Scaling the leaf nutrient resorption efficiency: Nitrogen vs phosphorus in global plants

He, Maosong; Yan, Zhengbing; Cui, Xiaoqing; Gong, Yanming; Li, Kaihui; Han, Wenxuan

doi:10.1016/j.scitotenv.2020.138920

Cited by 39 publications

(28 citation statements)

References 57 publications

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“…In terrestrial perennial plant species, foliar N, P and K resorption efficiencies are generally highly variable, but the REN is mainly within the range of 40-55%, the REP 50-80% and the REK within 50-80% (Marschner 1995;Aerts 1996;Güsewell 2005;Vergutz et al 2012;He et al 2020). Usually, REN closely correlates with REP.…”

Section: Resultsmentioning

confidence: 99%

“…Nutrient resorption from senescing leaves and shoots decreases the nutrient losses associated with biomass turnover and represents a significant component of mineral nutrient economy (Güsewell 2004(Güsewell , 2005Adamec 2014Adamec , 2018He et al 2020). Plants in nutrient-poor habitats may minimise their relative nutrient losses in senescent leaves/shoots ('resorption efficiency') or the final nutrient content lost in senescent biomass ('resorption proficiency'; Killingbeck 1996) or maintain a longer organ life span.…”

Section: Introductionmentioning

confidence: 99%

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Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Adamec

2022

Bot Serb

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Nutrient resorption from senescing leaves and shoots decreases the nutrient losses associated with biomass turnover and represents a significant component of mineral nutrient economy. In submerged aquatic plants, N and P resorption efficiencies (REN, REP) from senescing leaves or shoots are high (usually >40% in dry weight, DW), but K resorption efficiency (REK) is usually very low or zero. The free-floating aquatic fern Salvinia natans has a linear, modular shoot structure exhibiting steep growth and a physiological polarity, and consists of oval, floating, natant leaves with photosynthetic functions and thread-like submerged leaves which absorb nutrients. To obtain the basic mineral nutrient characteristics, REN, REP and REK were estimated in the senescent floating and submerged leaves of this species grown in an outdoor culture. The N content in all the leaves was in the range between 1.10-1.42% DW, P 0.33-0.57% DW and K between 4.03-6.20% DW, indicating a partial N growth limitation but a liberal P uptake. Contrary to expectations, the REN values in both types of leaves were relatively low (7-31%), those of REP even negative (-7 to -12%), while the REK values were relatively high (31-44%). These results are in contrast to much higher N and P resorption efficiencies reported in both submerged plants and the similar tropical species S. molesta. The REK values found in S. natans are in accordance with those reported in S. molesta, but are much higher than those in submerged plants. Thus, the submerged leaves (rhizophylls) of the Salvinia species do not behave in the same way as the leaves of higher submerged plants in terms of the K economy.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Adamec

2022

Bot Serb

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“…Therefore, the strategy of cation element resorption in plants could be more important in subtropical regions with rich rainfall than that in other regions. However, most of the research on resorption in subtropical regions conducted to date has focused on nitrogen (N) and phosphorus (P) [16,24,25], while the resorption patterns of cation nutrients such as K, Ca, Na and Mg have not been well studied.…”

Section: Introductionmentioning

confidence: 99%

Resorption Efficiency of Four Cations in Different Tree Species in a Subtropical Common Garden

Zhang¹,

Ni²,

Yang³

et al. 2022

Phyton

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High rainfall in subtropical regions can leach cation elements from ecosystems, which may limit plant growth. Plants often develop efficient resorption patterns to recycle elements, but there is relatively little available information on this topic. In February 2012, a common garden was established in a subtropical forest by planting dominant trees from the area. Green and senescent leaves were sampled from 11 tree species. The concentrations of potassium (K), calcium (Ca), sodium (Na) and magnesium (Mg) were determined, and the resorption efficiencies were calculated. The results showed significant K, Na and Mg resorption in most of the investigated tree species, while Ca mainly displayed accumulation. Evergreen coniferous and evergreen broad-leaved trees (such as Cunninghamia lanceolata, Pinus massoniana, Cinnamomum camphora, and Michelia macclurei) exhibited relatively higher resorption efficiencies of K (39.0%-87.5%) and Na (18.3%-50.2%) than deciduous broad-leaved trees. Higher Mg resorption efficiencies (>50%) were detected in Liriodendron chinense, C. lanceolata and P. massoniana than in other trees. Overall, evergreen coniferous and evergreen broad-leaved trees could show higher cation resorption than deciduous broad-leaved trees. K and Mg resorption efficiencies and Ca accumulation decrease with increasing nutrient concentrations in green leaves. Our results emphasize that nutrient resorption patterns largely depend on elements and plant functions, which provides new insights into the nutrient use strategies of subtropical plants and a reference for the selection of suitable tree species in this region.

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“…It has been always considered that roots are the major tissue for the plant to acquire nutrients, and root nutrient acquisition strategies play a decisive role in the maintenance of forest ecosystem health and vitality ( Andersen et al, 2017 ; Ma et al, 2018 ; Li et al, 2019 ). In recent decades, some other plant nutrient acquisition strategies have also been proposed, such as leaf nutrient resorption proficiency and efficiency ( Reed et al, 2012 ; He et al, 2020 ; Xu et al, 2020 ). Naturally, whether these plant nutrient acquisition strategies co-vary or exhibit coordinated responses to a changing environment has drawn great attention from ecologists.…”

Section: Introductionmentioning

confidence: 99%

Effects of Long-Term Fertilization and Stand Age on Root Nutrient Acquisition and Leaf Nutrient Resorption of Metasequoia glyptostroboides

et al. 2022

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The plant nutrient acquisition strategies are diverse, such as root nutrient acquisition and leaf nutrient resorption, playing important roles in driving soil processes, vegetation performance as well as ecosystem nutrient cycling. However, it is still in a debate whether there is a synergy or tradeoff between above- and below-ground nutrient acquisition strategy under nitrogen (N) and phosphorus (P) addition, or with stand age. Herein, this study investigated the responses of root-soil accumulation factor (RSAF) and leaf nutrient resorption efficiency (NuRE) to long-term N and P fertilization, and further explored the trade-off between them in Metasequoia glyptostroboides plantations with different stand age. Results showed that under N fertilization in young plantations, leaf N resorption efficiency (NRE) increased, and root-soil accumulation factor for P (RSAF-P) decreased. For young forests under P fertilization, the NRE increased whereas RSAF-P decreased. For middle-aged forests under P fertilization, the NRE and leaf P resorption efficiency (PRE) increased and the RSAF-P decreased. Under P fertilization in young and middle-aged plantations, PRE had a significant positive correlation with RSAF-P. Under N fertilization in young plantations, NRE was significantly positive correlated with root-soil accumulation factor for N (RSAF-N). The covariance-based structural equation modeling (CB-SEM) analysis indicated that stand age had positive effects on PRE whether under N or P fertilization, as well as on RSAF-P under N fertilization, whereas had no effects on the NRE or RSAF-N. Overall, our results can shed light on the nutrient acquisition strategies of M. glyptostroboides plantations under future environmental changes and the results could be applied to the nutrient management practices.

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Scaling the leaf nutrient resorption efficiency: Nitrogen vs phosphorus in global plants

Cited by 39 publications

References 57 publications

Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Resorption Efficiency of Four Cations in Different Tree Species in a Subtropical Common Garden

Effects of Long-Term Fertilization and Stand Age on Root Nutrient Acquisition and Leaf Nutrient Resorption of Metasequoia glyptostroboides

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