Soil carbon and associated bacterial community shifts driven by fine root traits along a chronosequence of Moso bamboo (Phyllostachys edulis) plantations in subtropical China

2021 ◽  
Vol 752 ◽  
pp. 142333
Author(s):  
Chuanbao Yang ◽  
Xiaoping Zhang ◽  
Huijing Ni ◽  
Xu Gai ◽  
Zichen Huang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Soil Carbon ◽  
Fine Root ◽  
Root Traits ◽  
Moso Bamboo ◽  
Subtropical China ◽  
Phyllostachys Edulis ◽  
Community Shifts

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.

Changes in soil carbon pools and components induced by replacing secondary evergreen broadleaf forest with Moso bamboo plantations in subtropical China

CATENA ◽  
2019 ◽  
Vol 180 ◽  
pp. 309-319 ◽  
Author(s):  
Chuanbao Yang ◽  
Huijing Ni ◽  
Zheke Zhong ◽  
Xiaoping Zhang ◽  
Fangyuan Bian
Keyword(s):  
Soil Carbon ◽  
Moso Bamboo ◽  
Carbon Pools ◽  
Subtropical China ◽  
Broadleaf Forest ◽  
Soil Carbon Pools

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

scholarly journals Soil Bacterial Community Shifts after Chitin Enrichment: An Integrative Metagenomic Approach

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e79699 ◽  
Author(s):  
Samuel Jacquiod ◽  
Laure Franqueville ◽  
Sébastien Cécillon ◽  
Timothy M. Vogel ◽  
Pascal Simonet
Keyword(s):  
Bacterial Community ◽  
Soil Bacterial Community ◽  
Community Shifts ◽  
Soil Bacterial ◽  
Metagenomic Approach

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.

scholarly journals Transcriptome analysis of lateral buds from Phyllostachys edulis rhizome during germination and early shoot stages

2020 ◽  
Author(s):  
Yuting Shou ◽  
Yihua Zhu ◽  
Yulong Ding
Keyword(s):  
Signaling Pathways ◽  
High Throughput Sequencing ◽  
Stem Elongation ◽  
Rapid Development ◽  
Development Stage ◽  
Fast Growth ◽  
Moso Bamboo ◽  
Phyllostachys Edulis ◽  
Lateral Buds ◽  
Meristem Development

Abstract Background: The vegetative growth is an important stage for plants when they conduct photosynthesis, accumulate and collect all resources needed and prepare for reproduction stage. Bamboo is one of the fastest growing plant species. The rapid growth of Phyllostachys edulis results from the expansion of intercalary meristem at the basal part of nodes, which are differentiated from the apical meristem of rhizome lateral buds. However, little is known about the major signaling pathways and players involved during this rapid development stage of bamboo. To study this question, we adopted the high-throughput sequencing technology and compared the transcriptomes of Moso bamboo rhizome buds in germination stage and late development stage. Results: We found that the development of Moso bamboo rhizome lateral buds was coordinated by multiple pathways, including meristem development, sugar metabolism and phytohormone signaling. Phytohormones have fundamental impacts on the plant development. We found the evidence of several major hormones participating in the development of Moso bamboo rhizome lateral bud. Furthermore, we showed direct evidence that Gibberellic Acids (GA) signaling participated in the Moso bamboo stem elongation. Conclusion: Significant changes occur in various signaling pathways during the development of rhizome lateral buds. It is crucial to understand how these changes are translated to Phyllostachys edulis fast growth. These results expand our knowledge on the Moso bamboo internodes fast growth and provide research basis for further study.

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