CAJ | 학술논문

将杉木、楠木凋落叶及以二者不同比例混合的凋落叶置于果园林内进行分解和P、K动态的研究,结果表明：杉木和楠木凋落叶混合处理的分解速率均大于单独分解的纯杉木和纯楠木凋落叶.各凋落叶分解过程中,P浓度略有增加,而K浓度基本呈下降趋势.纯杉木凋落叶分解过程中P、K残留率均比纯楠木叶的低.杉楠混合分解的P、K释放率基本上大于单独的纯楠木叶.杉木与楠木凋落叶混合分解对其P和K的释放有一定的促进作用.
장삼목、남목조락협급이이자불동비례혼합적조락협치우과완림내진행분해화P、K동태적연구,결과표명：삼목화남목조락협혼합처리적분해속솔균대우단독분해적순삼목화순남목조락협.각조락협분해과정중,P농도략유증가,이K농도기본정하강추세.순삼목조락협분해과정중P、K잔류솔균비순남목협적저.삼남혼합분해적P、K석방솔기본상대우단독적순남목협.삼목여남목조락협혼합분해대기P화K적석방유일정적촉진작용.
Decomposition and the dynamics of P and K of single Cunninghamia lanceolata and Phoeba bournei leaf litter and their different mixtures were studied in an orchard.The results showed that the decomposition rates of litter mixtures between Cunninghamia lanceolata and Phoeba bournei were faster than those of single leaf litter.Concentrations of P in single and mixture of leaf litter appeared to increase and concentrations of K appeared to decrease during the decomposition.Percentages of P and K remaining were lower in single Cunninghamia lanceolata needle litter compared to single Phoeba bournei leaf litter.P and K release rates of leaf litter mixtures were faster than those of single Phoeba bournei leaf litter.Release rates of P and K were increased when leaf litter of Cunninghamia lanceolata and Phoeba bournei were mixed together.