Influence of NH3and (NH4)2SO4on heathland vegetation
作者： L. J. Van Der Eerden , Th. A. Dueck , J. J. M. Berdowski , H. Greven , H. F. Van Dobben
DOI: 10.1111/J.1438-8677.1991.TB01559.X
关键词:
摘要: SUMMARY Heathland is currently being threatened by nitrogenous atmospheric deposition, mainly NHy (NH3 and NH+4). Deschampsia flexuosa Calluna vulgaris in monocultures were well able to use for biomass production, although the case of C. only shoot growth was stimulated increased its sensitivity drought heather beetle (Lochmaea suturalis). In a mixed culture D. flexuosa, latter species better competitor NHy. The relation between production stress also applied several other heathland species. A general effect threshold adverse effects NH3 on plants has been established with toxicological model: 270 8 μg m−3 daily annual mean, respectively. Heathland are relatively sensitive NHy.
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