Drought tolerance differs between urban tree species but is not affected by the intensity of traffic pollution

نویسندگان

چکیده

Abstract Key Message In an urban area, resistance and resilience of stem diameter growth differ substantially between tree species. Traffic emissions are reflected in wood nitrogen isotopes, but do not affect drought tolerance. With increasing heat, the benefits trees such as shading cooling become more important. Yet, it is necessary to identify species able withstand extreme climatic conditions. We studied five deciduous area Southwest Germany three exceptional periods (2003, 2011 2015) for differences within species, especially considering intensity traffic (NO x ). Analyses stable isotopic composition carbon (δ 13 C) oxygen 18 O) well intrinsic water-use efficiency (WUE i ) rings were carried out. Further, we investigated 15 N) assess its potential indicator NO from traffic. Stem all was strongly limited by low water availability spring, also elevated δ C O values Acer platanoides Tilia cordata , which particularly sensitive drought. contrast, Platanus × hispanica Quercus robur less affected drought, Carpinus betulus ranged between. Across N higher located closer roads exposed emissions. Unexpectedly, these conditions did significantly resistance/resilience. Our study demonstrates interpretative challenges coupled dendroecological isotope analyses. It indicates clear species-specific tolerance thus helps suitable

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ژورنال

عنوان ژورنال: Trees-structure and Function

سال: 2022

ISSN: ['0931-1890', '1432-2285']

DOI: https://doi.org/10.1007/s00468-022-02294-0