Scientia Silvae Sinicae ›› 2023, Vol. 59 ›› Issue (3): 21-30.doi: 10.11707/j.1001-7488.LYKX20220033
• Frontier & focus: forestry carbon sink capacity improvement driven by carbon peak and carbon neutrality policies • Previous Articles Next Articles
Weisheng Zeng1,Ying Pu1,Xueyun Yang1,Shanjun Yi2
Received:
2022-01-18
Online:
2023-03-25
Published:
2023-05-27
CLC Number:
Weisheng Zeng,Ying Pu,Xueyun Yang,Shanjun Yi. Growth Models and Its Climate-Driven Analysis of Carbon Storage in Tree Layers of Five Major Plantation Types in China[J]. Scientia Silvae Sinicae, 2023, 59(3): 21-30.
Table 1
Statistical characteristics of modeling variables for five plantation types"
人工林类型Plantation type | 变量Variable | 最小值Min. | 最大值Max. | 平均值Mean | 标准差Standarddeviation | 变动系数Coefficient ofvariation(%) |
落叶松 Larix spp. | 碳储量Carbon storage /(t?hm?2) | 0.1 | 129.2 | 33.8 | 25.6 | 75.9 |
林龄 Stand age /a | 5 | 59 | 24.8 | 12.3 | 49.5 | |
马尾松 Pinus massoniana | 碳储量Carbon storage /(t?hm?2) | 0.0 | 134.5 | 37.7 | 26.1 | 69.3 |
林龄Stand age /a | 3 | 60 | 24.4 | 11.2 | 46.0 | |
杉木Cunninghamia lanceolata | 碳储量Carbon storage /(t?hm?2) | 0.0 | 130.4 | 29.7 | 23.8 | 79.8 |
林龄Stand age /a | 3 | 54 | 17.0 | 10.2 | 59.9 | |
杨树 Populus spp. | 碳储量Carbon storage /(t?hm?2) | 0.0 | 118.9 | 25.6 | 19.4 | 75.8 |
林龄Stand age /a | 1 | 20 | 10.2 | 4.4 | 43.3 | |
桉树Eucalyptus spp. | 碳储量Carbon storage /(t?hm?2) | 0.1 | 148.1 | 28.6 | 21.8 | 76.4 |
林龄Stand age /a | 1 | 16 | 4.6 | 3.1 | 66.7 |
Table 2
Mean and Range of climate factors for five plantation types"
人工林类型Plantation type | 年均降水量Mean annual precipitation /mm | 年均气温Mean annual temperature /℃ | |||||
平均值Mean | 最小值Min. | 最大值Max. | 平均值Mean | 最小值Min. | 最大值Max. | ||
落叶松 Larix spp. | 568 | 257 | 1 223 | 7 | 0 | 15 | |
马尾松 Pinus massoniana | 1 338 | 740 | 2 293 | 16 | 12 | 20 | |
杉木 Cunninghamia lanceolata | 1 449 | 694 | 2 222 | 17 | 10 | 22 | |
杨树 Populus spp. | 696 | 79 | 1 583 | 13 | 3 | 18 | |
桉树 Eucalyptus spp. | 1 439 | 672 | 1 984 | 19 | 12 | 23 |
Table 3
Parameter estimates and evaluation indices of models (1) and (2)"
人工林类型Plantation type | 模型Model | 参数估计值 Parameter estimates | 评价指标 Evaluation indices | ||||||
a | b | c | R2 | SEE/(t?hm?2) | MPE(%) | TRE(%) | |||
落叶松 Larix spp. | (1) | 66.114 | 0.059 526 | 2.224 8 | 0.420 | 19.55 | 3.47 | 0.56 | |
(2) | 51.097 | 19.329 | 0.166 33 | 0.391 | 20.02 | 3.56 | 2.73 | ||
马尾松 Pinus massoniana | (1) | 55.446 | 0.083 625 | 2.060 4 | 0.287 | 22.08 | 4.05 | 0.96 | |
(2) | 45.577 | 18.167 | 0.229 57 | 0.254 | 22.59 | 4.14 | 4.04 | ||
杉木Cunninghamia lanceolata | (1) | 53.059 | 0.092 661 | 1.871 0 | 0.381 | 18.69 | 2.37 | 0.40 | |
(2) | 44.136 | 15.178 | 0.252 76 | 0.367 | 18.91 | 2.39 | 2.54 | ||
杨树 Populus spp. | (1) | 39.347 | 0.171 49 | 1.801 8 | 0.215 | 17.20 | 2.46 | 0.40 | |
(2) | 33.026 | 12.974 | 0.442 64 | 0.206 | 17.30 | 2.51 | 1.81 | ||
桉树 Eucalyptus spp. | (1) | 67.640 | 0.147 01 | 1.155 0 | 0.297 | 18.31 | 3.94 | -0.45 | |
(2) | 42.016 | 15.030 | 0.999 91 | 0.293 | 18.37 | 4.13 | 4.60 |
Table 4
Parameter estimates of models (3)"
人工林类型Plantation type | 固定参数Constant parameter | 可变参数Variable parameter | ||||||||
a0 | b0 | c0 | a1 | a2 | b1 | b2 | c1 | c2 | ||
落叶松 Larix spp. | 69.041 | 0 | 0 | ?40.976 | 28.354 | 0.194 33 | ?0.043 74 | 5.2 510 | 0 | |
马尾松 Pinus massoniana | 53.171 | 0.107 00 | 8.6 018 | 0 | 0 | 0 | 0 | 0 | ?3.353 5 | |
杉木 Cunninghamia lanceolata | 53.059 | 0.092 66 | 1.8 710 | 0 | 0 | 0 | 0 | 0 | 0 | |
杨树 Populus spp. | 5.0 416 | 0.086 93 | 2.0 162 | 0 | 27.642 | ?0.072 38 | 0.117 05 | 0 | 0 | |
桉树 Eucalyptus spp. | 67.640 | 0.025 11 | 1.1 550 | 0 | 0 | ?0.017 14 | 0.079 11 | 0 | 0 |
Table 5
Evaluation indices of models (3)"
人工林类型Plantation type | 评价指标 Evaluation indices | |||
R2 | SEE/(t?hm?2) | MPE(%) | TRE(%) | |
落叶松 Larix spp. | 0.469 | 18.72 | 3.34 | 1.14 |
马尾松 Pinus massoniana | 0.293 | 22.01 | 4.04 | 1.10 |
杉木 Cunninghamia lanceolata | 0.381 | 18.69 | 2.37 | 0.40 |
杨树 Populus spp. | 0.325 | 15.96 | 2.29 | 0.99 |
桉树 Eucalyptus spp. | 0.310 | 18.14 | 3.89 | 1.23 |
Table 6
Comparison of average carbon growth on different ages in tree layers for five plantation types"
人工林类型Plantation type | 年均生长量 Average carbon growth /(t?hm?2) | ||||
5 | 10 | 15 | 20 | 最大值Max. | |
落叶松 Larix spp. | 0.65 | 1.11 | 1.37 | 1.48 | 1.50 |
马尾松 Pinus massoniana | 1.21 | 1.72 | 1.85 | 1.81 | 1.85 |
杉木 Cunninghamia lanceolata | 1.66 | 2.07 | 2.07 | 1.93 | 2.10 |
杨树 Populus spp. | 2.91 | 2.75 | 2.27 | 1.85 | 2.96 |
桉树 Eucalyptus spp. | 6.36 | 5.00 | 4.13 | 3.18 | 6.97 |
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