Remote sensing is an emerging technology to acquire information precisely on land surface environmental conditions at regional and local scales. Information on soil surface and vegetation conditions is the fundamental knowledge in environmental science and management. It was discovered that the NDVI was higher for taller heights (H≥8m) of the trees. The difference of NDVI was relatively low between the two heights of the trees (H≥8m and 3≤H<8m) during winter season, when the trees and plants do have less or no leaves. We also found that NDVI was higher to both Red and NIR (near-infrared) reflectance for taller trees, but lower to both Red and NIR for shorter trees. It was depicted that NDVI was higher for taller trees because of larger green leaf density. It was revealed from the study that NDVI was highly correlated with green leaf density and being used as a representative for the status of ground surface biomass.