Biomass Estimation, Nutrient Content, and Decomposition Rate of Shoot Sheath in Moso Bamboo Forest of Yixing Forest Farm, China

The biomass, nutrient content and decomposition rate of shoot sheaths remain unexplored in the study of Moso bamboo forests. The rapid growth of shoots means many bamboo sheaths are produced each year, and therefore should not be neglected in the study of the Moso bamboo ecosystem. In our study, we selected 160 bamboo shoots of different sizes in Yixing forest farm, Jiangsu Province. Our analysis was based on the allometric growth equation, using diameter at breast height (DBH), internode length of bamboo at breast height (IL), and bamboo height (H) as independent variables to establish the biomass model of shoot sheaths using all samples. In addition, we also measured the nutrient content of shoots and estimated the decomposition rate of shoots by setting up litter decomposition bags. Our results found that logarithmic regression should be used to fit the biomass model of shoot sheaths. From the perspective of practical application, model W3 fitting DBH and IL was determined. The order of the nutrient elements in the shoot sheath is C > N > K > P. Decomposition tests showed that it took 0.47 years for 50% of sheaths to decompose, and 3.15 years for all sheaths to decompose.

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Consistent scaling of whole-shoot respiration between Moso bamboo (Phyllostachys pubescens) and trees

Journal of Plant Research ◽

10.1007/s10265-021-01320-5 ◽

2021 ◽

Author(s):

Mofei Wang ◽

Shigeta Mori ◽

Yoko Kurosawa ◽

Juan Pedro Ferrio ◽

Keiko Yamaji ◽

...

Keyword(s):

Moso Bamboo ◽

Phyllostachys Pubescens ◽

Scaling Exponent ◽

Carbon Budgets ◽

Metabolic Scaling ◽

Ecosystem Carbon ◽

Bamboo Shoots ◽

Scaling Relationship ◽

Moso Bamboo Forest ◽

Shoot Mass

AbstractBoth Moso bamboo (Phyllostachys pubescens) and tree forests have a large biomass; they are considered to play an important role in ecosystem carbon budgets. The scaling relationship between individual whole-shoot (i.e., aboveground parts) respiration and whole-shoot mass provides a clue for comparing the carbon budgets of Moso bamboo and tree forests. However, nobody has empirically demonstrated whether there is a difference between these forest types in the whole-shoot scaling relationship. We developed whole-shoot chambers and measured the shoot respiration of 58 individual mature bamboo shoots from the smallest to the largest in a Moso bamboo forest, and then compared them with that of 254 tree shoots previously measured. For 30 bamboo shoots, we measured the respiration rate of leaves, branches, and culms. We found that the scaling exponent of whole-shoot respiration of bamboo fitted by a simple power function on a log–log scale was 0.843 (95 % CI 0.797–0.885), which was consistent with that of trees, 0.826 (95 % CI 0.799–0.851), but higher than 3/4, the value typifying the Kleiber’s rule. The respiration rates of leaves, branches, and culms at the whole-shoot level were proportional to their mass, revealing a constant mean mass-specific respiration of 1.19, 0.224, and 0.0978 µmol CO2 kg− 1 s− 1, respectively. These constant values suggest common traits of organs among physiologically integrated ramets within a genet. Additionally, the larger the shoots, the smaller the allocation of organ mass to the metabolically active leaves, and the larger the allocation to the metabolically inactive culms. Therefore, these shifts in shoot-mass partitioning to leaves and culms caused a negative metabolic scaling of Moso bamboo shoots. The observed convergent metabolic scaling of Moso bamboo and trees may facilitate comparisons of the ecosystem carbon budgets of Moso bamboo and tree forests.

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Rates of soil respiration components in response to inorganic and organic fertilizers in an intensively-managed Moso bamboo forest

Geoderma ◽

10.1016/j.geoderma.2021.115212 ◽

2021 ◽

Vol 403 ◽

pp. 115212

Author(s):

Kaiping Huang ◽

Yongfu Li ◽

Junguo Hu ◽

Caixian Tang ◽

Shaobo Zhang ◽

...

Keyword(s):

Soil Respiration ◽

Moso Bamboo ◽

Organic Fertilizers ◽

Bamboo Forest ◽

Intensively Managed ◽

Moso Bamboo Forest ◽

Inorganic And Organic

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Stand-scale transpiration estimates in a Moso bamboo forest: (I) Applicability of sap flux measurements

Forest Ecology and Management ◽

10.1016/j.foreco.2010.07.012 ◽

2010 ◽

Vol 260 (8) ◽

pp. 1287-1294 ◽

Cited By ~ 40

Author(s):

Tomonori Kume ◽

Yuka Onozawa ◽

Hikaru Komatsu ◽

Kenji Tsuruta ◽

Yoshinori Shinohara ◽

...

Keyword(s):

Moso Bamboo ◽

Bamboo Forest ◽

Sap Flux ◽

Flux Measurements ◽

Moso Bamboo Forest

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Object-based classification using SPOT-5 imagery for Moso bamboo forest mapping

International Journal of Remote Sensing ◽

10.1080/01431161.2013.875634 ◽

2014 ◽

Vol 35 (3) ◽

pp. 1126-1142 ◽

Cited By ~ 22

Author(s):

Ning Han ◽

Huaqiang Du ◽

Guomo Zhou ◽

Xiaoyan Sun ◽

Hongli Ge ◽

...

Keyword(s):

Moso Bamboo ◽

Bamboo Forest ◽

Forest Mapping ◽

Object Based ◽

Moso Bamboo Forest ◽

Spot 5

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Nitrogen addition decreases methane uptake caused by methanotroph and methanogen imbalances in a Moso bamboo forest

Scientific Reports ◽

10.1038/s41598-021-84422-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Quan Li ◽

Changhui Peng ◽

Junbo Zhang ◽

Yongfu Li ◽

Xinzhang Song

Keyword(s):

Community Structure ◽

Forest Soils ◽

Nitrogen Addition ◽

N Deposition ◽

Moso Bamboo ◽

Bamboo Forest ◽

N Addition ◽

Atmospheric Methane ◽

Key Factor ◽

Moso Bamboo Forest

AbstractForest soils play an important role in controlling global warming by reducing atmospheric methane (CH4) concentrations. However, little attention has been paid to how nitrogen (N) deposition may alter microorganism communities that are related to the CH4 cycle or CH4 oxidation in subtropical forest soils. We investigated the effects of N addition (0, 30, 60, or 90 kg N ha−1 yr−1) on soil CH4 flux and methanotroph and methanogen abundance, diversity, and community structure in a Moso bamboo (Phyllostachys edulis) forest in subtropical China. N addition significantly increased methanogen abundance but reduced both methanotroph and methanogen diversity. Methanotroph and methanogen community structures under the N deposition treatments were significantly different from those of the control. In N deposition treatments, the relative abundance of Methanoculleus was significantly lower than that in the control. Soil pH was the key factor regulating the changes in methanotroph and methanogen diversity and community structure. The CH4 emission rate increased with N addition and was negatively correlated with both methanotroph and methanogen diversity but positively correlated with methanogen abundance. Overall, our results suggested that N deposition can suppress CH4 uptake by altering methanotroph and methanogen abundance, diversity, and community structure in subtropical Moso bamboo forest soils.

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Processing and Value Addition of Bamboo Shoots for Utilization as Food Products

Journal of Non Timber Forest Products ◽

10.54207/bsmps2000-2020-611g92 ◽

2020 ◽

Vol 27 (1) ◽

pp. 27-32

Author(s):

Ashok Kumar Pandey ◽

Keyword(s):

Shelf Life ◽

Value Added ◽

Cost Effective ◽

Nutrient Content ◽

Food Products ◽

Value Addition ◽

Mineral Contents ◽

Bamboo Shoots ◽

Processed Products ◽

Edible Products

Bamboo shoots being low in fat, high in dietary fiber and rich in mineral contents have been consumed traditionally by the people world over. Besides nutrients it also contains some anti-nutrients e.g. cyanogens. Due to seasonal availability of bamboo shoots, processing for reducing anti-nutrients in raw shoots while keeping nutrients intact and enhancement of shelf life of the value added products assume great significance for its utilization. This paper focuses on post harvest processing and value addition of bamboo shoots for its utilization as food products. Juvenile bamboo shoots of Bambusa bambos, B. tulda, Dendrocalamus asper and D. strictus were collected and processed, by boiling in brine solution, to remove the anti-nutrients (cyanogen). A simple, efficient and cost effective processing method for bamboo shoots was developed. This method significantly reduces the amount of cyanogens and retains considerable amount of nutrients and thus may be utilized for processing of bamboo shoots. Different value added edible products viz. chunks or bari (by adding pulses), pickle, sauce and papad (by adding potato) were prepared. All products were good in taste and texture. Nutritional analysis was done to determine the shelf life of the products. The nutrient content of processed products (chunks, sauce, pickle and papad) showed a gradual decrease and need to be consumed within 6 months from the date of making. However, in case of papad the carbohydrate content did not decrease much but the taste was not acceptable after 8 months. Whereas, in case of pickles, even nutrient content decreased but the product was acceptable even after two years after preparation as it was good in taste and texture. Thus, processing and value addition practices can be considered as key to the future of sustainable management of bamboo resources because they not only provide quality edible products but also enable harvesters/collectors to get better income opportunities.

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Contribution of some Acacia Species on Carbon Sequestration in Blue Nile State, Sudan

10.51527/v2i1.13me ◽

2021 ◽

pp. 97-105

Keyword(s):

Carbon Sequestration ◽

Wood Density ◽

Carbon Stock ◽

Tree Height ◽

Biomass Estimation ◽

Expansion Factor ◽

Wood Volume ◽

Crown Diameter ◽

Breast Height ◽

Acacia Seyal

Background: The current challenge is to reduce the uncertainties in obtaining accurate and reliable data of carbon stock changes and emission factors essential for reporting national inventories. Improvements in above ground biomass estimation can also help account for changes in carbon stock in forest areas that may potentially participate in the Reducing emissions from deforestation and forest degradation and other initiatives. Current objectives for such estimates need a unified approach which can be measurable, reportable, and verifiable. This might result to a geographically referenced biomass density database for Sudanese forests that would reduce uncertainties in estimating forest aboveground biomass. The main objective: of this study is to assess potential of some selected forest variables for modeling carbon sequestration for Acacia seyal, vr. Seyal, Acacia seyal, vr. fistula, Acacia Senegal. The specific objectives include development of empirical allometric models for forest biomass estimation, estimation of carbon sequestration for these tree species, estimation of carbon sequestration per hectare and comparing the amount with that reported to the region. A total of 10 sample trees for biomass and carbon determination were selected for each of the three species from El Nour Natural Forest Reserve of the Blue Nile State, Sudan. Data of diameter at breast height, total tree height, tree crown diameter, crown height, and upper stem diameters were measured. Then sample trees were felled and sectioned to their components, and weighed. Subsamples were selected from each component for oven drying at 105 ˚C. Finally allometric models were developed and the aboveground dry weight (dwt) and carbon sequestered per hector were calculated. The results: presents biomass equations, biomass expansion factor and wood density that developed for the trees. In case of inventoried wood volume, corrections for biomass expansion factor and wood density value were done, and new values are suggested for use to convert wood volume to biomass estimates. The results also, indicate that diameter at breast height, crown diameter and tree height are good predictors for estimation of tree dwt and carbon stock. Conclusion: The developed allometric equations in this study gave better estimation of dwt than default value. The average carbon stock was found to be 22.57 t/ha.

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