Decomposition of Fine Root and Woody Litter
Decomposition of Fine Root and Woody Litter
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DOI：
10.1007/978-3-642-38821-7_8
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
B. Berg;C. Mcclaugherty
中科院分区：
文献类型：
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作者：
B. Berg;C. Mcclaugherty
大多数关于森林凋落物分解的研究都集中在叶凋落物上，因为叶凋落物的数量很大，而且养分含量相对较高。凋落物为土壤提供了重要的有机质和养分转移，其沉积模式在时间上是有规律的，在空间上是相当均匀的。木质和细小(小直径)根凋落物也可以为森林土壤贡献大量的有机质。细根凋落物的投入在不同生态系统之间差异很大，但至少在某些生态系统中，它们代表着与叶凋落物相同数量的有机质和养分向土壤的转移。木质凋落物在时间和空间上是零星的。在受管理的森林中，它的沉积可能可以忽略不计。
Most studies of litter decomposition in forests have focused on foliar litters because of their large amounts, and relatively high nutrient contents. Foliar litter provides an important transfer of organic matter and nutrients to the soil, and the patterns of its deposition are temporally regular and spatially rather uniform. Woody and fine (small diameter) root litter can also contribute large amounts of organic matter to forest soils. Fine root litter inputs are highly variable across ecosystems, but in at least some ecosystems, they represent a transfer of organic matter and nutrients to the soil of the same magnitude as that of foliar litter. Woody litter is deposited sporadically in time and space. Its deposition may be negligible in managed forests.