CAJ | 학술논문

以东山岛滨海沙地主要优势树种的凋落物为对象，研究了其干质量热值与养分质量分数。结果表明：不同优势树种凋落物干质量热值以潺槁木姜子、木麻黄、湿地松最高，均在20．0 kJ/g以上，朴树、箣竹的凋落物干质量热值较低，为17．3～19．1 kJ/g；木麻黄、鳝藤、湿地松、箣竹凋落物的干质量热值在春季最高，潺槁木姜子、黄连木、朴树、雀梅藤、榕树凋落物的干质量热值在夏季最高。 C质量分数以湿地松最高，为50．25％，其次是木麻黄和潺槁木姜子，分别为49．87％和48．77％，木麻黄和湿地松凋落物中N、P、K质量分数均低于其他树种；不同优势树种凋落物热值与其C质量分数均呈极显著正相关（ P＜0．01），与其他养分质量分数相关均不显著。
이동산도빈해사지주요우세수충적조락물위대상，연구료기간질량열치여양분질량분수。결과표명：불동우세수충조락물간질량열치이잔고목강자、목마황、습지송최고，균재20．0 kJ/g이상，박수、책죽적조락물간질량열치교저，위17．3～19．1 kJ/g；목마황、선등、습지송、책죽조락물적간질량열치재춘계최고，잔고목강자、황련목、박수、작매등、용수조락물적간질량열치재하계최고。 C질량분수이습지송최고，위50．25％，기차시목마황화잔고목강자，분별위49．87％화48．77％，목마황화습지송조락물중N、P、K질량분수균저우기타수충；불동우세수충조락물열치여기C질량분수균정겁현저정상관（ P＜0．01），여기타양분질량분수상관균불현저。
With the litter of major dominant tree species in coastal sandy areas , we studied the calorific value and nutrient con-tent.The litter calorific values of Litsea glutinosa, Casuarina equisetifolia and Pinus elliottii were higher than that of other tree species, which were all above 20.0 kJ/g, and the litter calorific values of Celtis tetrandra subsp.sinensis and Bambusa blumeana were lower, in 17.3-19.1 kJ/g.The seasonal peak litter calorific values of Casuarina equisetifolia, Anodendron affine, Pinus elliottii and Bambusa blumeana appeared in spring , and that of Litsea glutinosa, Pistacia chinensis, Celtis tet-randra subsp.sinensis, Sageretia thea and Ficus microcarpa appeared in summer .The C content of 50.25%in litter of Pi-nus elil ottiiwas higher than that of other tree species , followed by Casuarina equisetifolia (49.87%) and Litsea glutinosa (48.77%).N, P and K contents in litter of Casuarina equisetifolia and Pinus elliottii were lower than those of other tree species .The litter calorific value had a highly significant positive correlation with C content ( P<0 .01) , but did not signifi-cantly correlated with other nutrient contents .