Relevance of Precipitation Partitioning to the Tree Water and Nutrient Balance

Aubrey, Doug P.

doi:10.1007/978-3-030-29702-2_10

Cited by 15 publications

(10 citation statements)

References 140 publications

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“…In this way, a spiderwort's (and other shallow‐rooted, short plants') capability to take up water into their vascular transport networks (through roots) may be tied, in part, to the stemflow mechanism transporting water to the roots. Competition among plants' roots for water below ground has been studied for decades (Aubrey, 2020), but our stemflow redirection results (Figure 4) suggest that competition for water may also (passively) occur above ground among plants' extravascular networks. Because stemflow is generally enriched in nutrients (Ponette‐González et al, 2020), the redirection of stemflow from neighbouring plants may, hypothetically, also redirect nutrients that were washed or leached from neighbouring canopies.…”

Section: Resultsmentioning

confidence: 70%

Grand theft hydro? Stemflow interception and redirection by neighbouring Tradescantia ohiensis Raf. (spiderwort) plants

Rivera

Stan

2020

Ecohydrology

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When it rains over vegetation, plants have an opportunity to get a limited supply of freshwater. A portion of rain drains directly to the soil down a plant stem in a hydrologic flux called "stemflow." For short plants with shallow roots, which provide ground cover for most vegetated ecosystems around the globe (including forest understories), stemflow has rarely been examined although it may be ecologically important. This study investigates how much rainwater is funnelled into stemflow for a perennial herb that can densely populate urban environments, Tradescantia ohiensis Raf., spiderwort), in Savannah, Georgia (USA). Given the stem density of spiderworts (19-31 stems m −2), experiments were conducted to assess whether and how much stemflow can be passively intercepted and diverted by leaves in contact with neighbouring plant stems. Spiderworts' stemflow represented a significant portion (20%-60%) of rain and neighbouring plants intercepted and diverted 50% of another plants' stemflow. This is the first documentation of stemflow interception and redirection by neighbouring plants, to the authors' knowledge. Because physical contact between plants occurs in various vegetated ecosystems (like lianas in forests), future research on this topic may be merited.

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Section: Resultsmentioning

confidence: 70%

Grand theft hydro? Stemflow interception and redirection by neighbouring Tradescantia ohiensis Raf. (spiderwort) plants

Rivera

Stan

2020

Ecohydrology

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“…and sugarcane plantations, with the latter being regularly burned (Tonello et al, 2021a). Comparing leaching of nutrients from deciduous tree species to those from coniferous tree species provides an inconsistent picture (Aubrey, 2020). Canopy leaching found to be higher for deciduous trees than for coniferous (Adriaenssens et al, 2012), whereas others found the opposite result (Berger et al, 2008).…”

Section: Tablementioning

confidence: 99%

“…The other parts of precipitation with contact to the canopy may be intercepted, building a short-term water storage pool, from which the three main water fluxescanopy interception, TF, and SFarise. Under certain conditions, water can also be absorbed by leaves and bark (Aubrey, 2020;Berry et al, 2019;Van Stan et al, 2021). Both meteorological factors and the canopy structure of forests affect rainfall partitioning.…”

Section: Introductionmentioning

confidence: 99%

Stem distance as an explanatory variable for the spatial distribution and chemical conditions of stand precipitation and soil solution under beech (Fagus sylvatica L.) trees

Jochheim¹,

Lüttschwager

Riek

2022

Preprint

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The partitioning of bulk precipitation (PR) in forest ecosystems and its chemical composition depends on both meteorological factors, such as precipitation amount and intensity, evaporation rate, and wind speed, and stand structural factors, such as stand density, canopy structure, bark texture, and spatiotemporal distribution and density of foliage. We analysed fluxes of water and element contained therein of a mature European beech (Fagus sylvatica L.) forest stand on sandy soils in northeastern Germany. We applied a radially symmetrical setup within a stem distance gradient to measure stand precipitation (SP) with its components of throughfall (TF) and stemflow (SF), as well as to measure soil moisture, the chemical composition of the soil solution, the soil chemistry, and the fine root distribution. The chemical analysis of the constituents covered the macroelements (Ca, Mg, K, Na, Al, Fe, Mn, Si, S, P), the cations and anions NH4+, NO3-, Cl-, SO42-, and a few heavy metals (Cu, Pb, Zn). With an average PR of 620 mm a-1, the partitioning resulted in 79% TF, 6% SF, and 15% canopy evaporation. TF volume increased with distance to stem during summer, but decreased during winter. Clear spatial gradients with increasing concentrations from PR, to different classes of TF as the distance from the trunk decreased, to SF were observed for nearly all elements. The contact of precipitation with leaves and the canopy structures alters the chemical composition of TF and SF by transferring elements from dry deposition or leaching of intracellular materials from the canopy and leads to the input of larger amounts of macroelements and heavy metals with the SP into the soil. Spatial patterns of canopy structures thus affect the spatial variation of TF and its constituents, which also affects the spatial distribution of roots and, at least in phases, the chemical composition of the topsoil solution.

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“…Additionally, forest canopies change precipitation partitioning that affects the nutrient cycling in the forest ecosystem: interception, throughfall, and stemflow [ 21 ]. Canopy partitioning can impact the dynamics of tree water and nutrient balances [ 22 ]. The minerals dissolved in interception can directly enter the plant through foliar and bark uptake, and also can reach forest soil via throughfall or stemflow.…”

Section: Introductionmentioning

confidence: 99%

“…The minerals dissolved in interception can directly enter the plant through foliar and bark uptake, and also can reach forest soil via throughfall or stemflow. Nutrients can also be leached from throughfall and stemflow and input into soils [ 22 ]. Interception as well as throughfall and stemflow are influenced by many features of the forest type, such as density, branch angle, the uniformity, bark characteristics, leaf shape and leaf area index [ 23 ], which are very complicated in forest ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Effects of Forest Type on Nutrient Fluxes in Throughfall, Stemflow, and Litter Leachate within Acid-Polluted Locations in Southwest China

Chen

Wang

Chen

et al. 2022

IJERPH

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Although new inputs of acidic anions are decreasing, soil acidification still deserves more academic attention because of the effects of historical stores of SO42− already absorbed into soils. Forest canopy has large, species-specific effects on rainwater chemistry, for which the hydrological mechanism remains unclear. We investigated precipitation, throughfall, stemflow, and litter leachate across three forest types in a severely acid-polluted site located in Southwest China. Precipitation monitored over 4 months, representing summer, fall, winter, and spring, indicated neutral precipitation in Tieshanping with pH ranging from 6.58–7.33. Throughfall and litter leachate in Pinus massoniana Lamb. stands were enriched with greater cation and anion fluxes, as well as more dissolved organic carbon (DOC) flux. Rainwater from pure stands of Cinnamomum camphora (Linn) Presl yielded lower N and DOC inputs to soils with higher base saturation, which would reduce soil acidification and, therefore, improve the sustainability of forest ecosystems.

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Relevance of Precipitation Partitioning to the Tree Water and Nutrient Balance

Cited by 15 publications

References 140 publications

Grand theft hydro? Stemflow interception and redirection by neighbouring Tradescantia ohiensis Raf. (spiderwort) plants

Grand theft hydro? Stemflow interception and redirection by neighbouring Tradescantia ohiensis Raf. (spiderwort) plants

Stem distance as an explanatory variable for the spatial distribution and chemical conditions of stand precipitation and soil solution under beech (Fagus sylvatica L.) trees

Effects of Forest Type on Nutrient Fluxes in Throughfall, Stemflow, and Litter Leachate within Acid-Polluted Locations in Southwest China

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