FOREST RESOURCES WANAGEMENT ›› 2020›› Issue (5): 89-99.doi: 10.13466/j.cnki.lyzygl.2020.05.014
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MIN Zhiqiang1, HU Yunyun1(), WANG Dejun1, SUN Jingmei1, LI Hongtao1, LI Weizhong2
Received:
2020-07-29
Revised:
2020-09-27
Online:
2020-10-28
Published:
2020-11-30
Contact:
HU Yunyun
E-mail:huyy1985@126.com
Tab.2
Site factor assignment
立地因子 | 编号 | 取值范围 | 优势木生长量/ (m3/hm2) | 得分值 | |
---|---|---|---|---|---|
海拔 | 1 | <500 | 0.037 | 1 | |
2 | 500~1000 | 0.0438 | 2 | ||
3 | 1000~1500 | 0.0552 | 4 | ||
4 | 1500~2000 | 0.059 | 5 | ||
5 | ≥2000 | 0.0509 | 3 | ||
坡向 | 1 | 北 | 0.0408 | 1 | |
2 | 东北 | 0.0381 | 1 | ||
3 | 东 | 0.0552 | 4 | ||
4 | 东南 | 0.0626 | 5 | ||
5 | 南 | 0.0554 | 4 | ||
6 | 西南 | 0.0532 | 3 | ||
7 | 西 | 0.0521 | 3 | ||
8 | 西北 | 0.0497 | 2 | ||
9 | 无坡向 | 0.0487 | 2 | ||
土壤厚度 | 1 | 厚 | 0.0606 | 5 | |
2 | 中 | 0.0517 | 3 | ||
3 | 薄 | 0.0481 | 1 |
Tab.5
Principal component load of site factors
立地因子 | 主要成份 | ||
---|---|---|---|
1 | 2 | 3 | |
地貌(LF) | 0.777 | 0.544 | 0.098 |
海拔(ELE) | 0.823 | 0.467 | 0.069 |
坡向(ASP) | 0.089 | 0.246 | -0.558 |
坡位(SLPP) | 0.206 | 0.032 | 0.618 |
坡度(SLP) | -0.137 | 0.024 | 0.542 |
土壤类型(ST) | -0.592 | 0.642 | -0.073 |
土壤质地(SQ) | -0.386 | 0.107 | 0.391 |
土壤厚度(SD) | 0.686 | -0.56 | -0.048 |
腐殖质厚度(BUFF) | 0.241 | -0.114 | 0.021 |
Tab.6
Goodness of fit and evaluation accuracy of tree height and diameter at breast height growth model
因变量类别 | 模型 | 参数值 | 拟合指标 | 评价指标 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
a | b | c | RMSE | R2 | TRE | Pa | |||||||||||
树高(H) | Richards | 46.44 | 0.41 | 0.00 | 2.26 | 0.61 | 2.26 | 97.84 | |||||||||
Gompertz | 21.23 | 1.37 | 0.02 | 2.23 | 0.62 | 2.08 | 97.63 | ||||||||||
Logistic | 13.23 | 1.81 | 0.08 | 2.51 | 0.51 | 0.98 | 97.63 | ||||||||||
Schumacher | 14.49 | 7.42 | 2.59 | 0.48 | 3.13 | 97.51 | |||||||||||
Richards | 25.66 | 0.03 | 0.82 | 3.98 | 0.66 | 3.36 | 97.24 | ||||||||||
胸径(DBH) | |||||||||||||||||
Gompertz | 49.67 | 2.15 | 0.02 | 3.52 | 0.74 | 2.20 | 97.59 | ||||||||||
Logistic | 21.14 | 3.53 | 0.08 | 4.19 | 0.63 | 1.58 | 97.15 | ||||||||||
Schumacher | 30.29 | 18.44 | 4.16 | 0.63 | 1.72 | 97.24 |
Tab.7
Evaluation index of tree height growth model with site grade as dummy variable
参数 | 评价指标 | ||||||
---|---|---|---|---|---|---|---|
RMSE | R2 | TRE | Pa | SSE | AIC | BIC | |
2.234 | 0.615 | 2.081 | 97.63 | 1853.762 | 1395.12 | 1409.86 | |
a | 1.924 | 0.716 | 0.015 | 98.25 | 1361.66 | 1336.44 | 1360.99 |
b | 1.957 | 0.706 | -0.001 | 98.22 | 1409.38 | 1342.79 | 1367.35 |
c | 1.925 | 0.715 | -0.011 | 98.25 | 1364.14 | 1336.77 | 1361.33 |
a,b | 1.920 | 0.717 | -0.005 | 98.26 | 1356.28 | 1337.71 | 1372.08 |
b,c | 1.923 | 0.716 | -0.010 | 98.25 | 1361.18 | 1338.37 | 1372.75 |
a,c | 1.919 | 0.716 | 0.001 | 98.26 | 1355.12 | 1337.55 | 1371.92 |
a,b,c | 1.918 | 0.717 | -0.004 | 98.26 | 1354.07 | 1339.41 | 1383.60 |
Tab.8
Goodness of fit and evaluation index of growth models of H
哑变量 | 评价指标 | ||||||||
---|---|---|---|---|---|---|---|---|---|
立地质量等级 | 竞争等级 | RMSE | R2 | TRE | Pa | SSE | AIC | BIC | |
a,b | 1.92 | 0.717 | -0.005 | 98.26 | 1356.28 | 1337.71 | 1372.08 | ||
a,b | a | 1.821 | 0.745 | -0.002 | 98.35 | 1219.84 | 1324.14 | 1387.99 | |
a,b | b | 1.832 | 0.742 | 0.001 | 98.34 | 1235.01 | 1326.42 | 1390.26 | |
a,b | a,b | 1.820 | 0.745 | -0.003 | 98.35 | 1218.89 | 1330.00 | 1423.31 |
Tab.9
Evaluation index of DBH growth model with dumb competition grade
参数 | 评价指标 | ||||||
---|---|---|---|---|---|---|---|
RMSE | R2 | TRE | Pa | SSE | AIC | BIC | |
3.523 | 0.737 | 2.199 | 97.59 | 3962.21 | 1746.98 | 1677.92 | |
a | 2.839 | 0.829 | 0.091 | 98.15 | 2966.66 | 1480.11 | 1504.67 |
b | 2.942 | 0.817 | 0.057 | 98.08 | 3185.83 | 1493.26 | 1517.82 |
c | 2.808 | 0.833 | 0.018 | 98.17 | 2901.76 | 1476.03 | 1500.59 |
a,b | 2.810 | 0.833 | 0.014 | 98.17 | 2906.33 | 1478.32 | 1512.70 |
b,c | 2.801 | 0.833 | 0.011 | 98.17 | 2887.19 | 1477.10 | 1511.48 |
a,c | 2.804 | 0.834 | 0.010 | 98.17 | 2892.45 | 1477.44 | 1511.81 |
a,b,c | 2.796 | 0.835 | 0.003 | 98.18 | 2877.79 | 1478.50 | 1522.70 |
Tab.10
Goodness of fit and evaluation index of growth models of H
哑变量 | 立地质量等级 | ||||||||
---|---|---|---|---|---|---|---|---|---|
立地质量等级 | 竞争等级 | RMSE | R2 | TRE | Pa | SSE | AIC | BIC | |
a,c | 2.804 | 0.834 | 0.01 | 98.17 | 2892.45 | 1477.44 | 1511.81 | ||
a,c | a | 2.712 | 0.844 | 0.025 | 98.23 | 2706.93 | 1471.21 | 1535.05 | |
a,c | c | 2.692 | 0.847 | 0.038 | 98.25 | 2667.55 | 1468.50 | 1532.35 | |
a,c | a,c | 2.728 | 0.843 | 0.212 | 98.22 | 2739.21 | 1479.40 | 1572.70 |
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