CAJ | 학술논문

【目的】研究天山云杉Picea schrenkiana林森林凋落物组成及其动态变化．【方法】以国家级西天山自然保护区天山云杉林为研究对象，于2008年8月-2009年7月采集森林凋落物，用常规方法测定森林凋落物营养元素并分析年度动态变化．【结果和结论】天山云杉林年凋落量为2622.0 kg/hm2，各组成部分年凋落量差异较大，其中，叶凋落量最大，为1766.6 kg/hm2，凋落量主要集中在入冬前的秋季．凋落物营养元素中，常量元素土壤年归还量最多的是Ca元素，为60.83 kg/hm2，最少的是Mg元素，为3.66 kg/hm2，微量元素年归还量最多的是Fe元素，为1.98 kg/hm2，最少的是Cu元素，为0.22 kg/hm2．天山云杉林凋落物营养元素归还量是土壤肥力的重要补充来源，对天山云杉林土壤养分循环和树木生长具有极其重要的作用．
【목적】연구천산운삼Picea schrenkiana림삼림조락물조성급기동태변화．【방법】이국가급서천산자연보호구천산운삼림위연구대상，우2008년8월-2009년7월채집삼림조락물，용상규방법측정삼림조락물영양원소병분석년도동태변화．【결과화결론】천산운삼림년조락량위2622.0 kg/hm2，각조성부분년조락량차이교대，기중，협조락량최대，위1766.6 kg/hm2，조락량주요집중재입동전적추계．조락물영양원소중，상량원소토양년귀환량최다적시Ca원소，위60.83 kg/hm2，최소적시Mg원소，위3.66 kg/hm2，미량원소년귀환량최다적시Fe원소，위1.98 kg/hm2，최소적시Cu원소，위0.22 kg/hm2．천산운삼림조락물영양원소귀환량시토양비력적중요보충래원，대천산운삼림토양양분순배화수목생장구유겁기중요적작용．
[Objective]Studies of forest litter and its dynamic change of Picea schrenkiana.[Method]Based on samples from P.schrenkiana forest national nature reserve in western Tianshan Mountains , for-est litter and nine nutrients were tested from August 2008 to July 2009, and forest litter, nutrient ele-ments were determined and the annual dynamic change was analyzed .[Result and conclusion] Annual amount of litter was 2 622.0 kg/hm2 .There were significant differences of forest litter composition , with the higest being 1 766.6 kg/hm2 for leaf litter.For annual return of litter nutrients , macro-element Ca (60.83 kg/hm2 ) was the highest , while Mg (3.66 kg/hm2 ) was the lowest .For the trace elements Fe (1.98 kg/hm2 ) was the highest , while Cu (0.22 kg/hm2 ) was the lowest .The return amount of forest litter nutrients is important supplement source of soil fertility , which has an extremely important role in forest soil nutrient cycling and trees growth .