Acid Rain Model: Canopy Module
Acid Rain Model: Canopy Module
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酸雨模型：冠层模块
DOI：
10.1061/(asce)0733-9372(1983)109:3(585
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发表时间：
1983
影响因子：
2.2
通讯作者：
R. Goldstein
中科院分区：
文献类型：
--
作者：
Carl W. Chen;R. Hudson;S. Gherini;J. D. Dean;R. Goldstein
冠层模型已被开发来计算穿透雨特性的基础上，冠层属性，环境空气质量，降水量和质量。考虑的过程包括湿和干沉积，叶分泌物，硝化作用，和氧化的SO2和NOx。该模型已被校准的数据收集在伍兹湖在纽约阿迪朗达克山脉。该模型较准确地模拟了穿透雨的体积和15种穿透雨化学成分的浓度。在冠层上积累的铵（NH4+）被迅速硝化，导致酸度和硝酸盐通量增加。针叶林冠层中发生的主导过程是干沉积。针叶林穿透雨酸度的富集主要来自酸性空气颗粒物的积累。在落叶冠层中发生的主要过程是渗出。这部分中和了酸性沉积物。
A canopy model has been developed to calculate throughfall characteristics based on canopy properties, ambient air quality, and precipitation quantity and quality. The processes considered include wet and dry deposition, leaf exudation, nitrification, and oxidation of SO2 and NOx. The model has been calibrated with data collected at Woods Lake in the Adirondack Mountains of New York. The model has accurately simulated throughfall volume and the concentration of 15 throughfall chemical constituents. Ammonium (NH4+) accumulated on the canopy is nitrified rapidly, resulting in an increase in acidity and nitrate fluxes. The dominant process occurring in the coniferous canopy is dry deposition. The enrichment of acidity in coniferous throughfall is derived primarily from the accumulation of acidic air particulates. The dominant process occurring in the deciduous canopy is exudation. This partially neutralizes the acidic deposition.