Earticle

본 연구는 기후변화로 인하여 조경식재공사 시 하자가 증가하고 있는 실정에서 조경식재공사 하자 저감 위한 소나무좀의 생태적 특성과 이를 방제하기 위한 수목보호기술에 대한 방제 효과를 검증하고자 하였다. 실험은 총 4단계로 구성하였으며, 1단계 설치시기별 소나무좀 발생현황 분석, 2단계 대상지별 소나무좀 발생 현황 분석, 3 단계 산림 외부거리별 소나무좀 발생 현황 분석, 4단계 수목 보호 기술별 방제 효과 분석을 실시하였다. 그 결과, 기후변화로 인해 소나무좀이 3월에 다수 출현하였으며, 도심지에 가까울수록 수목의 감수성이 높고 저항성이 낮아 소나무좀의 출현이 높았다. 또한, 산림 내부보다 외부에 소나무좀 개체수가 많이 출현하였다. 수목 보호 기술별 소 나무좀 방제 효과 결과, 황토 조성물 처리유형에서 가장 양호한 방제 효과를 보였으며, 향후 보다 정밀한 소나무 좀 생태 모니터링과 수목 보호 기술에 대한 검증이 필요할 것으로 판단되었다.

This study was conducted in a situation where defects are increasing during landscaping planting construction due to climate change. The ecological characteristics of pine beetle for reducing defects in landscaping planting work and the control effect of tree protection technology to control it were verified. The experiment consisted of 4 stages, step 1, Analysis of pine beetle occurrence status by installation period, step 2, Analysis of pine beetle occurrence status by target area, step 3, Analysis of pine beetle occurrence by distance outside the forest, step 4, Analysis of control effect by tree protection technology was conducted. As a result, many pine beetles appeared in March due to climate change, the closer to the urban area, the higher the sensitivity of trees and the lower the resistance, so the appearance of pine beetle was high. In addition, more pine beetle populations appeared outside than inside the forest. As a result of the control effect of pine beetle by tree protection technology, the best control effect was shown in the type of loess composition treatment, In the future, it was judged that precise ecological monitoring of pine beetle and verification of tree protection technology would be necessary.

Cullet-loess tile bodies are successfully fabricated using cullet, loess, hollow microspheres, and sintering additives (borosilicate glass frit, boric acid, or fumed silica) as starting materials. The effects of the additive composition and sintering temperature on the sintered density and flexural strength of the cullet-loess tile bodies are investigated. The sintered density of the cullet-loess tile bodies increases with an increase in the sintering temperature as a result of the enhanced densification of pore walls through the viscous flow of a liquid phase formed from the glass frit and sintering additives. The flexural strength of the cullet-loess tile bodies increases with increases in the sintering temperature and the cullet content in the starting composition. A maximal flexural strength of 40 MPa is obtained in cullet-loess tile bodies sintered with glass frit at $800^{\circ}C$ in air.