심재
‘심재’의 한 예를 그린 그림입니다.
Heartwood in a black walnut trunk cross-section (Juglans nigra)
모든 언어
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참고 자료
- US Forest Products Laboratory Wood Handbook — heartwood is the darker non-conductive interior core surrounded by lighter sapwood
- USDA Forest Service technology-transfer sheet — black walnut sapwood is nearly white while its heartwood ranges to dark chocolate brown
- Penn State Extension — black walnut commonly has a large dark central heartwood zone surrounded by lighter sapwood