Root-system characteristics of plantation-grown Populus tomentosa adapted to seasonal fluctuation in the groundwater table

Di, Nan; Liu, Yang; Mead, D. J.; Xie, Yongdong; Jia, Liming; Xi, Benye

doi:10.1007/s00468-017-1619-2

Cited by 24 publications

(8 citation statements)

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“…This is most likely due to the deep rooting characteristics of this species, so that it can extract water from deep soil layers, in the case of surface soil water deficit, to meet the high transpiration rate (Xi et al, 2018;Li et al, 2020). Chen et al (2014), Di et al (2018), Sun et al (2018) andYu et al (2018) also reported that poplar roots can access deep soil water to alleviate water stress and help trees survive drought. Similarly, for other woody species, some studies also reported plants exploiting water reserves from deeper soil layers (David et al, 2004;Hernández-Santana et al, 2008;Thomas et al, 2006).…”

Section: Environment and Plant Controls Of Tree Water Usementioning

confidence: 99%

Understanding the relationship between biomass production and water use of Populus tomentosa trees throughout an entire short-rotation

Liu

Verhoef

et al. 2021

Agricultural Water Management

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Section: Environment and Plant Controls Of Tree Water Usementioning

confidence: 99%

Understanding the relationship between biomass production and water use of Populus tomentosa trees throughout an entire short-rotation

Liu

Verhoef

et al. 2021

Agricultural Water Management

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“…At the groundwater level of GW3 (1.18 m), the soil water and salt conditions of the T. chinensis forest were relatively suitable, the respiration of the fine roots of T. chinensis decreased, and the fine root life increased. Under relatively high and low groundwater levels, the fine roots had higher N content and lower C/N ratios, it could improve its adaptability to high salinity and Sun et al 10.3389/fpls.2022.952830 Frontiers in Plant 10 frontiersin.org low water content environments by increasing the turnover rate of fine roots and enhancing their metabolism (Di et al, 2018). Nonstructural carbohydrates are composed of starch and soluble sugar, which are synthesized by plant leaves through photosynthesis and transported to the root system.…”

Section: Discussionmentioning

confidence: 99%

Response of the fine root morphological and chemical traits of Tamarix chinensis to water and salt changes in coastal wetlands of the Yellow River Delta

et al. 2022

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To explore the adaptation of the fine root morphology and chemical characteristics of Tamarix chinensis to water–salt heterogeneity in the groundwater–soil system of a coastal wetland zone, T. chinensis forests at different groundwater levels (high: GW1 0.54 m and GW2 0.83 m; medium: GW3 1.18 m; low: GW4 1.62 m and GW5 2.04 m) in the coastal wetland of the Yellow River Delta were researched, and the fine roots of T. chinensis standard trees were excavated. The fine roots were classified by the Pregitzer method, and the morphology, nutrients, and nonstructural carbohydrate characteristics of each order were determined. The results showed that the groundwater level had a significant indigenous effect on the soil water and salt conditions and affected the fine roots of T. chinensis. At high groundwater levels, the specific root length and specific surface area of fine roots were small, the root tissue density was high, the fine root growth rate was slow, the nutrient use efficiency was higher than at low groundwater levels, and the absorption of water increased with increasing specific surface area. With decreasing groundwater level, the N content and C/N ratio of fine roots first decreased and then increased, and the soluble sugar, starch, and nonstructural carbohydrate content of fine roots first increased and then decreased. At high and low groundwater levels, the metabolism of fine roots of T. chinensis was enhanced, and their adaptability to high salt content and low water content soil environments improved. The first- and second-order fine roots of T. chinensis were mainly responsible for water and nutrient absorption, while the higher-order (from the third to fifth orders) fine roots were primarily responsible for the transportation and storage of carbohydrates. The fine root morphology, nutrients, nonstructural carbohydrate characteristics, and other aspects of the water and salt environment heterogeneity cooperated in a synergistic response and trade-off adjustment.

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“…In reality, characterizing partitioning is a very challenging task controlled by variables like soil hydraulic properties and root distribution (Chen et al., 2020; Shah et al., 2007). For example, thin roots with a diameter <2 mm are most often observed at the top soil layers within the vadose zone (Di et al., 2018), whereas at deeper saturated layers thicker roots are observed as a result of waterlogging potentially causing the death of thin roots due to low oxygen levels (Naumburg et al., 2005). With finer roots being more efficient in water uptake (Pregitzer et al., 2002), the partitioning of ET to vadose zone and saturated soil can certainly deviate from the uniformity assumption.…”

Section: Methodological Limitations and Discussionmentioning

confidence: 99%

Influence of Shallow Groundwater Evapotranspiration on Recharge Estimation Using the Water Table Fluctuation Method

Boumis

Kumar

Nimmo

et al. 2022

Water Resources Research

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Groundwater is a vital resource for both natural ecosystems and humans (Wada et al., 2014). Over 2 billion people rely on groundwater as their main freshwater resource (Famiglietti, 2014). Groundwater is also extensively used in irrigated agriculture (Siebert et al., 2010). The increased water extraction to satisfy human needs has led to groundwater depletion in many parts of the world (Aeschbach-Hertig & Gleeson, 2012;Rodell et al., 2009;Scanlon et al., 2007). Given these evolving challenges, which are expected to get worse with increasing population, assessment of groundwater recharge, that is, the amount of water that replenishes aquifers after escaping the vadose zone , is crucial for sustainable management and development of groundwater resources (Moon et al., 2004). Groundwater recharge is, however, an inherently complex process controlled by multiple factors including climate, geomorphology, vegetation characteristics and antecedent soil moisture conditions, among others (De Vries & Simmers, 2002). Several methods to obtain estimates of groundwater recharge exist, including those based on direct measurements (Flint et al., 2002) and indirect methods that often use empirical models (Reitz & Sanford, 2020), physically based land surface models (

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Root-system characteristics of plantation-grown Populus tomentosa adapted to seasonal fluctuation in the groundwater table

Cited by 24 publications

References 50 publications

Understanding the relationship between biomass production and water use of Populus tomentosa trees throughout an entire short-rotation

Understanding the relationship between biomass production and water use of Populus tomentosa trees throughout an entire short-rotation

Response of the fine root morphological and chemical traits of Tamarix chinensis to water and salt changes in coastal wetlands of the Yellow River Delta

Influence of Shallow Groundwater Evapotranspiration on Recharge Estimation Using the Water Table Fluctuation Method

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