基于日光诱导叶绿素荧光的东北地区植被物候时空特征及其对气候的响应
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周玉科,张瑞欣,孙文彬,张树辉
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Spatiotemporal Characteristics of Vegetation Phenology in Northeast China based on Solar-induced Chlorophyll Fluorescence and Response to Climate
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Yuke ZHOU,Ruixin ZHANG,Wenbin SUN,Shuhui ZHANG
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表1 2001~2020年东北地区不同植被类型物候参数变化趋势拟合值
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Table 1 The fitting value of phenological parameters of different vegetation types in Northeastern China from 2001 to 2020
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| 植被类型 | 物候参数 | 拟合方程 | R2 | 植被类型 | 物候参数 | 拟合方程 | R2 |
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| 栽培植被 | SOS | y=-0.217x+585 | 0.17 | 草甸 | SOS | y=-0.153x+450 | 0.08 | | EOS | y=0.180x-106 | 0.18 | EOS | y=-0.031x+313 | -0.05 | | LOS | y=0.397x-691 | 0.31* | LOS | y=0.122x-137 | 0.04 | | POP | y=-0.104x+427 | 0.07 | POP | y=-0.198x+610 | 0.17 | | 灌丛 | SOS | y=-0.450x+1.04*103 | 0.31* | 针叶林 | SOS | y=-0.169x+471 | 0.09 | | EOS | y=0.255x-254 | 0.24* | EOS | y=-0.265x+782 | 0.35* | | LOS | y=0.705x-1.29*103 | 0.41* | LOS | y=-0.097x+311 | 0.03 | | POP | y=-0.139x+491 | 0.06 | POP | y=-0.312x+826 | 0.40* | | 草丛 | SOS | y=-0.603x+1.34*103 | 0.17 | 阔叶林 | SOS | y=-0.210x+551 | 0.14 | | EOS | y=0.592x-928 | 0.27* | EOS | y=-0.010x+275 | -0.05 | | LOS | y=1.190x-2.27*103 | 0.37* | LOS | y=0.200x-276 | 0.11 | | POP | y=0.017x+180 | -0.06 | POP | y=-0.188x+582 | 0.27* | | 草原 | SOS | y=-0.453x+1.05*103 | 0.14 | 针阔叶 混交林 | SOS | y=-0.151x+430 | 0.05 | | EOS | y=0.342x-432 | 0.17 | EOS | y=-0.068x+389 | 0.04 | | LOS | y=0.795x-1.48*103 | 0.23* | LOS | y=0.0786x-32.2 | 0.02 | | POP | y=0.181x-148 | 0.03 | POP | y=-0.134x+465 | 0.08 |
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