Canopy transpiration of a Canary Islands pine forest

Luis, Vanessa C.; Jiménez, María Soledad; Morales, D.; Kučera, Jiří; Wieser, Gerhard

doi:10.1016/j.agrformet.2005.11.009

Cited by 45 publications

(45 citation statements)

References 33 publications

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“…Canary Island pine is found in areas ranging in precipitation from 200-1200 mm (Climent et al 2002;Climent et al 2004), indicating plasticity and tolerance of dry conditions. A study of this species in its native habitat (with annual precipitation = 638 mm) found an annual transpiration of 252 mm, which the authors suggested is below many other Mediterranean forest ecosystems (Luis et al 2005). That study presented only relativized sapflux density values, so we are unable to directly compare our values; however, we can reasonably conclude that Canary Island pine is adapted to be conservative in its water use and has strong stomatal control of water loss, unlike California sycamore.…”

Section: Cross-species Comparisons Of Water Usecontrasting

confidence: 41%

“…This response is somewhat contrary to a study of Canary Island pine in its native habitat. Luis et al (2005) found that the response of relativized sapflux to increasing VPD was saturating only during the dry (summer) season, but was linearly related to VPD during the wet (winter) season. One reason for the difference between our results and the previous study may be that the maximum "wet" season VPD observed in our study was ∼1 kPa greater than that observed in the native habitat study (Fig 4d; Luis et al 2005).…”

Section: Climatic Drivers Of Spatial Variability In Water Usementioning

confidence: 98%

“…In contrast, Canary Island pine is native to a Mediterranean climate that is similar to Southern California but can have higher annual precipitation (Luis et al 2005). Canary Island pine is found in areas ranging in precipitation from 200-1200 mm (Climent et al 2002;Climent et al 2004), indicating plasticity and tolerance of dry conditions.…”

Section: Cross-species Comparisons Of Water Usementioning

confidence: 99%

“…Sm.). California sycamore is native to riparian and canyon habitats in the Southern California region (Hickman 1993;Holstein 1984); Canary Island pine is native to a Mediterranean climate that is similar to Southern California (Luis et al 2005). We measured the same species at different sites and also compared the water relations of co-occurring species in order to address the following questions: How does water use vary between species?…”

Section: Introductionmentioning

confidence: 99%

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Drivers of variability in water use of native and non-native urban trees in the greater Los Angeles area

McCarthy

Pataki

2010

Urban Ecosyst

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Trees in urban ecosystems are valued for shade and cooling effects, reduction of CO 2 emissions and pollution, and aesthetics. However, in arid and semi-arid regions, urban trees must be maintained through supplemental irrigation, in competition with other water needs. Currently, a comprehensive understanding of the factors which influence water use of urban tree species is lacking. In order to study the drivers of whole tree water use of two common species in the Los Angeles Basin urban forest, four sites in Los Angeles and Orange County were instrumented with sap flow and meteorological sensors. These sites allowed comparisons of the water use of a native riparian (Platanus racemosa Nutt.; California sycamore) and non-native (Pinus canariensis C. Sm.; Canary Island pine) Mediterranean species, as well as the spatial variability in water use under different environmental and management conditions. We found higher rates of sapflux (J O ) in native California sycamore as compared to non-native Canary Island pine. Within each species, we found considerable site-to-site variability in the magnitude and seasonality of J O . For Canary Island pine, the majority of inter-site variability derived from differences in water availability: response to vapor pressure deficit was similar during a period without water limitations. In contrast, California sycamore did not appear to experience water limitation at any site; however, there was considerable spatial variability in water use, potentially linked to differences in nutrient availability. Whole tree transpiration (E) was similar for the two species when water was not limiting, but Canary Island pine was able to withstand unirrigated conditions with a very low E. These results add to the currently small pool of data on urban tree water use and ecophysiology, and contribute to establishing a more quantitative understanding of urban tree function.

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Section: Cross-species Comparisons Of Water Usecontrasting

confidence: 41%

Section: Climatic Drivers Of Spatial Variability In Water Usementioning

confidence: 98%

Section: Cross-species Comparisons Of Water Usementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Drivers of variability in water use of native and non-native urban trees in the greater Los Angeles area

McCarthy

Pataki

2010

Urban Ecosyst

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“…Means without common letters are significantly different at p < 0.05 according to t-test. Mean daily canopy conductance (g c , mm s −1 ) was estimated from canopy transpiration (E c , mm h −1 ) by using a simplified inverted Penman-Monteith equation (Luis et al, 2005):…”

Section: Sap Flux and Transpiration Measurementsmentioning

confidence: 99%

Effects of terracing on soil water and canopy transpiration of Pinus tabulaeformis in the Loess Plateau of China

Zhang

Wei

Chen

et al. 2017

Ecological Engineering

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a b s t r a c tTerracing has long been considered one of the most effective measures for soil water conservation and site improvement. However, few studies regarding the quantitative effects of terracing on soil water dynamics and vegetation water use efficiency were reported. To fill these knowledge gaps, in this study, soil water content and canopy transpiration from 2014 to 2015 were monitored in both terrace and slope environments in the semiarid Loess Plateau of China. Results showed that terracing had positive influences on soil water content among layers. Mean soil water content of the terrace site was 25.4% and 13.7% higher than that in the slope site in 2014 and 2015, and canopy transpiration at the terrace site increased by 9.1% and 4.8%, respectively. Canopy conductance at the terrace site was 3.9% higher than that at the slope site and it decreased logarithmically with the increase of vapor pressure deficit. This study highlighted the critical role of terracing in soil-water improvement and water-stress mitigation in semiarid environments. Thus, terracing has the potential to enhance sustainable vegetation restoration in water-limited regions.

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Energy partitioning and its controls over a heterogeneous semi‐arid shrubland ecosystem in the Lake Naivasha Basin, Kenya

et al. 2016

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This paper reports on the energy balance and partitioning analysed from 3-year micrometeorological flux measurements of energy and water fluxes over a heterogeneous semi-arid shrubland ecosystem in Lake Naivasha basin. The measurements enabled the characterization of the seasonal and interannual variability of the energy and water fluxes of the ecosystem covering two wet years (2012 and 2013) and one drought year (2014). On an annual scale, more than 60% of net radiation (Rn) was partitioned as latent (LE) and sensible (H) energy flux, with the latter being the larger consumer of Rn (~34%) and dominant for most months. The transition from H to LE dominance occurred from early noon to late afternoon in the wettest months of April and May. The residual energy balance closure term (C) accounted for between 25 and 40% of the Rn with the imbalance tending to be highest during periods of high insolation. Annual evapotranspiration was estimated at 873 mm, 632 mm and 537 mm for year 2012, 2013 and 2014 respectively. This accounted for at least 80% of the annual precipitation received for the respective years. Surface conductance (g s ) scaled significantly with leaf expansion and Priestley-Taylor α coefficient, but was limited during periods of drought because of inadequate soil moisture suggesting that, change in LE was paralleled by changes in green leaf area index. Low values of decoupling coefficient (Ω) during these periods indicated that evapotranspiration was strongly controlled by g s and vapour pressure deficit (VPD). However, under non-limiting moisture conditions evapotranspiration was decoupled from the atmosphere. This suggested that during the dry seasons and periods of prolonged drought, a lack of moisture in combination with high VPD leads to significant decreases in stomatal conductance that eventually limits partitioning of available energy into LE in the semi-arid ecosystem part of the Lake Naivasha basin. However, during wet season these factors are non-limiting and radiation is the dominant control of energy partitioning into LE in the ecosystem. The coupling and decoupling pattern provide insights towards formulating models that quantify evapotranspiration for ecosystems that experience seasonal shifts in controlling factors.

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Canopy transpiration of a Canary Islands pine forest

Cited by 45 publications

References 33 publications

Drivers of variability in water use of native and non-native urban trees in the greater Los Angeles area

Drivers of variability in water use of native and non-native urban trees in the greater Los Angeles area

Effects of terracing on soil water and canopy transpiration of Pinus tabulaeformis in the Loess Plateau of China

Energy partitioning and its controls over a heterogeneous semi‐arid shrubland ecosystem in the Lake Naivasha Basin, Kenya

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