Dead wood resources vary across different types of urban green spaces and depend on property prices
Arkadiusz Fröhlich , Michał Ciach
AbstractDead wood provides important ecosystem services and has a positive effect on biodiversity. However, urbanenvironments have limited resources of coarse woody debris (CWD). The presence of CWD depends on bothprogressive tree mortality and the frequency and intensity of CWD removal for safety or aesthetic reasons, whichcan lead to variations in CWD occurrence. The aim of this study was to assess the variation in the quantity andquality of CWD in urban green spaces and to assess the relationship between CWD resources and managementpolicy, ownership, economic parameters and factors accelerating tree mortality. Fallen logs, dead standing treesand dead tree branches (DTB) were surveyed on 488 sample plots selected at random in the city of Kraków(Poland). Distance to the river, coverage of impervious surfaces, environmental pollution, property prices andtypes of green space were used to explain the variation in CWD resources. CWD occurred on 46% of the sampleplots. DTB were the most frequent form of CWD (44% of plots), while dead standing trees were rare (4%) andfallen logs absent. The prevalence of CWD was the highest in forest remnants, followed by private gardens, urbanparks, fallow land and small green patches. DTB were the most abundant in the forest remnants. In both forestremnants and private gardens, the probability of CWD occurrence decreased with increasing property prices.Management policy and economy rather than factors accelerating tree mortality are suggested as shaping CWDresources in urban green spaces. The article highlights the importance of DTB as the most widespread form ofCWD and forest remnants as the type of green space having the most abundant resources of CWD. Sustainablemanagement of CWD resources within urban green spaces and environmental education are needed to conservebiodiversity and maintain ecosystem services.
|Journal series||Landscape and Urban Planning, ISSN 0169-2046, e-ISSN 1872-6062, (N/A 200 pkt)|
|Publication size in sheets||0.55|
|Keywords in English||Urban ecology, Dead trees, Crown deadwood, Tree dieback, Tree grooming, Saproxylic organisms|
|ASJC Classification||; ;|
|Publication indicators||: 2016 = 2.13; : 2018 = 5.144 (2) - 2018=6.571 (5)|
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