Litter decomposition in four woody species in a Mediterranean climate: Weight loss, N and P dynamics
Litter decomposition in four woody species in a Mediterranean climate: Weight loss, N and P dynamics
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DOI：
10.1006/anbo.2000.1269
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发表时间：
2000-12-01
期刊：
影响因子：
4.2
通讯作者：
Domingo, F
中科院分区：
文献类型：
--
作者：
Moro, MJ;Domingo, F
两种地中海灌木和两种松树生长在Sierra de Filabres（阿尔梅里亚）的叶和针叶的分解动态。西班牙）进行了为期2年的调查，使用垃圾袋技术。所研究的物种是研究区植被的代表，其叶性状差异很大。结果进行了讨论有关的初始窝质量（C，N和P），并通过应用的指数衰减模型。研究结束时质量损失的大小顺序为：海岸松<黑松<月桂叶岩蔷薇<腺果海桐。不同物种之间的年分解率的差异是一致的特定的化学和结构属性的叶子。2年后剩余的分解凋落物的质量与初始C：N比呈正相关。豆科牧草的失重和养分释放最快。去皮质激素结果表明，在地中海物种的分解动力学的初始凋落物的结构和元素浓度的重要性。(C)2000年《植物学年鉴》（Annals of Botany Company）
Decomposition dynamics in leaves and needles of two Mediterranean shrubs and two pine species growing in the Sierra de Filabres (Almeria. Spain) was investigated during 2 years using the litter bag technique. The species studied are representative of the vegetation of the study area and differ greatly in their foliar traits. Results are discussed in relation to the initial litter qualify (C, N and P) and through the application of the exponential decay model. The mass lost at the end of study varied in the order: Pinus pinaster < Pinus nigra < Cistus laurifolius < Adenocarpus decorticans. Differences in annual rates of decomposition among species are consistent with the particular chemical and structural attributes of their leaves. The mass of decomposing litter remaining after 2 years was positively associated with the initial C:N ratio. Weight loss and nutrient release were fastest in the leguminous A. decorticans. The results suggest the importance of both structure and elemental concentration of initial litter for decomposition dynamics in Mediterranean species. (C) 2000 Annals of Botany Company.