CAJ | 학술논문

以东北林业大学城市林业示范研究基地黄波罗、蒙古栎和白桦为研究对象，分析不同阔叶树树干不同部位Na 、Mg 、Ca 、Al 元素径向含量动态变化特征。结果表明，黄波罗、蒙古栎和白桦树干不同高度 Na 、Mg 、Ca 、Al 元素大多数径向格局呈现最高值出现在2000—2007年间，其他时间段含量较低且变化较为平缓的变化趋势。3个树种不同高度处 Ca 元素径向变幅最大，Na 最小，Mg 和 Al 居中；其中同一树高处蒙古栎 Ca 、Mg 、Al 元素径向变幅明显高于黄波罗和白桦。且随着树高升高，各元素径向变幅及不同树种同一元素平均含量差异呈减小趋势。以上树种树干不同部位各元素平均含量表现为：黄波罗 Na 、Al ，白桦 Mg 元素是其他树种的1．1～2．1倍；各树种 Ca 元素差异不大，比值在1．1～1．2之间。
이동북임업대학성시임업시범연구기지황파라、몽고력화백화위연구대상，분석불동활협수수간불동부위Na 、Mg 、Ca 、Al 원소경향함량동태변화특정。결과표명，황파라、몽고력화백화수간불동고도 Na 、Mg 、Ca 、Al 원소대다수경향격국정현최고치출현재2000—2007년간，기타시간단함량교저차변화교위평완적변화추세。3개수충불동고도처 Ca 원소경향변폭최대，Na 최소，Mg 화 Al 거중；기중동일수고처몽고력 Ca 、Mg 、Al 원소경향변폭명현고우황파라화백화。차수착수고승고，각원소경향변폭급불동수충동일원소평균함량차이정감소추세。이상수충수간불동부위각원소평균함량표현위：황파라 Na 、Al ，백화 Mg 원소시기타수충적1．1～2．1배；각수충 Ca 원소차이불대，비치재1．1～1．2지간。
@@@@Urban Forestry Demonstration Research Base ,Northeast Forestry University Taking Phellodendron amu-rense ,Quercus mongolica & Betula platyphylla grew in as the objects ,radial dynamic characteristics trunks of Na , Mg ,Ca ,Al element of different broadleaf trees within different parts were Analyzed .Result shows that :the high-est values of radial pattern of Na ,Mg ,Ca ,Al for trunks of Phellodendron amurense ,Quercus mongolica & Betula platyphylla with different heights appear from 2000 to 2007 ;other content is low and relatively flat .Radial ampli-tude of Ca are maximum ,Na is minimum ,Mg and Al are centered among three species at different heights ;radial amplitude of Ca ,Mg ,Al for Quercus mongolica are significantly higher than that of Phellodendron amurense and Betula platyphylla in the same tree height .And with the increase of the tree height ,the radial amplitude of each element and the differences of the average content of the same element in different species appear decreasing trend . Average content of each element of different parts for the trunk of the above species is as follows :Na & Al of Phel-lodendron amurense ,Mg element of Betula platyphylla is 1 .1-2 .1 times as large as that of the other species ;Ca element of each species is insignificant ,the ratio is from 1 .1 to 1 .2 .