Absorptive root areas of large pedunculate oak trees differing in health status along a road in South Bohemia, Czech Republic

Čermák, J.; Simon, Jaroslav; Hana, Káňová; Soňa, Tichá

doi:10.1016/j.ufug.2013.02.003

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…Although shallow soil drought did not play a major role at our study site, further research has to include estimates of δ 18 O isotope ratios of precipitation, plant tissues (xylem and foliage), and soil water in different soil depths (Sarris et al 2013), as well as the quantification of rooting depths (Waring & Running 1998). All these assessments should be combined with an evaluation of absorptive root areas in different soil layers by earth impedance methods (Cermak et al 2013), in order to assess the accessibility of different soil water horizons as sources for transpiration (Leo et al 2013) of trees and understory vegetation in inner Alpine dry valleys and other droughtprone areas indicated by low LAI, a low canopy coverage and a sparse understory.…”

Section: Discussionmentioning

confidence: 99%

Growing season water balance of an inner alpine Scots pine (Pinus sylvestris L.) forest

Wieser¹,

Gruber²,

Oberhuber³

2018

iForest

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We estimated components of the water cycle of a 150-year-old forest in an inner Alpine dry valley of the Tyrol, Austria throughout five growing seasons. Forest canopy transpiration () was measured by sap flow measurements scaled to the stand canopy level. Estimates of understory transpiration and forest floor evaporation () were derived from the soil water budget method, while interception () was modelled. Growing season cumulative evapotranspiration ( = + + ) varied between 256 and 322 mm or 51 to 79% of the growing season precipitation. The contribution of, , and to were 33, 40 and 27% respectively. Although these values of each layer (evapo)-transpiration are in good agreement with studies carried out in other European Scots pine forests, our estimated growing season total forest water use ( = +) of 200-244 mm is at the lower end of values reported for coniferous forest ecosystems, and thus reflects an adaptation to the low shallow soil water availability. We conclude that Scots pine forests in inner alpine dry valleys are able to cope with high evaporative demand, even when shallow soil water availability is limited.

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Section: Discussionmentioning

confidence: 99%

Growing season water balance of an inner alpine Scots pine (Pinus sylvestris L.) forest

Wieser¹,

Gruber²,

Oberhuber³

2018

iForest

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“…Related studies on tree-wind interactions have been carried out in many places over the world, such as Asia (Hong Kong [13], Macau [14], and Mainland China [15]), the United States [16][17][18], Canada [19][20][21], the United Kingdom [22,23], Europe (Portugal [24], Czech Republic [25], and Germany [26]), and Australia [27]. Meanwhile, the field measurements were conducted on many tree species, and the sample tree species can be categorized into deciduous broadleaf trees (Lime trees (Tilia × europaea) [28], Oak trees (Quercus) [16,25,29,30], Maple trees (Acer spp.) [26], Hickory trees (Carya spp.)…”

Section: Geographic Coveragementioning

confidence: 99%

A Review of Dynamic Tree Behaviors: Measurement Methods on Tree Sway, Tree Tilt, and Root–Plate Movement

Yang

Hui

Abbas

et al. 2021

Forests

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Urban forest ecosystems are being developed to provide various environmental services (e.g., the preservation of urban trees) to urban inhabitants. However, some trees are deteriorated asymptomatically without exhibiting an early sign of tree displacement, which results in a higher vulnerability under dynamic wind loads, especially during typhoon seasons, in the subtropical and tropical regions. As such, it is important to understand the tilt and sway behaviors of trees to cope up with the probability of tree failure and to improve the efficacy of tree management. Tree behaviors under wind loads have been broadly reviewed in the past literature, yet thorough discussions on the measurement methods for tree displacement and its analysis of broadleaf specimens are lacking. To understand the behavioral pattern of both broadleaf and conifer species, this paper presents a detailed review of sway behavior analysis from the perspectives of the aerial parts of the individual tree, including tree stem, canopy, and trunk, alongside a highlighted focus on the root–plate movement amid the soil-root system. The analytical approaches associated with the time-space domain and the time-frequency domain are being introduced. In addition to the review of dynamic tree behaviors, an integrated tree monitoring framework based on geographic information systems (GIS) to detect and visualize the extent of tree displacement using smart sensing technology (SST) is introduced. The monitoring system aims to establish an early warning indicator system for monitoring the displacement angles of trees over the territory of Hong Kong’s urban landscape. This pilot study highlights the importance of the monitoring system at an operational scale to be applicable in the urban areas showcasing the practical use of the Internet of Things (IoT) with an in-depth understanding of the wind-load effect toward the urban trees in the tropical and subtropical cities.

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“…In parks, the health of this tree species is mainly impacted by three factors: distance from the city center, proximity to thoroughfares, and emissions from the combustion of fossil fuels (Krzyżaniak et al, 2013;Krutul et al, 2014). The correct primary and secondary growth of oak trees in an urban space is also infl uenced by underground technical installations, typology of residential architecture, salinity associated with road maintenance in winter (Čermák et al, 2013;Ziemiańska and Suchocka, 2013), as well as the altered course of meteorological conditions under the infl uence of the "urban heat island" in relation to non-anthropogenic ecosystems (Szymanowski and Kryza, 2012;Majewski et al, 2014;Kalbarczyk et al, 2016).…”

Section: Introduction 1 Uvodmentioning

confidence: 99%

Dendroclimatological Analysis of Radial Growth of Old-Growth Oak (Quercus Robur L.) on the Oder River Floodbank in the City of Wrocław, South-Western Poland

2018

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The goal of this work was to study the temporal stability of the climate/growth relationship of 15 pedunculate oak trees in Wrocław, SW Poland. Furthermore, pointer years were defi ned and the span of their meteorological conditions was assessed. The tree-ring widths were measured with an accuracy of 0.01 mm using LINTAB TM 6 and the TSAP-Win software. The site chronology covered 128 years from 1887 to 2014. The tree rings were on average 3.56 mm wide and ranged from 2.10 to 5.43 mm. Their variation was signifi cantly infl uenced by temperature and precipitation. Tree-ring widths from 1965 to 2014 were most infl uenced (positively) by June precipitation in the year previous to the formation of the rings. From 1915 to 1964, the tree-ring widths were most strongly and negatively infl uenced by November precipitation recorded in the previous year. Ten pointer years were identifi ed, three of which were positive and seven negative. Both in the group of positive pointer years (

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Absorptive root areas of large pedunculate oak trees differing in health status along a road in South Bohemia, Czech Republic

Cited by 7 publications

References 18 publications

Growing season water balance of an inner alpine Scots pine (Pinus sylvestris L.) forest

Growing season water balance of an inner alpine Scots pine (Pinus sylvestris L.) forest

A Review of Dynamic Tree Behaviors: Measurement Methods on Tree Sway, Tree Tilt, and Root–Plate Movement

Dendroclimatological Analysis of Radial Growth of Old-Growth Oak (Quercus Robur L.) on the Oder River Floodbank in the City of Wrocław, South-Western Poland

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