Evapotranspiration Rates of Riparian Forests, Platte River, Nebraska, 2002-06

Landon, Matthew K.; Rus, David L.; Dietsch, Benjamin J.; Johnson, Michaela R.; Eggemeyer, Kathleen D.

doi:10.3133/sir20085228

Cited by 9 publications

(5 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Maximum E rates observed on a tree basis did not exceed 25 to 27·4 kg day −1 , in the dominant class, compared with the tree maximum rates of 15–19 kg day −1 and 5–7·3 kg day −1 observed in the co‐dominant and suppressed classes (Figure ). Daily values of E in J. virginiana on a tree basis in this study were significantly lower than the reported 48–62 l day −1 in a riparian area of Nebraska (where water is not limited, 844 mm year −1 during the year of study; Landon et al ., ), but are consistent with values reported for other Juniperus species (e.g. Lane and Barnes, ; Dugas et al ., ; Leffler et al ., ; Bendevis et al ., ; Huddle et al ., ).…”

Section: Resultssupporting

confidence: 92%

“…Studies conducted on the ecophysiology of J. virginiana and its potential impact on the ecohydrology in the Nebraska Sandhills and elsewhere have focused on years of average or below average precipitation (e.g. Eggemeyer et al ., , ; Landon et al ., ; Volder et al ., ). The aim of this study is to determine the intra‐annual variability and environmental controls over transpiration rates in a planted even‐aged (58 years) J. virginiana experimental forest with three canopy classes using sap flux techniques.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Intra‐annual variability and environmental controls over transpiration in a 58‐year‐old even‐aged stand of invasive woodyJuniperus virginianaL. in the Nebraska Sandhills, USA

et al. 2012

View full text Add to dashboard Cite

We investigated the intra‐annual variability and environmental controls over transpiration (E) in a planted, even‐aged (58 years; 537 trees ha−1), experimental forest of invasive native Juniperus virginiana in the Nebraska Sandhills, with three canopy classes (dominant, co‐dominant, and suppressed) by using sap flux techniques, in a year where drought was absent (2008, 34% above average precipitation). Daily E was closely linked to growing‐season length and variability in the environment. Minimum and average daily air temperatures, photosynthetically active radiation, and precipitation explained the majority of the intra‐annual daily variability in E. Vapour pressure deficit was a significant factor in spring and summer, shallow volumetric soil water content (VSWC 0·2 m) was important during summer particularly June, and deep VSWC (0·6 m) was a significant factor in January and August. E was highest in the dominant trees and contributed to the majority (~77%) of stand transpiration (Ec) on site because of their larger canopy size, greater tree density, more leaf area, and accessibility to water resources compared with the co‐dominant and suppressed tree canopies, which contributed to 16% and 7%, respectively. Ec averaged ~413 mm year−1, corresponding to ~24% of potential evapotranspiration. Soils were significantly drier in the J. virginiana stand than in adjacent C4‐dominated grasslands, which could be due to the longer growing season over which physiological activity extends in J. virginiana compared with C4‐dominated grasslands in the region and precipitation interception by the canopy and forest floor, which evaporates before reaching the soil. Copyright © 2012 John Wiley & Sons, Ltd.

show abstract

Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 98%

Intra‐annual variability and environmental controls over transpiration in a 58‐year‐old even‐aged stand of invasive woodyJuniperus virginianaL. in the Nebraska Sandhills, USA

et al. 2012

View full text Add to dashboard Cite

show abstract

“…have the potential to consume large quantities of water. In a riparian area where soil water was not limiting, a 15‐cm DBH J. virginiana tree used between 48 and 62 l day −1 (Landon et al ., ). Even though both were located in semiarid environments, a Juniperus occidentalis tree of 44 cm basal diameter used up to 132 l day −1 (Eddleman and Miller, ), and Juniperus ashei trees with an average of 23 m 2 canopy area used between 20 and 125 l day −1 (Owens, ).…”

Section: Discussionmentioning

confidence: 97%

Water use of Juniperus virginiana trees encroached into mesic prairies in Oklahoma, USA

et al. 2013

View full text Add to dashboard Cite

Juniperus virginiana (eastern redcedar) is encroaching into mesic prairies of the southern Great Plains, USA, and is altering the hydrologic cycle. We used the thermal dissipation technique to quantify daily water use of J. virginiana into a mesic prairie by measuring 19 trees of different sizes from different density stands located in north-central Oklahoma during 2011. We took the additional step to calibrate our measurements by comparing thermal dissipation technique estimates to volumetric water use for a subset of trees. Except for days with maximum air temperature below À3°C, J. virginiana trees used water year round, reached a peak in late May, and exhibited reduced water use in summer when soil water availability was low. Overall daily average water use was 24 l (±21.8 l s.d.) per tree. Trees in low density stands used more water than trees with similar diameters from denser stands. However, there was no difference in water use between trees in different density stands when expressed on a canopy area basis. Approximately 50% of variation in water use that remained after accounting for the factors site, tree, and day was explained using a physiologically-based model that included daily potential evapotranspiration, maximum vapour pressure deficit, maximum temperature, solar radiation, and soil water storage between 0 and 10 cm. Our model suggested that a J. virginiana woodland with a closed canopy is capable of transpiring almost all precipitation reaching the soil in years with normal precipitation, indicating the potential for encroachment to reduce water yield for streamflow and groundwater recharge.

show abstract

“…CREMAP‐ET rates in the Platte River Valley were verified by flux‐tower measurements at two different locations, employing eddy‐covariance systems (Landon et al 2009). The estimated mean annual ET rates were within 3 and 6% of the flux‐tower‐derived values (Szilagyi et al 2011a).…”

Section: Estimation Of the Rn(d) Functionmentioning

confidence: 99%

Net Recharge vs. Depth to Groundwater Relationship in the Platte River Valley of Nebraska, United States

2012

View full text Add to dashboard Cite

One-km resolution MODIS-based mean annual evapotranspiration (ET) estimates in combination with PRISM precipitation rates were correlated with depth to groundwater (d) values in the wide alluvial valley of the Platte River in Nebraska for obtaining a net recharge (Rn) vs. d relationship. MODIS cells with irrigation were excluded, yielding a mixture of predominantly range, pasture, grass, and riparian forest covers on sandy soils with a shallow groundwater table. The transition depth (dt ) between negative and positive values of the net groundwater recharge was found to be at about 2 (±1) m. Within 1 (±1) m of the surface and at a depth larger than about 7 to 8 (±1) m, the mean annual net recharge became independent of d at a level of about -4 (±12)% and 13 (±10)%, respectively, of the mean annual precipitation rate. The obtained Rn(d) relationship is based on a calibration-free ET estimation method and may help in obtaining the net recharge in shallow groundwater areas of negligible surface runoff where sufficient groundwater-depth data exist.

show abstract

Evapotranspiration Rates of Riparian Forests, Platte River, Nebraska, 2002-06

Cited by 9 publications

References 45 publications

Intra‐annual variability and environmental controls over transpiration in a 58‐year‐old even‐aged stand of invasive woodyJuniperus virginianaL. in the Nebraska Sandhills, USA

Intra‐annual variability and environmental controls over transpiration in a 58‐year‐old even‐aged stand of invasive woodyJuniperus virginianaL. in the Nebraska Sandhills, USA

Water use of Juniperus virginiana trees encroached into mesic prairies in Oklahoma, USA

Net Recharge vs. Depth to Groundwater Relationship in the Platte River Valley of Nebraska, United States

Contact Info

Product

Resources

About