研究文章
异速生长的树模型估算体积和地上部生物量在坦桑尼亚低地森林
表3
参数估计和体积为个体树和截面总量模型的性能。
|
| 部分 |
一般/网站特定的 |
模型 |
参数估计 |
错误 |
RMSE |
|
另类投资会议 |
|
|
|
|
|
| 树总额 |
一般 |
6 |
|
2.1620 |
- - - - - - |
0.013×胸径0.5 |
0.90 |
0.95 |
92.32 |
| 7 |
|
0.00102 |
- - - - - - |
0.013×胸径0.5 |
0.85 |
0.95 |
92.06 |
| 8 |
|
2.3488 |
0.3848 |
0.013×胸径0.5 |
0.90 |
0.95 |
91.64 |
| 9 |
|
0.9039 |
- - - - - - |
0.014×胸径0.5 |
1.10 |
0.92 |
107.42 |
| Dindili森林 |
7 |
|
0.00090 |
|
0.014×胸径0.5 |
0.72 |
0.88 |
45.82 |
| 8 |
|
2.5042 |
0.4329 |
0.012×胸径0.5 |
0.74 |
0.89 |
39.36 |
| 隆多的森林 |
7 |
|
0.0010 |
|
0.011×胸径0.5 |
0.87 |
0.96 |
46.92 |
| 8 |
|
2.3176 |
0.1854 |
0.010×胸径0.5 |
0.92 |
0.96 |
45.34 |
|
| 树枝卷 |
一般 |
6 |
|
2.1658 |
- - - - - - |
0.013×胸径0.5 |
0.84 |
0.78 |
88.74 |
| 7 |
|
0.00031 |
- - - - - - |
0.013×胸径0.5 |
0.82 |
0.78 |
88.58 |
| 8 |
|
2.5514 |
−0.1277 |
0.012×胸径0.5 |
0.83 |
0.79 |
89.78 |
| 9 |
|
0.8901 |
- - - - - - |
0.014×胸径0.5 |
0.90 |
0.73 |
99.72 |
| Dindili森林 |
7 |
|
0.00046 |
|
0.013×胸径0.5 |
0.60 |
0.70 |
39.66 |
| 8 |
|
2.9229 |
−0.3903 |
0.012×胸径0.5 |
0.70 |
0.69 |
38.26 |
| 隆多的森林 |
7 |
|
0.00033 |
|
0.011×胸径0.5 |
0.80 |
0.84 |
45.72 |
| 8 |
|
2.5642 |
−0.0659 |
0.010×胸径0.5 |
0.80 |
0.87 |
43.14 |
|
| 树杆体积 |
一般 |
6 |
|
2.1452 |
- - - - - - |
0.028×胸径0.5 |
0.68 |
0.89 |
47.90 |
| 7 |
|
0.00052 |
- - - - - - |
0.009×胸径0.5 |
0.65 |
0.90 |
47.74 |
| 8 |
|
2.1611 |
0.5517 |
0.008×胸径0.5 |
0.65 |
0.90 |
38.70 |
| 9 |
|
0.9088 |
- - - - - - |
0.008×胸径0.5 |
0.67 |
0.89 |
40.18 |
| Dindili森林 |
7 |
|
0.00047 |
|
0.008×胸径0.5 |
0.42 |
0.79 |
33.9 |
| 8 |
|
2.0392 |
1.2855 |
0.007×胸径0.5 |
0.36 |
0.86 |
4.3 |
| 隆多的森林 |
7 |
|
0.00059 |
|
0.009×胸径0.5 |
0.83 |
0.90 |
33.94 |
| 8 |
|
2.1685 |
0.3038 |
0.009×胸径0.5 |
0.83 |
0.90 |
35.3 |
|
|