Litter Decomposition and Nutrient Release of Larix kaempferi Forest in Dalaoling Nature Reserve / 大老岭自然保护区日本落叶松林凋落物分解及养分释放研究

[Objective] To illustrate the effects of exotic species Larix kaempferi forest on soil nutrition.[Method] The litter decomposition and nutrient release of L. kaempferi forest in Dalaoling Nature Reserve were investigated using litter bag.[Result] It was showed that the litter decomposition and nutri...

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Bibliographic Details
Published inForest research (Beijing) Vol. 29; no. 3; p. 430
Main Authors 施妍, 陈芳清
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Forestry 01.01.2016
Subjects
Biomass energy
Decomposition
Forests
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Summary:[Objective] To illustrate the effects of exotic species Larix kaempferi forest on soil nutrition.[Method] The litter decomposition and nutrient release of L. kaempferi forest in Dalaoling Nature Reserve were investigated using litter bag.[Result] It was showed that the litter decomposition and nutrient release rates followed the order of:coniferous and broad leaved mixed forest >24-year-old L. kaempferi forest > 18-year-old L. kaempferi forest. The litter retention rate had an exponential relationship with time (R2>0.94, P<.001). The coefficients (K) of litter decomposition were 0.5556, 0.4450 and 0.3662 for the three forest types, respectively. The litter decomposition rate showed a significantly positive correlation with the initial N content (P<.01), but significantly negatively correlated with the C/N ratio (P<.05). Besides, high content of initial lignin inhibited the litter decomposition. C and K showed the direct release mode, while N and P followed a mode of concentration at first and then release. Th
ISSN:1001-1498