv/7월, 73,782pptv/8월, 38,736pptv/9월, 41,233pptv/10월로 측정되었으며, 비자나무 임분 내에서 측정한 월별 NVOCs는 5,169 pptv/4월, 11,940 pptv/5월, 7,657 pptv/6월, 6,864pptv/7월, 13,912pptv/8월, 2,640pptv/9월, 1,828pptv/10월로 나타났다. NVOCs의 15종에 대한 성분을 7회 평균값을 산출한 결과, limonene이 약 43∼52%로 가장 많은 함량을 차지하고 있었으며 α-pinene 은 약 35∼39%의 비율인 것으로 분석되었다. 비자나무를 대상으로 포집방법의 차이에 따른 NVOCs 잔존량은 최소 15배에서 28배까지 차이를 보였으며, NVOCs 성분의 대부분이 limonene과 α-pinene으로 나타났다. 임분내 NVOCs에 대한 기초자료로서 활용될 수 있을 것으로 사료된다.

This study aims to identify the NVOCs(Natural Volatile Organic Compound) retention volume of Torreya nucifera stand and the characteristic of chemical compositions of the NVOCs emitted from it. This experiment was performed seven times in total from April to October, 2017 at Torreya nucifera temple forest of Naejangsan National Park Baekyangsa in Jangseong-gun. Two methods were used as the sampling methods of NVOCs. The first one was to use tedlar bags. After placing a tedlarbag over a branch and leafs, we injected pure air into it and captured NVOCs for 2 hours from 11 a.m. to 12 p.m. The second one was to capture NVOCs directly in a stand of Torreya nucifera used mini pump. When tedlarbags were used, the monthly NVOCs retention volumes of Torreya nucifera were 146,156pptv/April, 176,786pptv/May and 132,466pptv/June, 22,908pptv/July, 73,782pptv /August, 38,736pptv/September, 41,233pptv/October respectively. In addition, when measured using minipump in the stand, the monthly NVOCs retention volumes were 5,169 pptv/April, 11,940pptv /May, and 7,657pptv/June, 6,864pptv/July, 13,912pptv/August, 2,640pptv/September, 1,828pptv/October respectively. In order to identify the characteristic of compositions, 15 kinds of terpenes were analyzed, and their average was calculated seven times. As a result, limonene had the highest percentage of 43 to 52%, and α-pinene accounted for 35 to 39%. The NVOCs retention volume depended on the sampling method from Torreya nucifera stand. The highest NVOCs retention volume was at least 15 to 28 times higher, and most components of NVOCs were limonene and α-pinene. It is believed that NVOCs within the domain can be utilized as a baseline.