一种基于数码相机图像和群落冠层结构调查的草地地上生物量估算方法

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刘超¹^,², 李平¹, 武运涛¹^,², 潘胜难¹^,², 贾舟¹^,², 刘玲莉¹^,^*(

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Estimation of grassland aboveground biomass using digital photograph and canopy structure measurements

LIU Chao¹^,², LI Ping¹, WU Yun-Tao¹^,², PAN Sheng-Nan¹^,², JIA Zhou¹^,², LIU Ling-Li¹^,^*(

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图3. 草地地上生物量一元回归模型的预测结果。决定系数(R²)和均方根误差(RMSE)以对应的颜色显示。

Fig. 3. Prediction results of univariate regression model of grassland aboveground biomass. The determination coefficient (R²) and root-mean-square error (RMSE) from linear regression (blue) and exponential regression (red) are given.