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凋落物分解在森林生态系统养分循环及能量流动中具有十分重要的作用,为实现三倍体毛白杨纸浆林养分的科学管理,加快落叶分解,采用网袋法研究了2、4、6年生3个不同年龄的林分落叶在浅埋条件下的分解情况。结果表明:与在地表分解相比,浅埋显著促进了三倍体毛白杨落叶的分解,1年的分解率显著提高,分别为落叶在地表年分解率的130%、194%和186%;浅埋落叶分解50%所需天数分别只有地表的58%、39%和38%,而分解95%所需的天数分别只有地表的60%、38%和36%;浅埋对不同年龄林分落叶的促进程度不同。
In order to achieve the scientific management of the triploid poplar wood pulp nutrient and accelerate the decolonization, litter decomposition has played an important role in nutrient cycling and energy flow in forest ecosystems. Different ages of forest deciduous decomposition in shallow conditions. The results showed that, compared with the surface decomposition, the shallow decomposition significantly accelerated the decomposition of triploid poplar deciduous leaves, and the decomposition rate of one year was significantly increased, which was 130%, 194% and 186% respectively. The number of days required for the decomposition of 50% of the buried leaves was only 58%, 39% and 38% of the surface, respectively, while the number of days needed to decompose 95% was only 60%, 38% and 36% of the surface, respectively. The degree of promotion is different.