The present study was conducted in established plantations of Eucalyptus tereticornis in Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni (Solan), Himachal Pradesh.

The article highlights the regression models to estimate the biomass of twelve shrub species commonly found in the Western Himalaya. After analysis it was found that for most of the species log linear and curvilinear prediction equation gave coefficient of determination with higher value which show the fitness of the equation to precision.

Climate and its variability have been and continues to be the principal source of exceptional fluctuations which wreaked havoc on forests. In Chamba, up to an elevation of 1,800 m chir pine (Pinus roxburghii Sargent) is the main naturally occurring coniferous tree in forests.

To find out the source and within tree variations in kattha and cutch content, fifteen sources of khair were studied in the Shiwalik area of Punjab.