A. The long term estimate of total growth used in forecasting may turnout too higher or too low
B. There may be short-term fluctuations in increment because of climate or treatment effects
C. Both (a) & (b)
D. None of these
Related Mcqs:
- Forage yield of grass depends on soil moisture after burning. In wet areas when there is enough presipitation after burning, forage yield can be increased by ________
A. 50 percent
B. 60 percent
C. 70 percent
D. 80 percent - Forest policies in the past were meant to promote forestry and improve rangelands; watersheds, research and education were ineffective due to the main reasons:
A. No proper mechanism existed for implementing policy directives
B. Provinces felt no follow to comply with national policies because forestry is a provincial responsibility
C. Both (a) & (b)
D. None of these - Reasons for fluting (buttressing) stem:
A. Such irregularity may be the result of epicormic branches
B. Also because of insect attack and genetical inheritance
C. Both (a) & (b)
D. None of these - The reasons for the valuation of forest (timber appraisal as it is called in USA) are:
A. To serve as a guide in buying and selling
B. To serve as a guide for making choice among the other alternatives for investments
C. To set a value for purpose of obtaining loans
D. To estimate damages
E. All of the above - What are the major reasons for burning rengeland:
A. Increase the palatability of forages and removal of old, dead material, thus increasing utilization by grazing animals
B. Suppression of undesirable brush plant
C. Preventing invasion of inferior species and to start grass growth 1-3 weeks earlier on fresh burns
D. All of the above - A population of individuals of a species which are interfertile but differ genetically is called:
A. Ecad
B. Ecotone
C. Ecotype
D. Biome - Sustained yield management has how many advantages:
A. It ensures continuity of the forests indefinitely
B. It ensures steady income to owner
C. It helps better organization of works, and assures steady employment
D. All of the above - Sustained yield management has how many advantages:
A. It ensures continuity of the forests indefinitely
B. It ensures steady income to owner
C. It helps better organization of works, and assures steady employment
D. All of the above - The unclassified area which constituted more than ____ of the total area at the time of independence, in due course of time, has dropped to the present level due to extension in the land use:
A. 40%
B. 50%
C. 60%
D. 70% - The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:
A. Phosphene
B. SiF4
C. Dust
D. Halogens
The correct answer to the question: "The planned yield can differ due to many reasons. Johnson et. Al. List them as:" is "Both (a) & (b) ".
