Throughfall Measurements of Nitrogen and Sulphur Compounds
Throughfall Measurements of Nitrogen and Sulphur Compounds
复制标题
氮和硫化合物的渗透测量
DOI：
10.1080/03067319308027581
复制
发表时间：
1993
影响因子：
2.6
通讯作者：
M. Ferm
中科院分区：
文献类型：
--
作者：
M. Ferm
摘要利用保存和未保存的收集器研究了瑞典云杉林边缘氮和硫化合物的湿沉降和穿透沉降。在温暖的一年的无机氮损失在未保存的穿透收集器，如果他们没有遮光。需要几天的光照才能将大部分铵转化为有机形式。添加葡萄糖可提高该速率。高穿透沉积的有机氮已被发现使用保存收集器。穿透雨中有机氮的来源尚不清楚，但它似乎可能来自干湿沉积铵的转化。干沉降的粗略估计是由森林内外的空气浓度测量。SO_2、HNO_3和NH_3的干沉降比颗粒沉降更为显著。
Abstract The wet- and throughfall deposition of nitrogen and sulphur compounds to a spruce forest edge in Sweden was studied using preserved as well as unpreserved collectors. During the warmer part of the year inorganic nitrogen was lost in unpreserved throughfall collectors, if they were not shielded from light. Several days of light exposure was needed to transform most of the ammonium, most likely to an organic form. The rate was enhanced by the addition of glucose. High throughfall deposition of organic nitrogen has been found using preserved collectors. The origin of this organic nitrogen in throughfall is not clear, but it seems likely that it comes from transformation of wet and dry deposited ammonium. Rough estimates of the dry deposition were made from air concentration measurements inside and outside the forest. The dry deposition of SO2, HNO3 and NH3 was more significant than their particulate forms.