Chin J Plant Ecol ›› 2011, Vol. 35 ›› Issue (4): 371-379.DOI: 10.3724/SP.J.1258.2011.00371
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MAO Xue-Gang, FAN Wen-Yi*(), LI Ming-Ze, YU Ying, YANG Jin-Ming
Received:
2010-07-13
Accepted:
2010-12-21
Online:
2011-07-13
Published:
2011-04-13
Contact:
FAN Wen-Yi
MAO Xue-Gang, FAN Wen-Yi, LI Ming-Ze, YU Ying, YANG Jin-Ming. Temporal and spatial analysis of forest biomass in Changbai Mountains, Heilongjiang, China[J]. Chin J Plant Ecol, 2011, 35(4): 371-379.
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URL: https://www.plant-ecology.com/EN/10.3724/SP.J.1258.2011.00371
类型 Type | n | 生物量模型 Biomass model | R2 |
---|---|---|---|
灌木 Shrub | 38 | bio = 0.0398 × h - 0.3326 | 0.88 |
草本 Herb | 79 | bio = 0.0175 × h - 0.2888 | 0.89 |
Table 1 Shrub and herb biomass models
类型 Type | n | 生物量模型 Biomass model | R2 |
---|---|---|---|
灌木 Shrub | 38 | bio = 0.0398 × h - 0.3326 | 0.88 |
草本 Herb | 79 | bio = 0.0175 × h - 0.2888 | 0.89 |
年代 Decade | 生物量模型 Biomass model | n | R2 | 预估精度 Precision |
---|---|---|---|---|
20世纪70年代 The 1970s | bio = 0.1053 × gc + 0.0003408 × Y - 0.0117 × TM4-1 616.9939 | 198 | 0.73 | 69.61% |
20世纪80年代 The 1980s | bio = -285.5049 × TM452 + 4.4959 × SR + 0.0481 × gc + 214.7325 | 256 | 0.74 | 70.17% |
20世纪90年代 The 1990s | bio = 0.0046 × DVI + 0.0018 × gc - 0.0321 × TM5 + 88.5821 | 201 | 0.76 | 72.34% |
21世纪初 The early 21st century | bio = 0.0878 × gc - 0.0186 × TM5 + 0.000067 83 × Y + 8.9101 × TM73 + 0.04088 × TM3 + 179.1037 × TM452 - 0.0127 × TM6 - 470.0561 | 272 | 0.76 | 71.43% |
Table 2 Estimation models of biomass by remote sense
年代 Decade | 生物量模型 Biomass model | n | R2 | 预估精度 Precision |
---|---|---|---|---|
20世纪70年代 The 1970s | bio = 0.1053 × gc + 0.0003408 × Y - 0.0117 × TM4-1 616.9939 | 198 | 0.73 | 69.61% |
20世纪80年代 The 1980s | bio = -285.5049 × TM452 + 4.4959 × SR + 0.0481 × gc + 214.7325 | 256 | 0.74 | 70.17% |
20世纪90年代 The 1990s | bio = 0.0046 × DVI + 0.0018 × gc - 0.0321 × TM5 + 88.5821 | 201 | 0.76 | 72.34% |
21世纪初 The early 21st century | bio = 0.0878 × gc - 0.0186 × TM5 + 0.000067 83 × Y + 8.9101 × TM73 + 0.04088 × TM3 + 179.1037 × TM452 - 0.0127 × TM6 - 470.0561 | 272 | 0.76 | 71.43% |
Figs. 7-9 Distribution map of forest biomass changes. 7. Between the 1970s and 1980s. 8. Between the 1980s and 1990s. 9. Between the 1990s and early 21st century.
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