Willow Biomass as Energy Feedstock: The Effect of Habitat, Genotype and Harvest Rotation on Thermophysical Properties and Elemental Composition
Abstract
:1. Introduction
2. Materials and Methods
2.1. The Field Experiments
2.2. Examination of Willow Biomass Quality
2.3. Statistical Analysis
3. Results and Discussion
3.1. Thermophysical Properties of Willow Biomass
3.2. Elemental Composition of Willow Biomass
3.3. Principal Component Analysis (PCA) and an Assessment of the Impact of the Factors under Analysis on Willow Biomass Properties
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Source of Variation | df | Moisture | Ash | Fixed Carbon | Volatile Matter | HHV | LHV | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
F | Share (%) | F | Share (%) | F | Share (%) | F | Share (%) | F | Share (%) | F | Share (%) | ||
Location (Loc) | 1 | 31.3 ** | 0.4 | 11.8 ** | 0.6 | 104.9 ** | 10.3 | 127.4 ** | 9.9 | 763.0 ** | 48.9 | 480.0 ** | 7.9 |
Rep(Loc) | 4 | 1.5 | 0.1 | 2.1 | 0.4 | 0.1 | 0.1 | 0.5 | 0.2 | 1.0 | 0.3 | 0.2 | 0.0 |
Genotype (Gen) | 14 | 514.6 ** | 80.9 | 96.1 ** | 65.9 | 11.8 ** | 16.1 | 20.2 ** | 22.0 | 22.7 ** | 20.4 | 325.3 ** | 74.8 |
Loc × Gen | 14 | 42.8 ** | 6.7 | 3.6 ** | 2.5 | 8.1 ** | 11.1 | 8.2 ** | 9.0 | 5.9 ** | 5.3 | 29.0 ** | 6.7 |
Error 1 | 56 | - | 0.6 | - | 2.7 | - | 5.5 | - | 4.4 | - | 3.6 | - | 0.9 |
Rotation (Rot) | 1 | 29.8 ** | 0.3 | 136.0 ** | 11.3 | 221.4 ** | 20.2 | 397.7 ** | 26.0 | 37.5 ** | 2.2 | 2.8 | 0.0 |
Rot × Loc | 1 | 93.3 ** | 1.0 | 16.9 ** | 1.4 | 1.7 | 0.2 | 0.0 | 0.0 | 56.3 ** | 3.3 | 18.8 ** | 0.3 |
Rot × Rep (Loc) | 4 | 1.5 | 0.1 | 0.9 | 0.3 | 0.4 | 0.1 | 0.9 | 0.2 | 0.3 | 0.1 | 1.7 | 0.1 |
Rot × Gen | 14 | 27.0 ** | 4.0 | 5.5 ** | 6.4 | 9.7 ** | 12.4 | 11.6 ** | 10.6 | 5.3 ** | 4.4 | 13.2 ** | 3.2 |
Rot × Loc × Gen | 14 | 36.6 ** | 5.4 | 3.3 ** | 3.9 | 14.9 ** | 19.1 | 15.4 ** | 14.1 | 9.7 ** | 8.1 | 20.8 ** | 5.1 |
Error 2 | 56 | - | 0.6 | - | 4.7 | - | 5.1 | - | 3.7 | - | 3.3 | - | 1.0 |
Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
Source of Variation | df | C | H | S | N | ||||
---|---|---|---|---|---|---|---|---|---|
F | Share (%) | F | Share (%) | F | Share (%) | F | Share (%) | ||
Location (Loc) | 1 | 480.8 ** | 35.4 | 140.8 ** | 11.1 | 257.9 ** | 17.7 | 903.3 ** | 17.9 |
Rep(Loc) | 4 | 1.6 | 0.5 | 0.2 | 0.1 | 1.8 | 0.5 | 1.2 | 0.1 |
Genotype (Gen) | 14 | 18.1 ** | 18.7 | 15.9 ** | 17.6 | 26.1 ** | 25.1 | 107.0 ** | 29.6 |
Loc × Gen | 14 | 19.5 ** | 20.2 | 34.7 ** | 38.3 | 21.9 ** | 21.1 | 41.4 ** | 11.5 |
Error 1 | 56 | - | 4.1 | - | 4.4 | - | 3.8 | - | 1.1 |
Rotation (Rot) | 1 | 39.4 ** | 3.4 | 88.0 ** | 4.7 | 2.7 | 0.3 | 424.7 ** | 13.3 |
Rot × Loc | 1 | 4.4 ** | 0.4 | 152.1 ** | 8.2 | 12.7 ** | 1.6 | 166.6 ** | 5.2 |
Rot × Rep (Loc) | 4 | 0.2 | 0.1 | 1.2 | 0.3 | 1.1 | 0.6 | 2.5 | 0.3 |
Rot × Gen | 14 | 5.1 ** | 6.0 | 10.8 ** | 8.1 | 8.1 ** | 14.2 | 28.4 ** | 12.4 |
Rot × Loc × Gen | 14 | 5.4 ** | 6.5 | 5.6 ** | 4.2 | 4.6 ** | 8.0 | 15.5 ** | 6.8 |
Error 2 | 56 | - | 4.8 | - | 3.0 | - | 7.0 | - | 1.8 |
Total | 100.0 | 100.0 | 100.0 | 100.0 |
Variable | PC1 | PC2 | PC3 |
---|---|---|---|
Moisture | 0.08 | 0.89 | −0.12 |
Ash | 0.19 | 0.59 | 0.2 |
Fixed carbon | 0.84 | 0.19 | 0.17 |
Volatile matter | −0.8 | −0.39 | −0.22 |
HHV | 0.26 | −0.22 | 0.77 |
LHV | 0.03 | −0.89 | 0.31 |
C | 0.68 | −0.38 | 0.15 |
H | −0.83 | 0.05 | 0.07 |
S | 0.05 | 0.03 | 0.87 |
N | 0.69 | 0.34 | 0.29 |
Eigenvalue | 3.08 | 2.43 | 1.69 |
Explained variance (%) | 30.8 | 24.3 | 16.9 |
Variable | Location | Genotype | Rotation | Total |
---|---|---|---|---|
Moisture | 3.36 | 3.28 | 3.31 | 3.54 |
Ash | 11.01 | 10.96 | 12.13 | 13.08 |
Fixed carbon | 1.63 | 1.09 | 1.86 | 2.63 |
Volatile matter | 0.46 | 0.34 | 0.55 | 0.70 |
HHV | 0.97 | 0.51 | 0.58 | 1.10 |
LHV | 4.42 | 4.12 | 4.13 | 4.62 |
C | 1.21 | 0.62 | 0.74 | 1.38 |
H | 2.99 | 1.56 | 2.02 | 3.60 |
S | 16.89 | 10.77 | 13.31 | 20.84 |
N | 13.36 | 9.64 | 12.94 | 17.15 |
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Stolarski, M.J.; Krzyżaniak, M.; Warmiński, K.; Załuski, D.; Olba-Zięty, E. Willow Biomass as Energy Feedstock: The Effect of Habitat, Genotype and Harvest Rotation on Thermophysical Properties and Elemental Composition. Energies 2020, 13, 4130. https://doi.org/10.3390/en13164130
Stolarski MJ, Krzyżaniak M, Warmiński K, Załuski D, Olba-Zięty E. Willow Biomass as Energy Feedstock: The Effect of Habitat, Genotype and Harvest Rotation on Thermophysical Properties and Elemental Composition. Energies. 2020; 13(16):4130. https://doi.org/10.3390/en13164130
Chicago/Turabian StyleStolarski, Mariusz Jerzy, Michał Krzyżaniak, Kazimierz Warmiński, Dariusz Załuski, and Ewelina Olba-Zięty. 2020. "Willow Biomass as Energy Feedstock: The Effect of Habitat, Genotype and Harvest Rotation on Thermophysical Properties and Elemental Composition" Energies 13, no. 16: 4130. https://doi.org/10.3390/en13164130