凋落物分解模型与土壤动物的作用

土壤动物对凋落物的分解作用，是研究森林系统营养物质循环的一重要课题，但在森林生态系统有土壤动物作用下，凋落物的分解模式及土壤动物对分解过程的作用尚未见报道．本文将报告长白山北坡凋落物在有土壤动物作用下的分解模式及土壤动物在分解过程中的功能与作用．

A Study on a Model of Leaf Litter Decomposition by Soil Animals

A three year experienment of litter decomposition has been carriedout since with two comparison series of(1)attacked by baoterium only,and(2)atta-cked by soil animals and bacterium,the summer of 1990 in Korean pine-broadleafmixed forest at changbaishan. The result of the experiment indicates that the leaflitter of three dominant trees,e. g. Korean pine, Linden and Oak,has not yet totalldisappeared.The decomposition rates shows a tendency of gradualy increasingwith time. The constance K of the decomposition is 0. 0255,which could be treatedas a comparable parameter for further comparisonstudy between different habitatsin the area of Changbaishan. A rather intensive disappearance of the leaf litter serhappened in a period of time between May 20 and October 20 with an amount of17.30 per cent of the total.An influence of seasonal variation could be shown infig 1 and 2,but due to a bit of inadequate sampling,it could not give a generalmodel.