On the specific water holding capacity of litter for three forest ecosystems in the eastern foothills of the Alps
On the specific water holding capacity of litter for three forest ecosystems in the eastern foothills of the Alps
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DOI：
10.1016/j.agrformet.2019.107656
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发表时间：
2019-11
影响因子：
6.2
通讯作者：
Katalin Anita Zagyvai-Kiss;P. Kalicz;J. Szilágyi;Z. Gribovszki
中科院分区：
文献类型：
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作者：
Katalin Anita Zagyvai-Kiss;P. Kalicz;J. Szilágyi;Z. Gribovszki
森林生态系统通常在树冠层和地面上的枯落物上都具有较大的叶面积指数，这使得拦截成为森林水平衡的一个非常重要的因素。关于树冠拦截的信息非常广泛，但关于垃圾拦截的数据相对较少。枯落物层能够改变土壤入渗和径流的可用水量，因此枯落物的持水能力是水文模型的重要参数。在这项研究中，在阿尔卑斯山东部山麓的野外条件下测定了三种树种（云杉、山毛榉、无柄橡树）枯落物的持水能力。垃圾数据是通过两年（2003-2005）期间收集约 450-500 个样本而产生的。尽管林分的凋落物烘干重量不同，但针叶和阔叶森林生态系统的凋落物的比持水能力[升/千克烘干重量]几乎相同。根据我们的测量，无论树种如何，枯枝落叶的具体持水量约为 2.0–2.1 升 kg−1 烘干重量。
Forest ecosystems typically have a large leaf-area index both within the crown level and on the ground as litter, making interception a very important element of the forest water balance. Broad information exists about crown interception, but relatively few data are available regarding litter interception. The litter layer is able to change the quantities of water available for soil infiltration and runoff, so the water holding capacity of the litter is an important parameter for hydrological modelling. In this study the water holding capacity of the litter for three species (spruce, beech, sessile oak) was determined under field conditions in the eastern foothills of the Alps. Litter data were produced through a collection of about 450–500 samples over two years (2003–2005). Although the litter oven-dry weights of the forest stands were different, the specific water holding capacities [litres per kg oven-dry weight] of the litter were near-identical for needle-leaf and broad-leaf forest ecosystems. According to our measurements, the specific water holding capacity of the litter is about 2.0–2.1 litres kg−1oven-dry weight, regardless of the tree species.