Uptake of atmospheric ammonia by selected plant species.
Uptake of atmospheric ammonia by selected plant species.
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DOI：
10.1016/0098-8472(80)90022-2
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发表时间：
1980-08
影响因子：
5.7
通讯作者：
H. Rogers;V. Aneja
中科院分区：
文献类型：
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作者：
H. Rogers;V. Aneja
采用直接动力学技术测定了10种作物对nh3的吸收速率。采用为植物气体交换研究而设计的连续搅拌槽式反应器（CSTR）系统进行了nh3暴露试验。氨监测用分析仪，允许实时测量大气nh3低至5 ppb。这使得测量NH3at的动态吸收浓度比以前报道的更接近环境水平。吸收速率随光照、温度和nh3浓度的增加而增加。叶片总扩散阻力与氨吸附量呈负相关。随着重复暴露或生长介质N的变化，速率没有显著变化。
Rates of NH3uptake were measured for 10 crop species by direct kinetic techniques. A continuous stirred tank reactor (CSTR) system designed for plant gas exchange studies was used in the NH3exposures. Ammonia was monitored with an analyzer that permitted real time measurement of atmospheric NH3down to 5 ppb. This permitted measurement of dynamic sorption of NH3at concentrations much closer to ambient levels than previously reported. Uptake rates increased with increasing light, temperature, and NH3concentration. An inverse correlation was observed between total diffusion resistance of leaves and NH3sorption. Rates did not vary significantly with repeated exposure or with changes in growth media N.