Altered water uptake patterns of Populus deltoides in mixed riparian forest stands

Zhang, Beibei; Xu, Qing; Gao, Deqiang; Jiang, Chunwu; Liu, Futing; Jiang, Jing; Wang, Ting

doi:10.1016/j.scitotenv.2019.135956

Cited by 23 publications

(12 citation statements)

References 39 publications

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“…Interestingly, we found that leaf biomass had an opposite effect on the percentage of water absorbed by Chinese fir between shallow and deep soils ( Figure 5 ). This was consistent with the findings of Zhang et al (2020) , who noted that the contrary effect was associated with transpiration. Given that transpiration is the driving force of plant water uptake and that the strength of transpiration is generally reflected by leaf biomass ( Forrester et al, 2010 ; Rothfuss and Javaux, 2017 ), a smaller leaf biomass of Chinese fir in the pure forest implied a weaker driving force for transpiration and water absorption, thus promoting the utilization of shallow soil water ( Table 1 ; Figure 3 ).…”

Section: Discussionsupporting

confidence: 93%

“…First, fine roots with great surface area and strong physiological activity are the primary organ for water and nutrient absorption ( McCormack et al, 2015 ; Hu et al, 2021 ). Second, the redistribution of fine roots within the soil profile and the maintenance of their metabolic activities are essential for water uptake and the adaptation of plants to variable environments ( Schenk, 2008 ; Kulmatiski and Beard, 2012 ; Zhang et al, 2020 ). Hence, the Chinese fir in our mixed forests (MCC and MCA, respectively) had greater fine-root biomass in deep soils and accordingly improved the absorption of deep soil water.…”

Section: Discussionmentioning

confidence: 99%

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Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

Zhang

et al. 2022

Front. Plant Sci.

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Plantation cultivation plays an important role in improving terrestrial ecosystem functions and services. Understanding the water-use patterns of major afforestation species is vital for formulating ecological restoration strategies and predicting the response of plantation to climate change. However, the impacts and drivers of forest types on water-use patterns of key tree species are poorly understood. Here, the combined methods of dual stable isotope of δD and δ 18 O and Bayesian mixed framework (MixSIAR) were employed to investigate the water-use patterns of Cunninghamia lanceolata (Chinese fir) in a monoculture, mixed forest with Cinnamomum camphora, and mixed forest with Alnus cremastogyne under different rainfall events in subtropical China. Furthermore, the relative contribution of different soil and plant factors to the water-use patterns of Chinese fir was quantified using a random forest model. Our results showed that Chinese fir in the mixed forests (with C. camphora or with A. cremastogyne) utilized less water from shallow soil compared to that in a monoculture but significantly improved the proportion of water absorbed from deep soil with the increase of 55.57%-64.90% and 68.99%-108.83% following moderate and heavy rainfall events, respectively. The most important factors contributing to the differences in water-use patterns of Chinese fir among monoculture and mixed forests were tree attributes (i.e., leaf biomass, eco-physiological regulation, and fine root biomass). These findings reveal that Chinese fir in mixed forests could optimize water-use patterns by adjusting plant properties for interspecific niche complementarity, improving the utilization of deep soil water. Overall, this study suggests that mixed-species plantations could improve water-use efficiency and reduce the sensitivity of tree species to precipitation change, indicating they are better able to cope with expected climate variability. KEYWORDS stable isotope, plantation types, water-use patterns, Chinese fir, plant and soil properties TYPE

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

Zhang

et al. 2022

Front. Plant Sci.

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“…Our results demonstrated that T. distichum mainly absorbed shallow soil water, while the percentage of water uptake from deep soil layer was relatively lower, whether in light, moderate, or heavy rainfall, supporting our first hypothesis. The water use pattern of T. distichum is opposite to that of Cunninghamia lanceolata and Populus deltoides [26,37]. This discrepancy may be attributed to the following two reasons.…”

Section: Tree Traits Primarily Regulated the Water Uptake Of T Distichummentioning

confidence: 86%

“…Specifically, we set "MCMC (Markon chain Monte Carlo) run long", "error structure" and "specify priority" to "long", "residual only", and "uninformative prior", respectively. Third, we tested the convergence of the model through "Gelman-Rubin" and "Geweke" [26].…”

Section: Determining Water Isotopes and Calculating Water Uptake Pattern Of T Distichummentioning

confidence: 99%

“…To address these issues, we selected three T. distichum plantations in the Yangtze River Delta, China. Then we employed stable hydrogen and oxygen isotopes (δD and δ 18 O) coupled with the Bayesian mixed model (MixSIAR) to explore the water use patterns of T. distichum [25,26]. Furthermore, we examined both tree traits and soil properties in each plantation, and explored which factor dominantly drives the T. distichum water uptake.…”

Section: Introductionmentioning

confidence: 99%

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Disentangling the Effects of Tree and Soil Properties on the Water Uptake of a Waterlogging Tolerant Tree in the Yangtze River Delta, China

Zhang

Jiang

et al. 2021

Forests

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Waterlogging tolerant tree species exert a critical role in forest preservation and the associated water conservation in flood prone areas. Clarifying the patterns and drivers of water uptake by waterlogging tolerant trees is crucial for forest management in flood-prone areas, especially in the scenario of precipitation changes in the estuary delta. Here, we uploaded the values of δD and δ18O obtained from soil and xylem waters to a Bayesian mixed model (MixSIAR) to determine the water use pattern of Taxodium distichum, a waterlogging tolerant tree, following different magnitudes of rainfall events in three sites of the Yangtze River Delta, China. We further conducted variation partitioning analysis and a random forest model to discern the dominant factor driving plant water uptake. Our results indicated that T. distichum mainly absorbed soil water from shallow soil layers (0–40 cm, 43.63%–74.70%), while the percentage of water uptake from deep soil layers was lower in the Yangtze River Delta (60–100 cm, 13.43%–35.90%), whether in light, moderate, or heavy rainfall conditions. Furthermore, our results demonstrated that tree traits, such as fine root biomass, are dominantly driving plant water uptake. These findings imply that waterlogging tolerant tree species could increase the percentage of water uptake from shallow soils by changing their plant attributes, which would effectively improve the water conservation of forests in the estuary delta.

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How do non‐halophyte locust trees thrive in temperate coastal regions: A study of salinity and multiple environmental factors on water uptake patterns

Li,

Lan,

Chen

et al. 2024

Hydrological Processes

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Understanding plant water use patterns is crucial for comprehending the dynamics of the soil–plant‐atmosphere continuum and evaluating the adaptability of plants across diverse ecosystems. However, there remains a gap in our comprehension of non‐halophyte plants' water uptake patterns and driving factors in temperate coastal regions. For this reason, we used locust trees (a widely planted non‐halophyte tree species in northern China) as a study subject. We collected water isotope data (δ2H and δ18O) for locust trees xylem and soil over two consecutive growing seasons. The MixSIAR model was used along with five distinct sets of input data (single isotopes, uncorrected dual isotopes, and corrected dual isotopes incorporating δ2H data obtained by soil water line or cryogenic vacuum distillation methods) to infer water utilization patterns. The results indicated that locust trees primarily absorb shallow soil water (0–20 cm, 29.4% ± 16.9%) and deep soil water (120–180 cm, 24.7% ± 5.8%). Pearson's correlation analysis revealed the key driving factors behind water uptake patterns were vegetation transpiration and soil salinity. Remarkably, the build up of salts in the lower soil layer (60–120 cm) hinders the absorption of water by plants. To prevent high salt concentrations from affecting water uptake in non‐halophyte plants, we recommend implementing sufficient irrigation from March to April each year to meet the water needs of plant growth and regulate the accumulation of salts in various soil layers. This study reveals the dynamic water utilization strategy of non‐halophyte plants in temperate coastal regions, offering valuable information for water resources management.

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Altered water uptake patterns of Populus deltoides in mixed riparian forest stands

Cited by 23 publications

References 39 publications

Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

Contrasting water-use patterns of Chinese fir among different plantation types in a subtropical region of China

Disentangling the Effects of Tree and Soil Properties on the Water Uptake of a Waterlogging Tolerant Tree in the Yangtze River Delta, China

How do non‐halophyte locust trees thrive in temperate coastal regions: A study of salinity and multiple environmental factors on water uptake patterns

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