Chin J Plant Ecol ›› 2009, Vol. 33 ›› Issue (5): 860-869.DOI: 10.3773/j.issn.1005-264x.2009.05.004
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ZHAO Chuan-Yan1,*(), SHEN Wei-Hua2, PENG Huan-Hua1
Received:
2008-12-30
Revised:
2009-03-15
Online:
2009-12-30
Published:
2009-09-30
Contact:
ZHAO Chuan-Yan
ZHAO Chuan-Yan, SHEN Wei-Hua, PENG Huan-Hua. METHODS FOR DETERMINING CANOPY LEAF AREA INDEX OF PICEA CRASSIFOLIA FOREST IN QILIAN MOUNTAINS, CHINA[J]. Chin J Plant Ecol, 2009, 33(5): 860-869.
样方号 No. of sample | 坡度 Slope (°) | 经度Longitude (E) | 纬度Latitude (N) | 坡向 Aspect (°) | 海拔 Altitude (m) | 株数 No. of plants (株·hm-2) | 树高 Height of trees (m) | 胸径DBH (cm) | 胸高断面积Basal area at DBH (cm2) | 冠层盖度Canopy gap fraction (%) |
---|---|---|---|---|---|---|---|---|---|---|
No. 1 | 30 | 100.28° | 38.55° | 25 | 2 655 | 1 350 | 9.84 | 7.41 | 172.56 | 68.98 |
No. 2 | 27 | 100.29° | 38.54° | 30 | 2 835 | 2 475 | 9.44 | 7.13 | 159.85 | 77.02 |
No. 3 | 25 | 100.30° | 38.54° | 12 | 2 889 | 2 225 | 7.78 | 7.20 | 162.93 | 80.34 |
No. 4 | 21 | 100.30° | 38.54° | 8 | 3 005 | 2 200 | 7.04 | 7.23 | 164.28 | 71.70 |
No. 5 | 22 | 100.30° | 38.54° | 18 | 3 106 | 825 | 6.88 | 2.49 | 19.47 | 57.01 |
No. 6 | 34 | 100.30° | 38.54° | 355 | 3 260 | 375 | 5.21 | 2.43 | 18.56 | 22.15 |
Table 1 Stand characterisitcs of Picea crassifolia forest in six sampling plots of Pailugou catchment on Qilian Mountains
样方号 No. of sample | 坡度 Slope (°) | 经度Longitude (E) | 纬度Latitude (N) | 坡向 Aspect (°) | 海拔 Altitude (m) | 株数 No. of plants (株·hm-2) | 树高 Height of trees (m) | 胸径DBH (cm) | 胸高断面积Basal area at DBH (cm2) | 冠层盖度Canopy gap fraction (%) |
---|---|---|---|---|---|---|---|---|---|---|
No. 1 | 30 | 100.28° | 38.55° | 25 | 2 655 | 1 350 | 9.84 | 7.41 | 172.56 | 68.98 |
No. 2 | 27 | 100.29° | 38.54° | 30 | 2 835 | 2 475 | 9.44 | 7.13 | 159.85 | 77.02 |
No. 3 | 25 | 100.30° | 38.54° | 12 | 2 889 | 2 225 | 7.78 | 7.20 | 162.93 | 80.34 |
No. 4 | 21 | 100.30° | 38.54° | 8 | 3 005 | 2 200 | 7.04 | 7.23 | 164.28 | 71.70 |
No. 5 | 22 | 100.30° | 38.54° | 18 | 3 106 | 825 | 6.88 | 2.49 | 19.47 | 57.01 |
No. 6 | 34 | 100.30° | 38.54° | 355 | 3 260 | 375 | 5.21 | 2.43 | 18.56 | 22.15 |
鱼眼镜头4环LAI平均值 Average LAI by Fisheyes 4R | 鱼眼镜头5环LAI平均值 Average LAI by Fisheyes 5R | 冠层分析仪4环LAI平均值 Average LAI by LAI-2000 4R | 冠层分析仪5环LAI平均值 Average LAI by LAI-2000 5R | 异速函数获得的LAI The LAI by allometric equation | |
---|---|---|---|---|---|
鱼眼镜头4环LAI平均值 Average LAI by Fisheyes 4R | 1 | ||||
鱼眼镜头5环LAI平均值 Average LAI by Fisheyes 5R | 0.99 | 1 | |||
冠层分析仪4环LAI平均值 Average LAI by LAI-2000 4R | 0.28 | 0.29 | 1 | ||
冠层分析仪5环LAI平均值 Average LAI by LAI-2000 5R | 0.25 | 0.25 | 0.95 | 1 | |
异速函数获得的LAI The LAI by allometric equation | 0.69 | 0.68 | 0.29 | 0.27 | 1 |
Table 2 Correlation coefficients (r) between leaf area index (LAI) of canopy obtained by fisheyes, LAI-2000 canopy analyzer and allometric equation
鱼眼镜头4环LAI平均值 Average LAI by Fisheyes 4R | 鱼眼镜头5环LAI平均值 Average LAI by Fisheyes 5R | 冠层分析仪4环LAI平均值 Average LAI by LAI-2000 4R | 冠层分析仪5环LAI平均值 Average LAI by LAI-2000 5R | 异速函数获得的LAI The LAI by allometric equation | |
---|---|---|---|---|---|
鱼眼镜头4环LAI平均值 Average LAI by Fisheyes 4R | 1 | ||||
鱼眼镜头5环LAI平均值 Average LAI by Fisheyes 5R | 0.99 | 1 | |||
冠层分析仪4环LAI平均值 Average LAI by LAI-2000 4R | 0.28 | 0.29 | 1 | ||
冠层分析仪5环LAI平均值 Average LAI by LAI-2000 5R | 0.25 | 0.25 | 0.95 | 1 | |
异速函数获得的LAI The LAI by allometric equation | 0.69 | 0.68 | 0.29 | 0.27 | 1 |
Fig. 3 Scatter plot of the values of canopy leaf area index (LAI) of the Picea crassifolia forest obtained by LAI-2000 canopy analyzer and Fisheyes 4R
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