🌲Forestry MCQs
Forestry MCQs
498 MCQs151
The injuries are generally caused by:
AUnnecessary haste
BUse of improper tools
CPruning during the growing season when the bark is loose
DAll of the above
152
Harmful effects can also result from:
APruning trees that are growing very slowly
BRemoving large branches
CEliminating too much of the live crown
DCommitting similar errors of judgment E. All of the above
153
Pruning can be highly profitable or extravagantly wasteful, depending on the judgment of the supervisor of the work. The important considerations are:
AChoice of species
BChoice of stand and site
CGrowth rate, size and age of tree to be pruned
DNumber and characteristics of tree to be pruned E. All of the above
154
The major factors of financial as pects of pruning are:
AInitial cost
BMortality
CNumber of years remaining before harvest
DInterest rate at which pruning cost is compounded E. All of the above
155
Thinnings is:
A& (
BD. None of these
CBoth (
156
The major effects of mulches, irrespective of their composition, are attributed to:
ASuppression of weeds, by restricting the amount of light on the ground surface and thus hindering their germination and growth
BConservation of soil, by preventing erosion
CMaintenance or improvement of soil structure, by eliminating or mitigating the severity of rain and wind action
DAll of the above
157
Thermal insulation, leading to greater deposition of dew. In addition organic mulches also contribute to:
AEnhanced humification and microbial activity leading to higher nutrient availability
BImprovement of soil structure, by incorporation of plant residues and by encouraging soil fauna.
CMulching is of profound importance in dry regions
DEven in more humid climates it may have very beneficial effects with certain species, e.g., the poplar E. All of the above
158
The major types of Mulches is / are:
AArtificial mulches: Paper and plastic mulches
BNatural mulches
CInorganic; soil mulch and stone mulch
DOrganic; branches, twigs and leaves, leaf litter, grass weed E. All of the above
159
Tending operations is / are:
A& (
BD. None of these
CBoth (
160
Necessity for tending is / are:
AFor continuous healthy development
BA tree crop requires to be protected from pests and diseases
CThe individual trees must have adequate room to grow
DIf any infected trees are present E. All of the above