Water use by trees is linked to precipitation: A case study of a mixed forest in a hilly area in southern China

Liu, Ziqiang; Ye, Limin; Wei, Zijun; Jiang, Jiang; Zhang, Qiufeng; Lv, Xizhi

doi:10.1016/j.ecolind.2022.109343

Cited by 7 publications

(6 citation statements)

References 31 publications

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“…As the primary source of water replenishment in water-limited regions, rainfall plays an important role in sustaining vegetation physiological processes ( Weltzin and Tissue, 2003 ). An increased SF could trigger a cascade of responses that affect plant growth and survival ( Wang et al., 2020 ; Iqbal et al., 2021 ; Liu et al., 2022 ), particularly in water-limited areas. The differences in the species’ biological characteristics and water use strategies affect their sensitive responses to environmental factors ( Xu and Li, 2006 ; Wu et al., 2018 ).…”

Section: Discussionmentioning

confidence: 99%

“…Sap flow density (SF) is an indicator of plant transpiration that can reflect the individual plant’s physiological characteristics and water use response to environmental factors ( Wu et al., 2018 ; Liu et al., 2022 ). In addition to meteorological factors and vegetation conditions, the variation of SF has been shown to be related to soil water availability, which is strongly regulated by precipitation, particularly in water limited regions ( Wang et al., 2017a ; Mu et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…Rainfall events change the vapor pressure deficit (VPD, kPa), solar radiation (Rs, KW/m 2 ), and the air’s relatively humidity (RH, %) as well as soil moisture. It is well accepted that SF variability is related to environmental factors, while SF’s key determining factors under different rainfall events in water-limited environments are still unclear ( Wu et al., 2018 ; Liu et al., 2022 ). Although plant–water relations have been an important element of eco-physiological research, particularly in water-limited regions, previous studies have not quantified these factors’ effect under different rainfall amounts conditions.…”

Section: Introductionmentioning

confidence: 99%

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Responses of sap flow density of two shrub species to rainfall classes on the semiarid Loess Plateau of China

Fang,

Lu,

Liu

et al. 2023

Front. Plant Sci.

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IntroductionRainfall events can determine a cascade of plant physiological and ecological processes, and there is considerable interest in the way that rainfall modifies plant water flux dynamics.MethodsThe sap flow density (SF) of the planted species of Vitex negundo and Hippophae rhamnoides, on the Loess Plateau of China was monitored using the heat balance method from 2015 to 2017.Results and discussionThe results showed that SF responded differently to rainfall classes because of the changing meteorological and soil water content (SWC) conditions. For class 1: 0.2–2 mm, SF increased by 14.36–42.93% for the two species, which were mainly attributable to the effect of solar radiation and vapor pressure deficit after rainfall. For class 2: 2–10 mm, SF remained nearly stable for V. negundo and decreased for H. rhamnoides because of the relative humidity’s effect. For class 3: > 10 mm, SF increased significantly because of increased SWC and the increasing response to solar radiation. The increased percentage of SF was relatively higher for V. negundo when rainfall was less than 20 mm, while the value was higher for H. rhamnoides when rainfall was greater than 10 mm. Further, V. negundo’s water potential increased at the soil–root interface (ψ0) and ψL, indicating that the plant, which has shallower roots and a coarser of leaf and bark texture, considered as anisohydric species and used precipitation-derived upper soil water to survive. The relatively consistent ψL and ψ0 for H. rhamnoides, which has deep roots and leathery leaves, indicated that this species was considered as isohydric species and insensitive to the slight change in the soil water status. The differed response patter and water use strategies between the two species showed that species as V. negundo are more susceptible to frequent, but small rainfall events, while larger, but less frequent rainfall events benefit such species as H. rhamnoides. This study quantified the effect of environmental factors for SF variation. The results could help formulate a selection process to determine which species are more suitable for sustainable management in the afforestation activities under the context of more frequent and intense rainfall events.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Responses of sap flow density of two shrub species to rainfall classes on the semiarid Loess Plateau of China

Fang,

Lu,

Liu

et al. 2023

Front. Plant Sci.

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“…The Mu Us Desert is located in the semi-arid region of northern China, with severe water shortages, and highly seasonal temperature and precipitation. Low nutrient availability, high temperatures, and water scarcity constrain plant growth and productivity in arid and semi-arid ecosystems ( 21 – 23 ). Many desert plant species are dependent on symbiotic relationships with EM fungi for efficient nutrient and water acquisition ( 24 , 25 ).…”

Section: Introductionmentioning

confidence: 99%

Temporal approach to identifying ectomycorrhizal community associated with Mongolian pine in a desert environment, northern China

Ren,

Gao,

Ding

et al. 2023

Microbiol Spectr

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To date, the ectomycorrhizal (EM) fungi community has been widely investigated with aging plantations affected by the pedologic factors. However, knowledge on the effects of phenology induced by climatic factors across the age range remains poorly understood on an intra-annual scale. Here, we sampled the fine roots of Mongolian pine ( Pinus sylvestris var. mongolica ) plantations at different stages of the growing season (from April to September) across three stand ages (27, 34, and 44 yr) in the Mu Us Desert, Northwest China. We aim to disentangle the community composition and structure of EM fungi, as well as the impact of climate on EM fungi. We observed that the 173 distinct EM fungal operational taxonomic units (OTUs) were identified. Geopora , Inocybe , Tomentella, and Tuber were the most frequent, and their dominance was maintained as stand aging. The richness and community composition were not significantly different with stand aging ( P > 0.05). Host phenology and stand age are two important factors that have shaped the EM fungal community. The growing stage affected the beta diversity of the EM fungal community more than stand age, and this variation of the EM fungal community was closely related to seasonal climate, particularly precipitation. This improved information will provide a theoretical basis for the reforestation and rehabilitation of the Mongolian pine plantations using mycorrhizal techniques. IMPORTANCE Ectomycorrhizal (EM) fungi are particularly important for host plants in a desert ecosystem. With a high degree of plasticity, EM fungi are largely influenced by host plant and environmental variables and fundamentally contribute to the ability of individuals to adapt to environmental changes. Therefore, the EM fungi are important for Mongolian pine ( Pinus sylvestris var. mongolica ) plantation in a desert ecosystem. Although previous studies have concluded that multiple endogenous and exogenous processes ultimately lead to species-specific temporal patterns in EM fungal populations. We still neglect the effect of host phenology on EM fungal activity. The significance of our study is the interplay between climate-driven EM fungi and plant phenology.

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“…As the source of essential ecosystem services (ESs) such as timber supply, soil conservation, carbon sequestration, and climate regulation (Gamfeldt et al, 2013;Brockerhoff et al, 2017;Ding et al, 2022), forest ecosystems are susceptible and vulnerable to global climate change (Seidl et al, 2017;Wan et al, 2018;Anderegg et al, 2022). Changes in precipitation are an important indicator of global climate change, which can directly or indirectly affect the growth and distribution of forests, altering their structure and function, and thus affecting ESs and their interrelationships (Weltzin et al, 2003;Xu et al, 2020;Chen J. et al, 2021;Liu et al, 2022). From the perspective of the impact path on ESs on forest ecosystem, the intensity and duration of precipitation can affect the flow production mechanism and water yield, along with soil properties (Balasubramanian, 2017;Li M. et al, 2021;Wu et al, 2022); Spatial and temporal variations of precipitation can affect vegetation growth, change vegetation productivity and biomass , and then affect the carbon sequestration of forest.…”

Section: Introductionmentioning

confidence: 99%

Response of temperate forest ecosystem services to rainfall: A case study in the forest nature reserves of northern China

Liang

Han

et al. 2023

Front. Ecol. Evol.

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In the context of global climate change, temperate forests in climate-sensitive areas are inevitably affected. To deepen the understanding of the impact on precipitation changes into the relationship between key ecosystem services (ESs), this study selected net primary productivity (NPP), soil conservation (SC) and water yield (WY) of temperate forest in northern China as objects, and the Spearman correlation test and redundancy analysis were applied to analyze the response of ESs relationship to precipitation gradient. The results show that precipitation is the meteorological factor with the greatest impact (contribution 21.2%, p<0.01) on ESs and their relationships in temperate forests. The 600-700 mm precipitation gradient is the key turning point in the change of ESs relationship of WY with NPP and SC. This indicates that attention should be paid to the spatial variation of the 600-700 mm precipitation region in the future warm-wet in northern China, which should be used as a dividing line of forest management and policy development. Based on the results, future restoration projects in northern temperate forest should focus on (1) in areas with less than 600-700 mm of precipitation, attention should be paid to the selection of tree species for afforestation to maintain regional water balance; (2) in areas with more than 700 mm of precipitation, soil and water conservation projects need to be planned, especially in mountainous area. The research can not only support the management of temperate forest ecosystems in northern China, but also provide reference to other forest ecosystems to cope with climate change.

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Water use by trees is linked to precipitation: A case study of a mixed forest in a hilly area in southern China

Cited by 7 publications

References 31 publications

Responses of sap flow density of two shrub species to rainfall classes on the semiarid Loess Plateau of China

Responses of sap flow density of two shrub species to rainfall classes on the semiarid Loess Plateau of China

Temporal approach to identifying ectomycorrhizal community associated with Mongolian pine in a desert environment, northern China

Response of temperate forest ecosystem services to rainfall: A case study in the forest nature reserves of northern China

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