Environmental and plant-based controls of water use in a Mediterranean oak stand

Hernández‐Santana, Virginia; David, Teresa S.; Martínez-Fernández, José

doi:10.1016/j.foreco.2008.03.004

Cited by 41 publications

(37 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Daily modelled transpiration (E m ) ranged from 0.07 to 3.87 mm day À1 , similar to the measured transpiration ( Fig. 2a; Herná ndez-Santana et al, 2008b). E m was significantly correlated to solar radiation (R 2 = 0.61) and to vapour pressure deficit (R 2 = 0.67).…”

Section: Sapflow Datasupporting

confidence: 81%

“…In order to minimize the influence of non-uniform sap flux density profiles across the sapwood (Clearwater et al, 1999;James et al, 2002;Fiora and Cescatti, 2006), probes with a 1-cm heating length were installed (cf., James et al, 2002;Herná ndez-Santana et al, 2008b). One sensor per tree was inserted in the outer xylem at approximately breast height in 9 representative trees (Diameter at Breast Height, DBH: 16.2 AE 3.8 cm, Tree Height: 10.6 AE 2.5 m).…”

Section: Sap Flow Measurementsmentioning

confidence: 99%

“…In order to scale measurements of u i in trees where only singledepth sensors (0-1 cm) were used, a relationship was calculated between the K index at 0-1 cm and at 1-2 cm depths in the trees where both sensors were installed (cf., Lundblad et al, 2001;Herná ndez-Santana et al, 2008b). Total tree sap flow, F (m 3 s À1 ), was calculated as the product of sap flux density, u i , and the sapwood cross-sectional area at the heated probe level.…”

Section: Sap Flow Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Evaluating the effect of drier and warmer conditions on water use by Quercus pyrenaica

Hernández‐Santana

Martínez‐Vilalta

Martínez-Fernández

et al. 2009

Forest Ecology and Management

View full text Add to dashboard Cite

Section: Sapflow Datasupporting

confidence: 81%

Section: Sap Flow Measurementsmentioning

confidence: 99%

Section: Sap Flow Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Evaluating the effect of drier and warmer conditions on water use by Quercus pyrenaica

Hernández‐Santana

Martínez‐Vilalta

Martínez-Fernández

et al. 2009

Forest Ecology and Management

View full text Add to dashboard Cite

“…Upon rapidly changing weather conditions and low availability of the soil water, as much as half of the transpired water can be extracted from the water stored in the sapwood over short periods (Waring et al 1979;Phillips et al 2003;Č ermák et al 2007;Hernández-Santana et al 2008). Therefore, our results provide only a one-time estimate of the water storage in the Scots pine stand.…”

Section: Water In the Xylemmentioning

confidence: 86%

Above- and below-ground biomass, surface and volume, and stored water in a mature Scots pine stand

2014

View full text Add to dashboard Cite

This study describes the amount and the spatial distribution of the above-and below-ground tree skeletondefined as the woody structure of stem, branches and rootsin a mature Scots pine (Pinus sylvestris L.) stand in Belgium. Tree skeleton data were linked to the respective needle area, and as such, this work provides the background framework for modeling the tree hydraulic architecture and the carbon balance of the forest stand. Using validated allometric equations, we were able to calculate the amount of the volume, of the biomass and of the corresponding surface areas of individual trees in the stand. Total woody biomass of the 66-year-old forest stand was 155 Mg ha -1 , i.e., 126 Mg ha -1 above ground and 29 Mg ha -1 below ground. The total bio-volume of the woody mass of the stand was 314 m 3 ha -1 . The highest fraction of this value was the stem bio-volume, i.e., 236 m 3 ha -1 or 75 % of the total. The total volume of all roots was 57 m 3 ha -1 (18 % of the total volume), and the volume of branches was 20 m 3 ha -1 (7 % of the total volume). The surface area of the roots ranged from 38,000 m 2 ha -1 in the winter to 68,000 m 2 ha -1 in the spring. The surface area of the stems was 2,700 m 2 ha -1 , and the surface area of all branches reached 4,400 m 2 ha -1 . The total above-ground water storage in the xylem was 94 m 3 ha -1 (or 9.4 mm), while the accessible stored water was 2 mm of that quantity. A comparative analysis of the biometric parameters showed the balance between the different functionally connected, operational surface areas of the trees. The needle surface area was similar to the root surface area and in the same order of magnitude as the surface area of woody cambium. The results allow to link water uptake with transpiration and assimilation with respiration.

show abstract

“…The water-pumping effects of fast-growing tree plantations have been clarified in different ecosystems, such as in semiarid areas (Wilske et al 2009;Tan et al 2011) and wetlands (Le Maitre et al 2002;Hernández-Santana et al 2008;Migliavacca et al 2009). For example, poplar plantations have the potential to extract groundwater and to reduce the water table in wetland ecosystems (Migliavacca et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Physiological mechanism for the reduction in soil water in poplar (Populus deltoides) plantations in Dongting Lake wetlands

Qin

Xie

et al. 2013

Wetlands Ecol Manage

View full text Add to dashboard Cite

The use of large-scale tree plantations has provoked increasing concern regarding the negative effects on local environments in different ecosystems. However, the physiological mechanism underlying the reduction in soil water by tree plantations in wetlands is not clear. The aims of this study were to investigate the effects of poplar (Populus deltoides) plantations on soil water content and to elucidate the underlying physiological mechanisms. To this end, we conducted a 1-year fixed-plot investigation of soil water content (SWC), plant photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), and water-use efficiency (WUE) of individual leaves of 11-and 5-year-old poplars and of reed (Triarrherca sacchariflora, a native herbaceous plant) in the Dongting Lake wetlands, China. SWC was highest in reed, intermediate in 11-year-old poplar, and lowest in 5-year-old poplar, suggesting that poplar plantations produce a lower soil water content in wetlands. From May to July, Pn was significantly higher in reed than in the two poplar stands, but did not differ between the different-aged poplars. As a whole, Gs and Tr were higher, but WUE was lower, in the poplar stands than in reed during the growing season, indicating that Gs and Tr are the key physiological mechanisms associated with the lower soil water in poplar stands. Relationships among Pn, Gs, and Tr showed positive correlations (P \ 0.01) for each type of vegetation. These data suggest that poplar plantations may cause the transformation of wetlands into dry land due to a lower WUE leading to a massive water loss from soil. This, in turn, would have an influence on community composition and ecosystem function after establishment of the plantations.

show abstract

Environmental and plant-based controls of water use in a Mediterranean oak stand

Cited by 41 publications

References 45 publications

Evaluating the effect of drier and warmer conditions on water use by Quercus pyrenaica

Evaluating the effect of drier and warmer conditions on water use by Quercus pyrenaica

Above- and below-ground biomass, surface and volume, and stored water in a mature Scots pine stand

Physiological mechanism for the reduction in soil water in poplar (Populus deltoides) plantations in Dongting Lake wetlands

Contact Info

Product

Resources

About