Chin J Plant Ecol ›› 2007, Vol. 31 ›› Issue (5): 903-909.DOI: 10.17521/cjpe.2007.0114
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WU Hua-Bing, ZHU Yan(), TIAN Yong-Chao, YAO Xia, LIU Xiao-Jun, ZHOU Zhi-Guo, CAO Wei-Xing
Received:
2006-01-20
Accepted:
2007-04-23
Online:
2007-01-20
Published:
2007-09-30
Contact:
ZHU Yan
WU Hua-Bing, ZHU Yan, TIAN Yong-Chao, YAO Xia, LIU Xiao-Jun, ZHOU Zhi-Guo, CAO Wei-Xing. RELATIONSHIP BETWEEN CANOPY HYPERSPECTRA PARAMETER AND LEAF NITROGEN CONCENTRATION IN COTTON[J]. Chin J Plant Ecol, 2007, 31(5): 903-909.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2007.0114
高光谱参数 Hyperspectral parameter | 计算公式 Algorithm formula | 文献 Reference | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
吸收谷深度 Depth of absorption valley (VDi) | VDi=1- | Baret et al. ( | |||||||||||
吸收谷特征面积 Feature area of absorption valley (V-Areai) | V-Areai= = | Baret et al. ( | |||||||||||
归一化吸收深度 Normalized depth of valley (NVDi) | NVDi=VDi/V-Areai | Baret et al. ( | |||||||||||
比值植被指数 Ratio vegetation index (RVI) | RVI=IR/R | Pearson & Miller ( | |||||||||||
光化学反射指数 Photochemical reflectance index (PRI) | PRI=(R570-R531)/(R570+R531) | Pe?uelas et al. ( | |||||||||||
绿度归一化差值植被指数 Green normalized difference vegetation index (GNDVI) | GNDVI=(R750-R550)/(R750+R550) | Gitelson & Merzlyak ( |
Table 1 Algorithm of different hyperspectral parameters
高光谱参数 Hyperspectral parameter | 计算公式 Algorithm formula | 文献 Reference | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
吸收谷深度 Depth of absorption valley (VDi) | VDi=1- | Baret et al. ( | |||||||||||
吸收谷特征面积 Feature area of absorption valley (V-Areai) | V-Areai= = | Baret et al. ( | |||||||||||
归一化吸收深度 Normalized depth of valley (NVDi) | NVDi=VDi/V-Areai | Baret et al. ( | |||||||||||
比值植被指数 Ratio vegetation index (RVI) | RVI=IR/R | Pearson & Miller ( | |||||||||||
光化学反射指数 Photochemical reflectance index (PRI) | PRI=(R570-R531)/(R570+R531) | Pe?uelas et al. ( | |||||||||||
绿度归一化差值植被指数 Green normalized difference vegetation index (GNDVI) | GNDVI=(R750-R550)/(R750+R550) | Gitelson & Merzlyak ( |
年份 Year | 品种 Variety | 施氮水平 N rate (kg N·hm-2) | 代号 Code | 叶片氮含量 Leaf nitrogen concentration (mg·g-1) | ||||
---|---|---|---|---|---|---|---|---|
开花 Flowering | 盛花 Full-blossoming | 始絮 Early opening boll | 吐絮 Opening boll | 盛絮 Full opening boll | ||||
2004 | ‘苏棉12’ ‘Sumian 12’ | 0 | N0 | 20.50 | 24.52 | 22.95 | 22.61 | 21.70 |
150 | N1 | 24.65 | 30.97 | 29.74 | 28.44 | 23.47 | ||
300 | N2 | 27.16 | 33.67 | 32.46 | 29.51 | 29.10 | ||
450 | N3 | 32.82 | 34.88 | 31.72 | 31.91 | 30.37 | ||
F值 F Value | 53.07** | 17.45* | 9.20 | 24.82* | 38.91** | |||
‘中棉29’ ‘Zhongmian 29’ | 0 | N0 | 21.17 | 25.94 | 24.01 | 24.52 | 16.95 | |
150 | N1 | 25.04 | 30.04 | 27.27 | 25.37 | 23.70 | ||
300 | N2 | 28.46 | 34.75 | 31.62 | 27.99 | 28.62 | ||
450 | N3 | 30.59 | 33.70 | 33.37 | 31.19 | 29.92 | ||
F值 F Value | 9.44* | 14.80* | 22.50* | 98.66** | 19.01* | |||
2005 | ‘科棉1号’ ‘Kemian 1’ | 0 | N0 | - | 26.38 | 23.00 | 23.92 | 22.16 |
240 | N4 | - | 33.65 | 30.37 | 28.46 | 27.74 | ||
480 | N5 | - | 35.34 | 33.16 | 34.16 | 32.18 | ||
F值 F Value | - | 40.43* | 223.45** | 47.85* | 45.57* | |||
‘美棉33B’ ‘Meimian 33B’ | 0 | N0 | - | 25.39 | 21.48 | 23.25 | 23.90 | |
240 | N4 | - | 33.57 | 30.73 | 27.95 | 25.54 | ||
480 | N5 | - | 37.50 | 36.82 | 36.35 | 28.64 | ||
F值 F Value | - | 28.55* | 169.91** | 222.30** | 22.82* |
Table 2 Leaf nitrogen concentrations of different cotton varieties at flowering, full-blossoming, early opening boll, opening boll and full opening boll stages under different N rates
年份 Year | 品种 Variety | 施氮水平 N rate (kg N·hm-2) | 代号 Code | 叶片氮含量 Leaf nitrogen concentration (mg·g-1) | ||||
---|---|---|---|---|---|---|---|---|
开花 Flowering | 盛花 Full-blossoming | 始絮 Early opening boll | 吐絮 Opening boll | 盛絮 Full opening boll | ||||
2004 | ‘苏棉12’ ‘Sumian 12’ | 0 | N0 | 20.50 | 24.52 | 22.95 | 22.61 | 21.70 |
150 | N1 | 24.65 | 30.97 | 29.74 | 28.44 | 23.47 | ||
300 | N2 | 27.16 | 33.67 | 32.46 | 29.51 | 29.10 | ||
450 | N3 | 32.82 | 34.88 | 31.72 | 31.91 | 30.37 | ||
F值 F Value | 53.07** | 17.45* | 9.20 | 24.82* | 38.91** | |||
‘中棉29’ ‘Zhongmian 29’ | 0 | N0 | 21.17 | 25.94 | 24.01 | 24.52 | 16.95 | |
150 | N1 | 25.04 | 30.04 | 27.27 | 25.37 | 23.70 | ||
300 | N2 | 28.46 | 34.75 | 31.62 | 27.99 | 28.62 | ||
450 | N3 | 30.59 | 33.70 | 33.37 | 31.19 | 29.92 | ||
F值 F Value | 9.44* | 14.80* | 22.50* | 98.66** | 19.01* | |||
2005 | ‘科棉1号’ ‘Kemian 1’ | 0 | N0 | - | 26.38 | 23.00 | 23.92 | 22.16 |
240 | N4 | - | 33.65 | 30.37 | 28.46 | 27.74 | ||
480 | N5 | - | 35.34 | 33.16 | 34.16 | 32.18 | ||
F值 F Value | - | 40.43* | 223.45** | 47.85* | 45.57* | |||
‘美棉33B’ ‘Meimian 33B’ | 0 | N0 | - | 25.39 | 21.48 | 23.25 | 23.90 | |
240 | N4 | - | 33.57 | 30.73 | 27.95 | 25.54 | ||
480 | N5 | - | 37.50 | 36.82 | 36.35 | 28.64 | ||
F值 F Value | - | 28.55* | 169.91** | 222.30** | 22.82* |
品种类型 Cultivar type | 高光谱参数 Hyperspectral parameter | 回归方程 Regression equation | 决定系数 R2 | 样本数 n |
---|---|---|---|---|
‘科棉1号’ `Kemian 1' | Average (760~850)/R700 | y=0.234 4x-1.208 1 | 0.807** | 24 |
Average (760~850)/R550 | y=0.162 6x+1.036 7 | 0.761** | 24 | |
NVD672 | y=0.019 4x-0.265 7 | 0.760** | 24 | |
Average (760~850)/Average (510~560) | y=0.195 9x+1.342 | 0.749** | 24 | |
PRI | y=-0.003 1x+0.084 5 | 0.724** | 24 | |
GNDVI | y=0.007 4x+0.470 2 | 0.723** | 24 | |
‘美棉33B’ `Meimian 33B' | Average (760~850)/R700 | y=0.2x-0.107 9 | 0.804** | 23 |
PRI | y=-0.002 6x+0.069 1 | 0.772** | 23 | |
NVD672 | y=0.015 9x-0.207 1 | 0.750** | 23 | |
Average (760~850)/Average (510~560) | y=0.168 4x+2.228 9 | 0.737** | 23 | |
Average (760~850)/R550 | y=0.136 3x+1.912 2 | 0.734** | 23 | |
GNDVI | y=0.005 8x+0.517 8 | 0.659** | 23 | |
‘中棉29’ `Zhongmian 29' | NVD672 | y=0.021 4x-0.279 9 | 0.614** | 50 |
Average (760~850)/R700 | y=0.160 8x-0.347 1 | 0.544** | 50 | |
PRI | y=-0.003 6x+0.121 | 0.528** | 49 | |
‘苏棉12’ `Sumian 12' | PRI | y=-0.004 5x+0.145 4 | 0.679** | 39 |
NVD672 | y=-0.000 1x+0.011 5 | 0.626** | 39 | |
Average (760~850)/R700 | y=0.231 6x-2.115 7 | 0.616** | 39 |
Table 3 Quantitative relationships of leaf nitrogen concentration (y) to main hyperspectral parameter (x) in different cotton cultivars
品种类型 Cultivar type | 高光谱参数 Hyperspectral parameter | 回归方程 Regression equation | 决定系数 R2 | 样本数 n |
---|---|---|---|---|
‘科棉1号’ `Kemian 1' | Average (760~850)/R700 | y=0.234 4x-1.208 1 | 0.807** | 24 |
Average (760~850)/R550 | y=0.162 6x+1.036 7 | 0.761** | 24 | |
NVD672 | y=0.019 4x-0.265 7 | 0.760** | 24 | |
Average (760~850)/Average (510~560) | y=0.195 9x+1.342 | 0.749** | 24 | |
PRI | y=-0.003 1x+0.084 5 | 0.724** | 24 | |
GNDVI | y=0.007 4x+0.470 2 | 0.723** | 24 | |
‘美棉33B’ `Meimian 33B' | Average (760~850)/R700 | y=0.2x-0.107 9 | 0.804** | 23 |
PRI | y=-0.002 6x+0.069 1 | 0.772** | 23 | |
NVD672 | y=0.015 9x-0.207 1 | 0.750** | 23 | |
Average (760~850)/Average (510~560) | y=0.168 4x+2.228 9 | 0.737** | 23 | |
Average (760~850)/R550 | y=0.136 3x+1.912 2 | 0.734** | 23 | |
GNDVI | y=0.005 8x+0.517 8 | 0.659** | 23 | |
‘中棉29’ `Zhongmian 29' | NVD672 | y=0.021 4x-0.279 9 | 0.614** | 50 |
Average (760~850)/R700 | y=0.160 8x-0.347 1 | 0.544** | 50 | |
PRI | y=-0.003 6x+0.121 | 0.528** | 49 | |
‘苏棉12’ `Sumian 12' | PRI | y=-0.004 5x+0.145 4 | 0.679** | 39 |
NVD672 | y=-0.000 1x+0.011 5 | 0.626** | 39 | |
Average (760~850)/R700 | y=0.231 6x-2.115 7 | 0.616** | 39 |
Fig.3 Relationships of leaf nitrogen concentration to ratio vegetation index (RVI [average (760-850),700]) of hyperspectral index with different cotton cultivars
Fig.4 Relationships of leaf nitrogen concentration to ratio vegetation index (RVI [average (760-850), 700]) of hyperspectral index with combined cotton cultivars
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