Leaf Area Index Retrieval Based on Prospect,Liberty and Geosail Models Canopy structural parameters and understory light regimes of 3 artificial forest stands in South China Effect of Plant Density on Dynamic Characteristics of Leaf Area Index in Development of Spring Maize Sensitivity analysis for main factors influencing NPP of forests simulated by IBIS in the eastern area of Northeast China Effects of Planting Density on Yield Performance and Density-Tolerance Analysis for Maize Hybrids