AI Article Synopsis
- The study analyzed rainfall and nitrogen input in three types of forests on Jinyun Mountain over a six-month period in 2012.
- Throughfall rates were high across all forest types, with bamboo forest showing the highest percentage at 85%, while stemflow rates were notably low.
- The concentration of nitrogen compounds in throughfall and stemflow exceeded those in atmospheric rainfall, with mixed conifer and broadleaved forests having the highest total inorganic nitrogen input.
Article Abstract
Evergreen broad-leaved forest (EBF), bamboo forest (BF) and mixed conifer and broadleaved forest (MF) were selected as objects of study on Jinyun Mountain from May to October 2012. The main contents were to analyze the rainfall process and nitrogen input of atmospheric rainfall, throughfall and stemflow. The results showed that: (1) During the research period, the total precipitation was 564. 88 mm, and throughfall of EBF, BF and MF were 74.0%, 85.0% and 71.6% of rainfall, respectively, and stemflow were EBF (1.9%), BF(10.3%) and MF (1.6%), respectively. The relationship between throughfall, stemflow and atmospheric rainfall could be described by a significant linear equation (P < 0.05), and both throughfall rate and stemflow rate had an obvious logarithmic function relationship with atmospheric rainfall (P < 0.05). (2) The concentration of NO3(-) and NH4(+) of throughfall and stemflow were higher than those of atmospheric rainfall, of which the three typical forests ranked as MF > EBF > BF. The total inorganic nitrogen input of throughfall and stemflow were EBF (14.93 kg x hm(-2)), BF (15.31 kg x hm(-2)) and MF (18.93 kg x hm(-2)), respectively. (3) There was a significant linear relationship between inorganic nitrogen input and throughfall, stemflow for three typical forest stands (P < 0.05).
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