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首页> 外文期刊>Ecological research >Limit values for decomposition and convergence process of lignocellulose fraction in decomposing leaf litter of 14 tree species in a cool temperate forest
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Limit values for decomposition and convergence process of lignocellulose fraction in decomposing leaf litter of 14 tree species in a cool temperate forest

机译：温带温带森林中14种树种凋落物分解中木质纤维素组分分解和收敛过程的极限值

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摘要

We examined limit values for decomposition and lignocellulose index (LCI, the ratio of acid-soluble holocellulose to acid-soluble holocellulose plus acid-insoluble lignin and lignin-like substances) in leaf litter decomposition of 14 tree species over 3 years. The study was carried out on upper (moder) and lower parts (mull) of a forest slope that showed different humus accumulation forms in a cool temperate forest in Japan. Limit values for accumulated mass loss of litter ranged from 46.8% to 94.1% and were not different between the sites. Limit values were positively correlated to initial LCI and lignin content. Final values of LCI of 14 litter types at the end of the study period showed a convergent trend among litter types at 0.25-0.26 as compared to their initial values (0.41 mean). The final LCI was not different between the sites. A review of limit values and initial and final values of LCI in leaf litter of temperate and boreal forests indicated that the limit values and final LCI in litter types in Japan were lower than those in Europe and North America, which can be primarily ascribed to lower initial LCI in Japan.
机译：我们检查了14种树种在超过3年的分解过程中分解的极限值和木质纤维素指数（LCI，酸溶性全纤维素与酸溶性全纤维素加酸不溶性木质素和木质素样物质的比率）。该研究是在日本凉爽的温带森林中显示出不同腐殖质积累形式的林坡的上部（中部）和下部（草木）上进行的。垫料累积质量损失的极限值在46.8％至94.1％之间，并且在两个站点之间没有差异。限值与初始LCI和木质素含量呈正相关。在研究期结束时，14种垫料类型的LCI最终值显示，与初始值（平均值为0.41）相比，垫料类型之间的趋同趋势为0.25-0.26。站点之间的最终LCI相同。对温带和北方森林叶片凋落物极限值和初始和最终LCI值的审查表明，日本的凋落物类型的极限值和最终LCI低于欧洲和北美的极限值和最终LCI，其主要原因是日本最初的LCI。

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