Shifts in plant phenology induced by environmental changes are small relative to annual phenological variation

Yang, Xue; Guo, Rui; Knops, Johannes M. H.; Mei, Linlin; Kang, Furong; Zhang, Tao; Guo, Jixun

doi:10.1016/j.agrformet.2020.108144

Cited by 13 publications

(4 citation statements)

References 78 publications

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“…For A. podophylla reproductive traits, the all-spore emergence date and maturation date (ASE and ASR) were advanced by UAN50, which might indicate increasing reproductive efficiency due to N addition [ 3 , 42 , 48 ]. This was consistent with some previous studies on grasslands, which showed that the increased resource availability by N addition can make plants allocate more resources (e.g., nutrients) to their reproductive organs, thus accelerating the development of reproductive organs and advancing the reproductive events [ 3 , 41 , 53 , 54 ]. Advancing reproductive events may help A. podophylla avoid competition for resources (e.g., soil nutrients) with other species by further staggering their reproductive period [ 54 , 55 , 56 ].…”

Section: Discussionsupporting

confidence: 92%

“…Those differences would reflect the difference in the ability of the two REFs to absorb or compete for natural resources (e.g., water and nutrients), hence resulting in their contrary responses to N addition [ 57 , 58 , 59 ]. Some studies on grassland also found that plant species with distinct resource acquisition ability (e.g., grass vs. rare forbs) showed contrary responses to N-addition treatment [ 41 , 53 , 54 ].…”

Section: Discussionmentioning

confidence: 99%

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Effects of Simulated Nitrogen Deposition and Micro-Environment on the Functional Traits of Two Rare and Endangered Fern Species in a Subtropical Forest

Wei

Zhang

et al. 2022

Plants

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Although the effects of N deposition on forest plants have been widely reported, few studies have focused on rare and endangered fern species (REFs). Information is also lacking on the effects of micro-environments on REFs. We investigated the effects of N addition (canopy and understory N addition, CAN, and UAN) and micro-environments (soil and canopy conditions) on the functional traits (growth, defense, and reproduction; 19 traits in total) of two REFs—Alsophila podophylla and Cibotium baromet—in a subtropical forest in South China. We found that, compared to controls, CAN or UAN decreased the growth traits (e.g., plant height, H) of C. baromet, increased its defense traits (e.g., leaf organic acid concentrations, OA), delayed its reproductive event (all-spore release date), and prolonged its reproductive duration. In contrast, A. podophylla showed increased growth traits (e.g., H), decreased defense traits (e.g., OA), and advanced reproductive events (e.g., the all-spore emergence date) under CAN or UAN. Meanwhile, the negative effects on the C. baromet growth traits and A. podophylla defense traits were stronger for CAN than for UAN. In addition, the soil chemical properties always explained more of the variations in the growth and reproductive traits of the two REFs than the N addition. Our study indicates that, under simulated N deposition, C. baromet increases its investment in defense, whereas A. podophylla increases its investment in growth and reproduction; this may cause an increasing A. podophylla population and decreasing C. baromet population in subtropical forests. Our study also highlights the importance of considering micro-environments and the N-addition approach when predicting N deposition impact on subtropical forest REFs.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Effects of Simulated Nitrogen Deposition and Micro-Environment on the Functional Traits of Two Rare and Endangered Fern Species in a Subtropical Forest

Wei

Zhang

et al. 2022

Plants

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“…Plant phenology was also impacted by soil chemistry and microbe source with plants growing in serpentine soils having a delayed vegetative and flowering phenology. Changes in flowering phenology can have an impact on life-history traits and population dynamics (Dorji et al 2013;Yang et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Plant phenology influences rhizosphere microbial community and is accelerated by serpentine microorganisms in Plantago erecta

Igwe

Quasem

Liu

et al. 2021

FEMS Microbiology Ecology

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Serpentine soils are drought-prone and rich in heavy metals, and plants growing on serpentine soils host distinct microbial communities that may affect plant survival and phenotype. However, whether the rhizosphere communities of plants from different soil chemistries are initially distinct or diverge over time may help us understand drivers of microbial community structure and function in stressful soils. Here, we test the hypothesis that rhizosphere microbial communities will converge over time (plant development), independent of soil chemistry and microbial source. We grew Plantago erecta in serpentine or nonserpentine soil, with serpentine or nonserpentine microbes and tracked plant growth and root phenotypes. We used 16S rRNA gene barcoding to compare bacterial species composition at seedling, vegetative, early-, and late-flowering phases. Plant phenotype and rhizosphere bacterial communities were mainly structured by soil type, with minor contributions by plant development, microbe source and their interactions. Serpentine microorganisms promoted early flowering in plants on non-serpentine soils. Despite strong effects of soil chemistry, the convergence in bacterial community composition across development demonstrates the importance of the plant-microbe interactions in shaping microbial assembly processes across soil types.

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“…对于估算陆地与大气之间的碳水交换具有重要意义。近年来, 遥感技术成为估算大尺度植被物候的有效手段(代武君等, 2020)。日光诱导叶绿素荧光(SIF)是有效光合辐射中小部分辐射的再发射, 延伸到近红外波段, 具有红光(690 nm左右)和近红外(740 nm左右)两个波峰 (Jeong et al, 2017)。在理论上, SIF通过复杂的能量耗散机制与光合作用相关联 (Guanter et al, 2014;Zhang et al, 2016), 而且SIF产品对云和大气散射不敏感 (Piao et al, 2019)。因此, SIF数据为探测大尺度植被物候提供了一种可靠的方法 (Bertani et al, 2017;Li et al, 2018;刘啸添等, 2018)。然而, SIF数据与光合作用之间的联系会随着植被类型的不同而发生变化。Li等(2018)通过对8种植被的比较发现, 相对于常绿针叶林和灌木林, SIF更适用于估算温带混交林和落叶阔叶林的物候。 SIF在估算不同森林物候时所表现出的差异性能力可能与植被的冠层结构 (Guan et al, 2016)、生理特性 (Sun et al, 2017)、环境变化 (Lee et al, 2015)以及景观异质性密切相关。因此, 需要从全球尺度比较SIF 对不同森林类型物候的追踪能力。植物物候发生的时间与环境因素息息相关 (Yang et al, 2020a)。气温是影响植被生长周期的重要环境因素。一般来说, 气温升高会促进叶片提前发育和推迟衰老, 然而气温降低则会推迟叶片发育和加快叶片衰老 (Piao et al, 2007)。植被物候也会受到降水的影响, 特别是在干旱和半干旱地区。充足的水分会促进叶片发育的提前 (Jin et al, 2019), 而延缓植被叶片的衰老 (Liu et al, 2016a;Yuan et al, 2020)…”

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Vegetation phenology in the Northern Hemisphere based on the solar-induced chlorophyll fluorescence

Zhou¹,

CHI²,

Zhou³

2021

Chinese Journal of Plant Ecology

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Aims Vegetation phenology is an important indicator to reflect the stages of vegetation growth, which is of great significance to the feedback to climate. Solar-induced chlorophyll fluorescence (SIF) is a by-product of photosynthesis, which provides the possibility to directly detect vegetation phenology at the global scale. In order to reveal the accuracy of phenology estimated by SIF of different forest types, we estimated phenology of three forest types in the Northern Hemisphere. Methods Based on 35 eddy flux tower sites in the Northern Hemisphere during the period of 2007-2014, we estimated phenology of three typical forest types using SIF value and gross primary production (GPP) by double logistic growth model and dynamic threshold. Correlation analysis was used to evaluate the different potential of SIF in estimating phenology of different forest types. Important findings Results showed that: (1) SIF was more suitable to estimate the timing of the start of growing season (SOS) than the timing of the end of growing seasons (EOS). ( 2) SOS based on SIF had the highest correlation with SOS based on GPP in mixed forests (MF). However, the SOS of deciduous broadleaf forest (DBF) and Evergreen Needleleaf forest (ENF) could not be accurately tracked by SIF value. (3) The preseason shortwave radiation (SR) was the primarily environmental factor of SOS.

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Shifts in plant phenology induced by environmental changes are small relative to annual phenological variation

Cited by 13 publications

References 78 publications

Effects of Simulated Nitrogen Deposition and Micro-Environment on the Functional Traits of Two Rare and Endangered Fern Species in a Subtropical Forest

Effects of Simulated Nitrogen Deposition and Micro-Environment on the Functional Traits of Two Rare and Endangered Fern Species in a Subtropical Forest

Plant phenology influences rhizosphere microbial community and is accelerated by serpentine microorganisms in Plantago erecta

Vegetation phenology in the Northern Hemisphere based on the solar-induced chlorophyll fluorescence

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