obtaining an effective leaf area index; and 3. substituting the effective leaf area index in the following formula: leaf area index of broad-leaved forest=1.5457*effective leaf area index-0.0414 or leaf area index of coniferous forest=0.9651*effective leaf area index+0.4115, thus completing the ...
For needle leaf forest, the formula for calculating green LAI (or needle area index,L) is expressed as (Chen et al., 1997) [2]L=1−α×Le×γEΩE γEis the needle-to-shoot area ratio quantifying the effect of foliage clumping within shoots, ΩEis the element clumping index quantifyi...
Leaf area index (LAI) is a fundamental indicator of crop growth status, timely and non-destructive estimation of LAI is of significant importance for precision agriculture. In this study, a multi-rotor UAV platform equipped with CMOS image sensors was used to capture maize canopy information, sim...
The Leaf Area Index (LAI) is key feature to describe the forest ecophysiological processes. In previous studies, LAI was retrieved using remote sensing data mostly in rural areas. The objective of this study was to investigate the possibility of mapping LAI in the urban areas of Nanjing, China...
6) leaf area index 叶面积指数 1. Red edge characteristics and leaf area index estimation model using hyperspectral data for rape; 油菜红边特征及其叶面积指数的高光谱估算模型 2. Temporal variation of plant height,plant cover and leaf area index in intercropped area of Sichuan,China; 四川间作...
leaf area was observed in control treatment (883.82 cm2/ g). The least leaf area and leaf area index observed in PRD70 treatment (12,449.29 cm2and 2.58, respectively), the least specific leaf area observed in RDI85 (499.37 cm2/ g) and the least leaf area ratio was ...
Rice is one of the most important grain crops worldwide. The accurate and dynamic monitoring of Leaf Area Index (LAI) provides important information to evaluate rice growth and production. This study explores a simple method to remotely estimate LAI with
leaf area index LAp: potential leaf area Lcn: proportion of herbivory that had occurred in the previous month NPP: net primary production : positive feedbacks to soil N cycling sustain decade-long net primary productivity enhancement by CO2 ...
With repeat and systematic global coverage, Earth observation (EO) data provide a unique opportunity to monitor vegetation biophysical variables such as leaf area index (LAI) and the fraction of absorbed photosynthetically active radiation (FAPAR). Both LAI and FAPAR have been designated essential clim...
Heat maps of leaf functional traits of (a) old trees, (b) artificial forests, and (c) natural secondary forests. ***P < 0.001; **P < 0.01; *P < 0.05. LNC, leaf nitrogen content; LPC, leaf phosphorus content; LT, leaf thickness; LMA, leaf mass per area; LTD, leaf ...