scholarly journals Differences in fine root traits between early and late-successional tree species in a Chinese subtropical forest

2013 ◽  
Vol 86 (3) ◽  
pp. 343-351 ◽  
Author(s):  
W. Xiang ◽  
W. Wu ◽  
J. Tong ◽  
X. Deng ◽  
D. Tian ◽  
...  
Keyword(s):  
Tree Species ◽  
Fine Root ◽  
Root Traits ◽  
Subtropical Forest

scholarly journals Fine root respiration is more strongly correlated with root traits than tree species identity

Ecosphere ◽  
2019 ◽  
Vol 10 (11) ◽  
Author(s):  
Eva Paradiso ◽  
Fiona Jevon ◽  
Jaclyn Matthes
Keyword(s):  
Tree Species ◽  
Root Respiration ◽  
Fine Root ◽  
Root Traits ◽  
Strongly Correlated ◽  
Species Identity

scholarly journals Trade-Offs in Phosphorus Acquisition Strategies of Five Common Tree Species in a Tropical Forest of Puerto Rico

2021 ◽  
Vol 4 ◽  
Author(s):  
Daniela Yaffar ◽  
Camille E. Defrenne ◽  
Kristine G. Cabugao ◽  
Stephanie N. Kivlin ◽  
Joanne Childs ◽  
...  
Keyword(s):  
Phosphatase Activity ◽  
Tree Species ◽  
Fine Root ◽  
Root Traits ◽  
Root Trait ◽  
Soil P ◽  
P Acquisition ◽  
Trade Offs ◽  
Acquisition Strategies ◽  
Common Tree

Tree species that are successful in tropical lowlands have different acquisition strategies to overcome soil phosphorus (P) limitations. Some of these strategies belowground include adjustments in fine-root traits, such as morphology, architecture, association with arbuscular mycorrhizal fungi, and phosphatase activity. Trade-offs among P-acquisition strategies are expected because of their respective carbon cost. However, empirical evidence remains scarce which hinders our understanding of soil P-acquisition processes in tropical forests. Here, we measured seven fine-root functional traits related to P acquisition of five common tree species in three sites of the Luquillo Experimental Forest in Puerto Rico. We then described species-specific P-acquisition strategies and explored the changes in fine-root trait expression from 6 months before to 6 months after two consecutive hurricanes, Irma and María, passed over the island. We found that variations in root trait expression were driven mainly by the large interspecific differences across the three selected sites. In addition, we revealed a trade-off between highly colonized fine roots with high phosphatase activity and fine roots that have a high degree of branching. Furthermore, the former strategy was adopted by pioneer species (Spathodea campanulata and Cecropia schreberiana), whereas the latter was adopted by non-pioneer species (mostly Dacryodes excelsa and Prestoea montana). Additionally, we found that root trait expression did not change comparing 6 months before and after the hurricanes, with the exception of root phosphatase activity. Altogether, our results suggest a combination of structural and physiological root traits for soil P acquisition in P-poor tropical soils by common tropical tree species, and show stability on most of the root trait expression after hurricane disturbances.

scholarly journals Positive effects of tree species richness on fine-root production in a subtropical forest in SE-China

2017 ◽  
Vol 10 (1) ◽  
pp. 146-157 ◽  
Author(s):  
Zhenkai Sun ◽  
Xiaojuan Liu ◽  
Bernhard Schmid ◽  
Helge Bruelheide ◽  
Wensheng Bu ◽  
...  
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Fine Root ◽  
Subtropical Forest ◽  
Root Production ◽  
Fine Root Production ◽  
Positive Effects ◽  
Tree Species Richness ◽  
Se China

scholarly journals Functional Trait Responses to Strip Clearcutting in a Moso Bamboo Forest

Forests ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 793
Author(s):  
Yaxiong Zheng ◽  
Fengying Guan ◽  
Shaohui Fan ◽  
Yang Zhou ◽  
Xiong Jing
Keyword(s):  
Leaf Area ◽  
Functional Traits ◽  
Root Length ◽  
Fine Root ◽  
Root Traits ◽  
Moso Bamboo ◽  
Leaf Nitrogen Content ◽  
Dry Matter Content ◽  
Functional Characteristics ◽  
Functional Features

Functional characteristics reflect plant strategies and adaptability to the changing environment. Determining the dynamics of these characteristics after harvesting would improve the understanding of forest response strategies. Strip clearcutting (SC) of moso bamboo forests, which significantly reduces the cutting cost, has been proposed to replace manual selective harvesting. A comparison of restoration features shows that 8 m is the optimal cutting width. However, the precise response of functional features to the resulting harvest-created gap remains unclear. In this study, three SC plots were selected which was performed in February 2019, with three unharvested plots as a control (C). The study focused on 10 functional traits, including leaf area (LA), specific leaf area (SLA), leaf dry matter content (LDMC), leaf nitrogen content (LNC), leaf phosphorus content (LPC), nitrogen/phosphorus ratio (N:P), wood density (WD), fine root biomass (FRB), specific fine root length (SRL), and root length density (RLD). A one-way ANOVA was used to compare differences in functional traits and soil nutrients between treatments. Strip clearcutting significantly reduced the soil organic carbon (SOC) and total nitrogen (TN) contents (p < 0.05). In terms of functional characteristics, SC significantly decreased LA and increased LNC, LPC, and N:P (p < 0.05). However, SC had no significant effect on fine root traits (p > 0.05). This study highlighted that root trait, soil content of total phosphorus (TP) and total potassium (TK) returned to the level of uncut plots after a year’s recovery. The LPC, LNC, and N:P were negatively correlated with LA, and LDMC and WD were negatively correlated with SLA, while the effect of SC on fine root traits was limited (p > 0.05). Fine root traits (FRB, RLD, and SRL) were positively associated with SOC, TN, and TP, but negatively correlated with TK. The changes in soil nutrient content caused by the removal of biomass were normal. Increased light and the rapid growth of new trees will increase nutrient regressions; therefore, these results further confirm the feasibility of SC.

Fine root traits in Chamaecyparis obtusa forest soils with different acid buffering capacities

Trees ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 415-429 ◽  
Author(s):  
Kouhei Miyatani ◽  
Yuki Mizusawa ◽  
Kazuki Okada ◽  
Toko Tanikawa ◽  
Naoki Makita ◽  
...  
Keyword(s):  
Forest Soils ◽  
Fine Root ◽  
Root Traits ◽  
Chamaecyparis Obtusa ◽  
Acid Buffering

Fine root architecture, morphology, and biomass of different branch orders of two Chinese temperate tree species

2006 ◽  
Vol 288 (1-2) ◽  
pp. 155-171 ◽  
Author(s):  
Zhengquan Wang ◽  
Dali Guo ◽  
Xiangrong Wang ◽  
Jiacun Gu ◽  
Li Mei
Keyword(s):  
Tree Species ◽  
Root Architecture ◽  
Fine Root

scholarly journals Effects of warming and fertilization interacting with intraspecific competition on fine root traits of Picea asperata

2020 ◽  
Author(s):  
Dan-Dan Li ◽  
Hong-Wei Nan ◽  
Chun-Zhang Zhao ◽  
Chun-Ying Yin ◽  
Qing Liu
Keyword(s):  
Root Growth ◽  
Climate Warming ◽  
Tree Growth ◽  
Root Length ◽  
Root Biomass ◽  
Fine Root ◽  
Root Traits ◽  
Root Surface ◽  
Root Branching ◽  
Picea Asperata

Abstract Aims Competition, temperature, and nutrient are the most important determinants of tree growth in the cold climate on the eastern Tibetan Plateau. Although many studies have reported their individual effects on tree growth, little is known about how the interactions of competition with fertilization and temperature affect root growth. We aim to test whether climate warming and fertilization promote competition and to explore the functional strategies of Picea asperata in response to the interactions of these factors. Methods We conducted a paired experiment including competition and non-competition treatments under elevated temperature (ET) and fertilization. We measured root traits, including the root tip number over the root surface (RTRS), the root branching events over the root surface (RBRS), the specific root length (SRL), the specific root area (SRA), the total fine root length and area (RL and RA), the root tips (RT) and root branching events (RB). These root traits are considered to be indicators of plant resource uptake capacity and root growth. The root biomass and the nutrient concentrations in the roots were also determined. Important Findings The results indicated that ET, fertilization and competition individually enhanced the nitrogen (N) and potassium (K) concentrations in fine roots, but they did not affect fine root biomass or root traits, including RL, RT, RA and RB. However, both temperature and fertilization, as well as their interaction, interacting with competition increased RL, RA, RT, RB, and nutrient uptake. In addition, the SRL, SRA, RTRS and RBRS decreased under fertilization, the interaction between temperature and competition decreased SRL and SRA, while the other parameters were not affected by temperature or competition. These results indicate that Picea asperata maintains a conservative nutrient strategy in response to competition, climate warming, fertilization, and their interactions. Our results improve our understanding of the physiological and ecological adaptability of trees to global change.

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