In this paper, LiDAR was introduced in tree height and stand volume measure. By experiment, the average of trees’ height was 8.68 meter measured by LIDAR, while the actual value was 8.67; the relative error between them was 0.913% which showed positive correlation. Then we fitted the relationship of tree height and stand volume with different coefficient methods. From quadratic polynomial to si...

Introduction The relationship between stand density and volume growth in southern pine species is a topic of long standing interest. Early work includes that of McClay (1955) who studied the relationship between periodic annual growth per acre and residual stand density after thinning measured as basal area. Using linear regression analysis he found a trend of increasing growth with increasing ...

Traditionally, due to its light ecology, oak is regenerated on clear cuts or areas where the crown coverage heavily reduced. Thus, regeneration phase relatively short. Recently, selective long-term phases avoiding large gaps in canopy but fostering mixed-species stands have been advocated as being more keeping with close-to-nature forestry Central European forests. However, examples of successf...

Several models and/or several variable combinations could be used to predict the diameter distribution of a stand. Typically, a fi xed model and a fi xed variable combination is used in all conditions. The calibration procedure, however, makes it possible to choose the measurement combination from among many possibilities, although the model used is fi xed. In this study, the usefulness of util...

With the aim of improving poplar timber production, a successive 8-year irrigation and fertilization factorial experiment with three blocks was designed to measure the response of Populus tomentosa stands to water and nitrogen in Huabei Plain, China. Specifically, we examined the responses of four P. tomentosa clones (P. tomentosa BT17, S86, B331, and 1316) to three irrigation levels (45%, 60%,...