Effects of nitrogen and phosphorus supply on growth and physiological traits of two Larix species

Li, Junyu; Guo, Qingxue; Zhang, Jinxin; Korpelainen, Helena; Li, Chunyang

doi:10.1016/j.envexpbot.2016.06.006

Cited by 35 publications

(35 citation statements)

References 83 publications

(98 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Elevated LNC and a relatively stable C level resulted in a decrease in the C:N ratio under N addition. N addition increased the photosynthetic performance of the M. pauhoi seedlings by increasing A and the photosynthetic N use efficiency (PNUE), as previously reported [20,23,78]. Elevated A can be explained in two ways.…”

Section: Response To N Additionsupporting

confidence: 69%

Short-Term Nitrogen Addition Does Not Significantly Alter the Effects of Seasonal Drought on Leaf Functional Traits in Machilus pauhoi Kanehira Seedlings

Cheng

et al. 2019

Forests

View full text Add to dashboard Cite

Research Highlights: Short-term nitrogen (N) addition did not significantly alter the effects of seasonal drought on the leaf functional traits in Machilus pauhoi Kanehira seedlings in N-rich subtropical China. Background and Objectives: Seasonal drought and N deposition are major drivers of global environmental change that affect plant growth and ecosystem function in subtropical China. However, no consensus has been reached on the interactive effects of these two drivers. Materials and Methods: We conducted a full-factorial experiment to analyze the single and combined effects of seasonal drought and short-term N addition on chemical, morphological and physiological traits of M. pauhoi seedlings. Results: Seasonal drought (40% of soil field capacity) had significant negative effects on the leaf N concentrations (LNC), phosphorus (P) concentrations (LPC), leaf thickness (LT), net photosynthetic rate (A), transpiration rate (E), stomatal conductance (Gs), and predawn leaf water potential (ψPD), and significant positive effects on the carbon:N (C:N) ratio and specific leaf area (SLA). Short-term N addition (50 kg N·hm−2·year−1 and 100 kg N·hm−2·year−1) tended to decrease the C:N ratio and enhance leaf nutrient, growth, and photosynthetic performance because of increased LNC, LPC, LT, leaf area (LA), SLA, A, E, and ψPD; however, it only had significant effects on LT and Gs. No significant interactive effects on leaf traits were detected. Seasonal drought, short-term N addition, and their interactions had significant effects on soil properties. The soil total C (STC), nitrate N (NO3−-N) and soil total N (STN) concentrations were the main factors that affected the leaf traits. Conclusions: Seasonal drought had a stronger effect on M. pauhoi seedling leaf traits than short-term N deposition, indicating that the interaction between seasonal drought and short-term N deposition may have an additive effecton M. pauhoi seedling growth in N-rich subtropical China.

show abstract

Section: Response To N Additionsupporting

confidence: 69%

Short-Term Nitrogen Addition Does Not Significantly Alter the Effects of Seasonal Drought on Leaf Functional Traits in Machilus pauhoi Kanehira Seedlings

Cheng

et al. 2019

Forests

View full text Add to dashboard Cite

show abstract

“…Therefore, P may have not been the critical limiting factor for aboveground growth; rather, N was the limiting factor. Li et al (2016) compared the effect of N and P loading on two larch species (Larix kaempferi and L. olgensis). They found that N and P loading increased the productivity of both species; however, P loading suppressed L. kaempferi productivity but increased L. olgensis.…”

Section: Abovegroundmentioning

confidence: 99%

Effects of nitrogen loading under low and high phosphorus conditions on above- and below-ground growth of hybrid larch F1 seedlings

Fujita¹,

Wang²,

Kita³

et al. 2018

iForest

View full text Add to dashboard Cite

(4)Under present environmental conditions, hybrid larch F1 (Larix gmelinii var. japonica × Larix kaempferi) is a promising afforestation species as it has a high growth rate and tolerance against grazing damage, disease and cold. However, the input of nitrogen (N) to forests due to the increase of anthropogenic N is causing imbalances of N compared to other nutrients, especially phosphorus (P), thus affecting the root growth of healthy seedlings. However, knowledge on how different N and P conditions affect F1 root growth is still limited. In this study, various N (3 levels) and P (no addition and addition) conditions were imposed to investigate the effect of N loading on larch F1 seedlings under different P conditions. Needle N: P ratio, aboveground growth, belowground growth as well as fine root production were measured. The results showed that needle N: P ratio was higher under low P loading, and aboveground growth of seedlings increased with N loading at both low and high P conditions. Relative fine root production was decreased by N loading. On the other hand, fine root to total dry proportion was increased by N loading at no P addition, suggesting that limited P availability could increase fine root production. Total root proportion to total dry mass was decreased by N loading at both P conditions. We concluded that N loading has different effects on above-and below-ground growth of larch F1 and its effects may also differ according to P conditions, indicating that both N and P conditions should be carefully considered when planting hybrid larch F1.

show abstract

“…Photosynthesis is related to the nutrients in leaves and leaf structure and to the photosynthetic nutrient use efficiency [41,48,49]. The PNUE and PPUE of halophytic plant communities in the two sites showed the same trend as P n , that is, P. australis > S. salsa > T. chinensis (Fig 5A and 5B).…”

Section: Gas Exchange Capacity and Photosynthetic Nutrient Use Efficimentioning

confidence: 86%

“…The PNUE and PPUE of halophytic plant communities in the two sites showed the same trend as P n , that is, P. australis > S. salsa > T. chinensis (Fig 5A and 5B). In many studies, PPUE and PNUE proved to be the important indicators of plant response to soil nutrient status [48,49]. For example, plants tend to enhance their nutrient use efficiency when soil nutrients are scarce.…”

Section: Gas Exchange Capacity and Photosynthetic Nutrient Use Efficimentioning

confidence: 99%

Gas exchange characteristics and their influencing factors for halophytic plant communities on west coast of Bohai Sea

Liu

Zhang

et al. 2020

PLoS ONE

View full text Add to dashboard Cite

Water-salt stress and nutrient limitation may affect leaf economic spectrum of halophytes and confuse our understanding on plant physiological principles in a changing world. In this study, three halophytic plant communities of Phragmites australis, Suaeda salsa, and Tamarix chinensis, were selected in two sites (sites 1 and 2) on the west coast of Bohai Sea. The net photosynthetic rate (P n ), transpiration rate (T r ), stomatal conductance (G s ), leaf vapor pressure deficit (VPD leaf ) and their influencing factors were studied to test the possible carbon assimilation strategies of the halophytes. P. australis had higher P n , T r , and G s than S. salsa and T. chinensis in both sites. Similar trends were found for leaf P and photosynthetic N and P efficiency (PNUE and PPUE, respectively) in one or both sites. By contrast, the leaf dry mass per area (LMA) increased in the order of P. australis < S. salsa < T. chinensis in both sites. For identical species in different sites, P n , leaf P, and PNUE were lower but T r , VPD leaf , leaf N, leaf N:P, and PPUE were higher in site 1 than in site 2 for one or more halophytes. Although soil physicochemical properties in different sites explained several variations among the halophytes, two-way ANOVA indicated that the species can explain most of the leaf traits compared with the site. LMA also had significant nonlinear relationships with P n , T r , G s , and VPD leaf . PNUE and PPUE showed positive correlation with P n in both sites, but they decreased in the power-law function with increasing LMA. Overall, the redundancy analysis showed that the gas exchange capacity of the halophytic plant communities was significantly affected by PPUE (60.0% of explanation), PNUE (57.1%), LMA (35.0%), leaf P (22.0%), and soil N (15.8%).

show abstract

Effects of nitrogen and phosphorus supply on growth and physiological traits of two Larix species

Cited by 35 publications

References 83 publications

Short-Term Nitrogen Addition Does Not Significantly Alter the Effects of Seasonal Drought on Leaf Functional Traits in Machilus pauhoi Kanehira Seedlings

Short-Term Nitrogen Addition Does Not Significantly Alter the Effects of Seasonal Drought on Leaf Functional Traits in Machilus pauhoi Kanehira Seedlings

Effects of nitrogen loading under low and high phosphorus conditions on above- and below-ground growth of hybrid larch F1 seedlings

Gas exchange characteristics and their influencing factors for halophytic plant communities on west coast of Bohai Sea

Contact Info

Product

Resources

About