As a key canopy structure parameter, the estimation method of Leaf Area Index (LAI) has always attracted attention. To explore potential to estimate forest LAI from 3D point cloud at low cost, we took photos different angles drone and set five schemes (O (0°), T15 (15°), T30 (30°), OT15 (0° 15°) OT30 30°)), which were used reconstruct based on photogrammetry. Subsequently, values leaf area dist...

Silviculture focuses on establishing forest stand conditions that improve the stand increment. Knowledge about the efficiency of an individual tree is essential to be able to establish stand structures that increase tree resource use efficiency and stand level production. Efficiency is often expressed as stem growth per unit leaf area (leaf area efficiency), or per unit of light absorbed (light...

Leaf area index (LAI) is an important parameter indicating crop growth. At present, spectral technology has developed into a popular means for LAI monitoring, which can provide accurate estimation results by constructing model with information and ground value. Spectral range data type may affect the performance of model, but few studies have compared accuracy using different sensors, especiall...

Among the consequences of current dynamics manmade land use and cover, forest fragmentation results in a large number isolated fragments different sizes. Forest provides many environmental services such as carbon sequestration storage form biomass, demonstrating crucial role native forests need to develop new methods that estimate biomass by non-destructive methods. This work aimed methodology ...