Feasibility in Estimating the Dry Leaf Mass and Specific Leaf Area of 50 Bamboo Species Based on Nondestructive Measurements

编号 010032004

推送时间 20211206

研究领域 森林生态 

年份 2021 

类型 期刊 

语种 英语

标题 Feasibility in Estimating the Dry Leaf Mass and Specific Leaf Area of 50 Bamboo Species Based on Nondestructive Measurements

来源期刊 forest

期 第320期

发表时间 20211111

关键词 specific leaf area;  leaf length;  leaf width;  empirical models;  bamboo species; 

摘要 Specific leaf area (SLA) is a good predictor of aboveground net primary productivity. However, the SLA of bamboo species is generally estimated on the basis of destructive measurements rather than the cost-effective and recyclable nondestructive measurements using easily accessible leaf traits such as leaf length (L) and width (W). Considering the strong empirical relationships between leaf area (LA) and leaf structural parameters of bamboo species that were developed by previous studies, this study explores the feasibility of estimating the leaf dry mass (LDM) and SLA of 50 bamboo species using L and W. The results show that the Montgomery equation and its similar forms precisely estimated LA of the 50 bamboo species at both leaf scale (R2 > 0.96 and MAE% < 4.67%) and the canopy scale (R2 > 0.99 and RMSE < 0.09); the LDM of the 50 bamboo species could also be estimated using L and W at both leaf scale (R2 > 0.52 and MAE% < 26.35%) and the canopy scale (R2 > 0.99 and RMSE < 0.003), and the estimated mean SLA of each of the 50 bamboo species had good agreement with the measured values (R2 > 0.99 and RMSE < 1.88) because of the precisely estimated mean LA and mean LDM at the canopy scale, indicating the feasibility of estimating SLA of the 50 bamboo species at the canopy scale based on nondestructive measurements. However, the empirical relationships used for mean SLA estimations are not suitable for SLA estimations at the leaf scale because of the uncertainties in the estimated LDM at the leaf scale. View Full-Text

服务人员 王璐

服务院士 蒋有绪

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